A circle has a diameter with endpoints of (-1, 5) and (5, 3). What is the center of the circle?

(2, 4)
(4, 4)
(2, 5)
(5, 1)

Answers

Answer 1

Answer:

(2, 4)

Step-by-step explanation:

The center is the midpoint of the diameter.

(x, y) = ((-1 + 5)/2, (5 + 3)/2)

(x, y) = (2, 4)

Answer 2

ANSWER

The center is (2,4)

EXPLANATION

The given circle has a diameter with endpoints of (-1, 5) and (5, 3).

We use the midpoint formula to find the center of the circle

[tex]( \frac{x_1+x_2}{2} ,\frac{y_1+y_2}{2})[/tex]

We plug in the points to obtain;

[tex]( \frac{ - 1+5}{2} ,\frac{5+3}{2})[/tex]

This simplifies to ;

[tex]( \frac{ 4}{2} ,\frac{8}{2})[/tex]

[tex]( 2 ,4)[/tex]


Related Questions

Please help ASAP!

Law of Sines question...

Answers

Answer:

[tex]\large\boxed{a=10.92\ and\ b=14.52}[/tex]

Step-by-step explanation:

Step 1:

Calculate a measure of angle C.

We know: The sum of measures of angles in a triangle is equal 180°.

Therefore we have the equation:

[tex]m\angle C+43^o+115^o=180^o[/tex]

[tex]m\angle C+158^o=180^o[/tex]          subtract 158° from both sides

[tex]m\angle C=22^o[/tex]

Step 2:

Use the law of sines to calculate the length a:

[tex]\dfrac{6}{\sin22^o}=\dfrac{a}{\sin43^o}[/tex]

[tex]\sin22^o\approx0.3746\\\\\sin43^o\approx0.6820[/tex]

[tex]\dfrac{6}{0.3746}=\dfrac{a}{0.6820}[/tex]          multiply both sides by 0.6820

[tex]a\approx10.92[/tex]

Step 3:

Use the law of sines to calculate the length b:

[tex]\dfrac{6}{\sin22^o}=\dfrac{b}{\sin115^o}[/tex]

[tex]\sin22^o\approx0.3746[/tex]

To calculate sin115°, use the formula:

[tex]\sin(180^o-\theta)=\sin\theta[/tex]

[tex]\sin115^o=\sin(180^o-65^o)=\sin65^o[/tex]

[tex]\sin65^o\approx0.9063[/tex]

[tex]\dfrac{6}{0.3746}=\dfrac{b}{0.9063}[/tex]         multiply both sides by 0.9063

[tex]b\approx14.52[/tex]

please answer fast!!! will give brainliest!!!
given: m arc KJ = 124°, m arc IC =38° Find: m∠CQJ, m∠LIJ

Answers

Answer:

First question C

C) after drawing the shape

Second question C

C). Solved the equation and then put 6 in place of X

x+17=3x+5. 3x-x= 17-5. 2x=12. 2x/2=12/2. x=6

NM=6+17= 23. OL=3(6)+5=23

Step-by-step explanation:

hope this helps and mark me as brainliest

A jar contains 12 red marbles numbered 1 to 12 and 8 blue marbles numbered 1 to 8. A marble is drawn at random from the jar. Find the probability of the given event.

Answers

blue marbles =2/3

red marbles = 6/7

The required probability to pick the blue marbles is 40%.

Given that,
A jar contains 12 red marbles numbered 1 to 12 and 8 blue marbles numbered 1 to 8. A marble is drawn at random from the jar.

What is probability?

Probability can be defined as the ratio of favorable outcomes to the total number of events.

here,
Number of red marbles = 12
Number of blue marbles = 8
total number of ball = 12 + 8 = 20
probability =  Number of favorable outcomes / total outcome
Probability of the picking blue marble = 8 / 20 = 0.40

Thus, the required probability to pick the blue marbles is 40%.

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A pitcher contains 4.32-pint of lemon syrup. 12.6 pint of water are added to the syrup to make lemonade. How much lemonade is made

Answers

Answer:

16.92 pints of lemonade was made

Step-by-step explanation:

Blueberry bushes are planted in a field in the year 2009. The blueberry bushes start to grow and cover the field in such a way that the area covered by the bushes doubles every year. If they continue to grow in this way, the field will be entirely covered with blueberry bushes by the year 2016.

When will the field be covered 25% of the way?

A.
The field will be covered 25% of the way in 2013.
B.
The field will be covered 25% of the way in 2015.
C.
The field will be covered 25% of the way in 2014.
D.
The field will be covered 25% of the way in 2012.
Reset Next

Answers

Answer:

  C.  The field will be covered 25% of the way in 2014.

Step-by-step explanation:

Since the field was completely covered in 2016, and the blueberries doubled in size in one year to do that, the field was half-covered in 2015. Similar reasoning tells you the field was 1/4 covered in 2014.

Find the volume of the pyramid below

Answers

Answer: OPTION B

Step-by-step explanation:

Since the base is a square, you need to use the following formula:

[tex]V=\frac{s^2h}{3}[/tex]

Where "s" is the lenght of any side of the base and "h" is the height of the pyramid.

 You can identify in the figure that:

[tex]s=12units\\h=8units[/tex]

Then you can substitute these values into the formula to calculte the volume of this pyramid. Therefore, the result is:

[tex]V=\frac{(12units)^2(8units)}{3}=384units^3[/tex]

Answer:

The correct answer is option B.   384 units³

Step-by-step explanation:

Formula:-

Volume of pyramid = (a²h)/3

Where a -  side of base

h - height of pyramid

To find the volume of given pyramid

Here a = 12 units  and h = 8 units

Volume =  (a²h)/3

  =  (12² * 8)/3

  = (12 * 12 * 8)/3

  = (4 * 12 * 8) = 384 units³

Therefore the correct answer is option B.   384 units³

What number should both sides of the following equation be multiplied by in order to solve for x?

x/7.25= 4

4
7.25
7
29

Answers

Answer:

7.25

Step-by-step explanation:

Multiplying both sides of this equation by 7.25 will both eliminate the fraction and isolate (solve for) x;

7.25(x/7.25= 4) → x = 4(7.25)

                             x = 29

The answer is 29

U Multiply 7.25 and 4 and you get 29

Check your a answer by putting 29 in for x and it's correct

I hope this helped you guys

Which number sentence can be used to determine n, the 9th number in the pattern

Answers

Answer would be D
Because the pattern is going by 3s and it is asking for the 9th so u just multiply 9 by 3 which give you 27 and if you want to check you answer then subtract 6 by 3 gives you 3 and theater number in the pattern is 15 so you just add 15 by 3 which is 18 and repeat the same thing until you get to the 9th number
18, 21, 24, 27...

Write the sentence as a conditional statement. Two parallel lines lie in the same plane. If two lines are parallel, then the lines lie in the same plane. If two lines lie in the same plane, then the lines are parallel.

Answers

Answer:

The conditional statement is:

If two lines are parallel then they lie in the same plane.Step-by-step explanation:

We know that a conditional statement is the statement which is written in the form of:

        If  p then q  i.e.  p → q

where p is the hypothesis of the statement.

and q is the conclusion  of the statement which is based on the hypothesis.

Here we are given a statement as:

 Two parallel lines lie in the same plane.

i.e. the hypothesis of the conditional statement is:

Two lines are parallel.

and conclusion is: They will lie in the same plane

( Because if two lines lie in the same plane then we can't conclude that they will be parallel )

What can you say about the end behavior of the function [tex]f(x) = log_{10} (5x-1)[/tex]?

A. One end decreased and one end approaches a constant
B. One end increase and one end decreases
C. Both ends increase
D. Both ends decrease

Answers

Final answer:

For the given logarithmic function, it is undefined as x approaches negative infinity, and increases without bound as x approaches positive infinity. The correct answer is B. One end increases and one end decreases.

Explanation:

The function [tex]f(x) = log_{10} (5x-1)[/tex] is a logarithmic function with a base of 10. Its end behavior is determined by the properties of logarithmic functions.

Logarithmic functions have one side that increases without bound (to positive infinity) and one side that approaches a certain limit, but never reaches it, hence getting infinitely close to it. In this case, as x approaches negative infinity, the function becomes undefined as (5x-1) becomes a negative number and logarithm is undefined for negative values. On the other end, as x approaches positive infinity, the function will also approach positive infinity because the log of a large number gets larger.

Thus, the correct answer would be B. One end increases and one end decreases (becomes undefined).

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Final answer:

The end behavior of the function is that A. one end decreases and one end approaches a constant.

Explanation:

The given function is f(x) = log10 (5x-1).

To determine the end behavior of the function, we can consider the limit of the function as x approaches positive and negative infinity.

As x approaches positive infinity, the argument of the logarithm, 5x-1, will become larger and larger, resulting in a logarithm that approaches positive infinity. Therefore, the right end of the graph increases.

Similarly, as x approaches negative infinity, the argument of the logarithm will become smaller and smaller, resulting in a logarithm that approaches negative infinity. Therefore, the left end of the graph decreases.

Thus, the correct answer is A. One end decreases and one end approaches a constant.

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Sales tax in one state is 4%. What is the amount of tax on a $56.70 purchase?

a. $4.57
b. $56.74
c. $2.27
d. $22.68

Answers

1) Convert 4% to decimal = .04

2) Multiply the purchase by that decimal

.04(56.70) = $2.27

C

The amount of tax on a $56.70 purchase is $2.27

How to find the amount of tax?

A tax exists as a mandatory fee or financial charge levied by any government on a person or an organization to manage revenue for public works providing the most suitable facilities and infrastructure. The collected fund exists then utilized to fund various public expenditure programs.

Sales tax in state = 4%

The amount tax on $1 purchase = $ [tex]\frac{4}{100}[/tex]  =  $ 0.04

The amount tax on a $56.70 purchase

= 56.70 * 0.04

= $2.27

Therefore option  c. $2.27 is the correct answer

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HELLPPPPPPPPPPPPPPPPPP PLEASE WILL GIVE MORE THAN 5 POINTSSSSSSSS

In this triangle, which of the following is true?

**APEX**

| Multiple Choice |

Answers

The answer to the question is D

Answer:

The measure of x is 35 and a = 8.19

Step-by-step explanation:

The stilts increase a persons heart by 1.5 yards.If Bonnie who is 5 feet and 7 inches tall walks on stilts how tall will be.

Answers

Bonnie will be 10 feet and 1inch. Because 1.5 yards is actually 4.5 feet, since 3 feet make up 1 yard. 5 feet + 4 feet= 9 feet. 7 inches plus 6 inches(which is half a foot) = 13 inches or 1 foot and 1inch. 9 feet + 1 foot and 1 inch = 10 feet and 1 inch.

Answer:

[tex]\boxed{\text{10 ft 1 in}}[/tex]

Step-by-step explanation:

1. Convert the height of stilts to inches

1.5 yd × (36 in/1 yd) = 54 in

2. Convert Bonnie's height to inches

5ft 7in = 5 ft × (12 in/1 ft) + 7 in = 60 in + 7 in = 67 in

3. Calculate Bonnie's height on stilts

67 in + 54 in = 121 in

4. Convert inches back to feet and inches

121 in × (1 ft/12 in) = 10R1 ft = 10 ft 1 in  

Bonnie will be [tex]\boxed{\text{10 ft 1 in}}[/tex] tall on stilts.

Point B is the center of a circle, and AC is a diameter of the circle. Point D is a point on the circle different from A and C. If angle BDA = 20 degrees, what is the measure of angle CBD? Answer choices: a) 70 degrees b) 20 degrees c) 120 degrees d) 140 degrees e) 40 degrees

Answers

BA and BD are radii of the circle, so triangle ABD is isosceles. Then angles BDA and BAD are congruent, and the remaining (central) angle ABD has measure

[tex]m\angle ABD=(180-2\cdot20)^\circ=140^\circ[/tex]

Angles ABD and CBD are supplementary, so

[tex]m\angle CBD=(180-140)^\circ=40^\circ[/tex]

and the answer is E.

The measure of the angle CBD is 40°.

What is a circle?

A circle is a round-shaped figure that has no corners or edges. In geometry, a circle can be defined as a closed, two-dimensional curved shape.

According to the given problem,

BA and BD are radii of the circle.

Triangle ABD is isosceles.

Angles BDA and BAD are congruent.

m∠ABD = (180 - 2*20)

              = 140°

Angles ABD and CBD are supplementary, so,

∠CBD = 180 - 140

           = 40°

Hence, the measure of the angle CBD is 40°.

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What is the approximate volume of the oblique cone? Use π ≈ 3.14 and round to the nearest tenth. 117.8 cubic units 141.3 cubic units 235.5 cubic units 282.6 cubic units

Answers

The volume of an oblique cone, to the nearest tenth is: 235.5 cubic units.

What is the Volume of an Oblique Cone?

Volume of an oblique cone = (1/3) × π × r² × h, where r is radius and h is height of the oblique cone.

Given:

Radius = 5Height = 9π ≈ 3.14

Thus:

Volume of an oblique cone = (1/3) × 3.14 × 5² × 9

Volume of an oblique cone = 235.5 cubic units.

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The approximate volume of the oblique cone is V = 235.5 cubic units

What is a Cone?

A cone is a three-dimensional shape in geometry that narrows smoothly from a flat base (usually circular base) to a point(which forms an axis to the center of base) called the apex or vertex.

The volume of a cone is given by the equation

Volume of Cone = ( 1/3 ) πr²h

where r is the radius of the cone

h is the height of the cone

Surface area of the cone = πr ( l + r )

where l = √ ( b² + r² )

Given data ,

Let the radius of the cone be r = 5 units

Let the height of the cone be h = 9 units

And , Volume of Cone = ( 1/3 ) πr²h

On simplifying , we get

V = ( 1/3 ) ( 3.14 ) ( 5 )² ( h )

V = 1.0467 x 25 x 9

V = 235.5 units³

Hence , the volume of cone is V = 235.5 units³

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The complete question is attached below :

What is the approximate volume of the oblique cone? Use π ≈ 3.14 and round to the nearest tenth.

a) 117.8 cubic units

b) 141.3 cubic units

c) 235.5 cubic units

d) 282.6 cubic units

Which graph represents the function f(x) = 1/x - 1?

Answers

Answer:

To quickly solve this problem, we can use a graphing tool or a calculator to plot the equation.

Please see the attached image below, to find more information about the graph

The equation is:

f(x) = 1/x - 1

Domain

All real numbers except for {0}

Answer:

It would be the fourth graph, D

Explanation:

When faced with these problems, you can either plot it on your own or you can use a graph generator online.

Am I right? Can Somebody Plz Check This For Me
The following image is a visual description of which of the STEM discoveries provided in this lesson?

C is my answer

A.) black hole
B.) Blissymbol
C.) Pythagorean theorem
D.) Theory of evolution

Answers

Answer:

answer is C

Step-by-step explanation:

Answer:

Definitely C.) Pythagorean Theorem

Step-by-step explanation:

Find the distance between point A and point B. A coordinate plane is shown with point A located at left-parenthesis negative 4 comma negative 3 right-parenthesis and point B located at left-parenthesis negative 4 comma 4 right-parenthesis. A. 5 units B. 6 units C. 7 units D. 8 units

Answers

Answer: 7 units

Explanation:

We have two points, (-4,-3) and (-4,4). The X values are both the same (-4). This means we will be working with the Y values. We need to find the distance between -3 and 4. We can use inverse operations to assist us. -3 + 7 = 4. Therefore, we know the distance between these two points is 7 units.

Final answer:

The distance between point A and point B is simply the difference in their y-coordinates since they share the same x-coordinate, resulting in a distance of 7 units.

Explanation:

To find the distance between two points on a coordinate plane, you can use the distance formula. However, in this case, since points A and B have the same x-coordinate, we can calculate the distance by looking at the difference in their y-coordinates. Point A is at (-4, -3) and Point B is at (-4, 4).

The difference in the y-coordinates is 4 - (-3) = 4 + 3 = 7. Therefore, the distance between point A and point B is 7 units, which means the correct answer is C. 7 units.

mary took a trip to orlando that took 3 hours long. mary forgot to check the time as she left, but when she got to orlando, her phone read 10:00 am. what time did mary start her trip?

Answers

Where was Mary leaving from to get to Orlando? : )

because it's still in the morning so e you can easily subtract 3 hours from

10:00 am.

10 - 3 = 7:00 am

What is the solution to the system graphed below?

A) (1, 1)
B) (1, -1)
C) (-1, 1)
D) (-1, -1)

Answers

The answer is D: (-1,-1).

The solution to the system graphed below is (-1,-1) which is option D.

What is a graph?

It is a collection of various points and it is used to draw lines of different functions or equations by finding out two points and by joining them.

How to identify points on the graph?

We have to check solution of the system graphed in the question. There are two lines graphed. Both are intersecting each other at one point. A solution of a line exists at a point where they are intersecting. If we try to find the point then we need to identify origin first and then according to x and y axis points will be found. The required points will be (-1,-1).

Hence the solution of graphed system is (-1,-1).

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The surface areas of two similar pyramids are 48 m2 and 108 m2 Find the scale factor.
A.1/3 B.2/3 C. 3/4 D. 3/3

Answers

Answer:

[tex]\boxed{ \text{B. }\frac{2}{ 3}}[/tex]

Step-by-step explanation:

The scale factor (C) is the ratio of corresponding sides of the two pyramids.

The ratio of the areas is the square of the scale factor.

[tex]\frac{A_{1}}{ A_{2}} =C^{2}\\ \\\frac{48 }{108} = C^{2}\\\\ \frac{4}{9} = C^{2}\\\\ C = \frac{2}{3}\\\\[/tex]

The scale factor is [tex]\boxed {\frac{2}{3}}[/tex].

What are the characteristics of the graph of the inequality x < 5?

It will use an open circle.
The ray will move to the right.
It will use a closed circle.
The ray will move to the left.

You can pick more than one.

Answers

Answer:

see explanation

Step-by-step explanation:

Given x < 5

The graph will have an open circle at 5 indicating that x is not equal to 5, which would be a closed circle.

The ray will move to the left since values less than 5 are to the left of 5

The characteristics of the graph of the inequality x < 5 tells that value of x is less then the 5. It will use an open circle and the ray will move to the left.

What are the characteristics of the graph of the inequality?

Inequality of a graph is represented with the greater then(<), less then(>) or with the other inequity signs. The inequality line on the graph is represented with the dotted lines.

Characteristics of the graph of the inequality-

Open circle- When the value of variable is equal the given number, then the graph of the inequality has a open circle.Closed circle-When the value of variable is not equal the given number, then the graph of the inequality has a closed circle.The ray will move to the right- When the, value of variable is greater then the number, then the ray will move to the right. The ray will move to the left- When the value of variable is less then the number, then the  the ray will move to the left.

Given information-

The inequality equation given in the problem is,

[tex]x<5[/tex]

This equation represent that the value of variable x is less then the number 5.

As in the graph, the value of variable is not equal the given number. Thus the graph of the inequality x<5 has a closed circle.As in the equation, the value of variable x is less then the number 5. Thus the ray will move to the left.

Hence, the characteristics of the graph of the inequality x < 5 tells that value of x is less then the 5. It will use an open circle and the ray will move to the left.

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(25 points to correct answer)
Find the area of sector GHJ given that θ=65°. Use 3.14 for π and round to the nearest tenth. Show your work and do not forget to include units in your final answer.

Answers

Answer:

The area of a sector GHJ is [tex]36.3\ cm^{2}[/tex]

Step-by-step explanation:

step 1

we know that

The area of a circle is equal to

[tex]A=\pi r^{2}[/tex]

we have

[tex]r=8\ cm[/tex]

substitute

[tex]A=\pi (8)^{2}[/tex]

[tex]A=64\pi\ cm^{2}[/tex]

step 2

Remember that the area of a complete circle subtends a central angle of 360 degrees

so

by proportion find the area of a sector by a central angle of 65 degrees

[tex]\frac{64\pi}{360}=\frac{x}{65}\\ \\x=64\pi (65)/360[/tex]

Use [tex]\pi =3.14[/tex]

[tex]x=64(3.14)(65)/360=36.3\ cm^{2}[/tex]

if $6,000 is invested at an annual interest rate of 1.83%, compounded daily, what will the investment be worth after 10 years?

Answers

Answer:

[tex]\$7,204.85[/tex]  

Step-by-step explanation:

we know that    

The compound interest formula is equal to  

[tex]A=P(1+\frac{r}{n})^{nt}[/tex]  

where  

A is the Final Investment Value  

P is the Principal amount of money to be invested  

r is the rate of interest  in decimal

t is Number of Time Periods  

n is the number of times interest is compounded per year

in this problem we have  

[tex]t=10\ years\\ P=\$6,000\\ r=0.0183\\n=365[/tex]  

substitute in the formula above  

[tex]A=\$6,000(1+\frac{0.0183}{365})^{365*10}=\$7,204.85[/tex]  

The investment will be worth approximately $6,960.47 after 10 years.

To solve this problem, we can use the formula for compound interest, which is:

[tex]\[ A = P \left(1 + \frac{r}{n}\right)^{nt} \][/tex]

where:

-  A  is the amount of money accumulated after n years, including interest.

-  P  is the principal amount (the initial amount of money).

-  r  is the annual interest rate (decimal).

-  n  is the number of times that interest is compounded per year.

-  t  is the time the money is invested for, in years.

 Given:

[tex]- \( P = $6,000 \) \\-( r = 1.83\% = 0.0183 \) (as a decimal) \\- \( n = 365 \) (since the interest is compounded daily) \\- \( t = 10 \) years[/tex]

Plugging these values into the compound interest formula, we get:

[tex]\[ A = 6000 \left(1 + \frac{0.0183}{365}\right)^{365 \times 10} \][/tex]

Now, we calculate the value inside the parentheses first:

[tex]\[ \frac{r}{n} = \frac{0.0183}{365} \approx 0.000050137 \][/tex]

[tex]\[ 1 + \frac{r}{n} = 1 + 0.000050137 \approx 1.000050137 \][/tex]

[tex]\[ (1.000050137)^{365 \times 10} \] \[ = (1.000050137)^{3650} \][/tex]

Using a calculator or a software tool to compute this value, we find:

[tex]\[ (1.000050137)^{3650} \approx 1.1600785 \] \[ A = 6000 \times 1.1600785 \approx 6960.47 \][/tex]

Therefore, the investment will be worth approximately $6,960.47 after 10 years.

wich is a better buy?4 cans for $6 or 8 cans for $10​

Answers

Answer:

Step-by-step explanation:

6/4=1.5 (price per can)

10/8=1.25 (price per can)

1.25 is cheaper than 1.5

the second one is the better buy

The better buying option is 8 cans for $10 and this can be determined by using the unitary method and the given data.

Given :

4 cans for $6 or 8 cans for $10.

The following steps can be used in order to determine the correct buying option:

Step 1 - The unitary method can be used in order to determine the better buying option.

Step 2 - If the value of 4 cans is $6 then the value of 1 can is:

4 cans = $6

1 can = [tex]\rm \dfrac{6}{4}[/tex]

= $1.5

Step 3 - If the value of 8 cans is $10 then the value of 1 can is:

= $1.25

So, the best buying option is 8 cans for $10.

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The people of Bridgetown wanted to build a bridge across a nearby river. Since they were poor swimmers, their master Trigonomos agreed to measure the width of the river without actually crossing it. Trigonomos spotted a tree across the river and marked the spot directly across from it. Then he walked to another point 15 meters down the river and found that the angle between his side of the river and the line connecting him to the tree was 76?, degree . What is the width of the river?

Answers

Answer:

60.2 m

Step-by-step explanation:

The mnemonic SOH CAH TOA reminds you ...

Tan = Opposite/Adjacent

The width of the river is the side of a right triangle opposite the angle of 76°. The 15 m distance is the length of the side adjacent to the measured angle. So, we have ...

tan(76°) = width/(15 m)

Multiplying by 15 m, we get ...

width = (15 m)tan(76°) ≈ 60.2 m

The width of the river is about 60.2 m.

Answer:

the answer is 60.16

Step-by-step explanation:

got it right

HELPPPP PLEASEEE 45 POINTSSS

y=-2x^2+6x-5

1. What is the vertex?

2. Does it open up or down?

3. What is the intercept?

Answers

Using the numbers in the given equation:

a =-2, b = 6 and c = -5

The vertex form is written as : a(x+d)^2 + e

we need to find d and e:

d = b/2a = 6/2(-2) = -3/2

e = c-b^2/4a = -5 - 6^2/4(-2) = -1/2

Now substitute the letters for their values in the vertex form formula above:

-2(x-3/2)^2 -1/2

The vertex is (3/2, -1/2)

2. The formula begins with a negative number ( -2) so the Parabola opens downwards.

3. To find the intercept replace x with 0 and solve for y:

the intercept is (0,-5)

Answer:

Step-by-step explanation:

The first thing you should do is get a graph of this quadratic. The graph will answer the location of the vertex and it will also tell you if it opens up or down. It (finally) shows the intercept although that is easily found.

Question 3

You find the intercept by making x = 0

When you do that y becomes

y = - 2(0)^2 + 6(0) - 5

y = 0 - 5

y = - 5

Question 2

This too, is just a visual answer. Just look at the number in front of x^2

y = ax^2

if a < 0 then the graph always opens down

if a > 0 then the graph always opens up

In this case, y = - 2x^2. The graph opens down. The 6x + 5 does not affect the answer at all.

Question 1

This part is the tricky part and you have to complete the square.

Put brackets around the first 2 terms.

y = ( - 2* x^2 + 6x ) - 5    Pull out the common factor of - 2

y = -2 (x^2 - 3x) - 5         divide - 3 by 2 and square. Add inside the brackets.

y = -2(x^2 - 3x +  (3/2)^2  ) - 5   Add 2 times the squared amount outside the brackets.

y = -2(x^2 - 3x + (3/2)^2 ) - 5 + 2*(3/2)^2

y = -2(x^2 - 3x  + 9/4)     - 5 + 9/2     Show what is inside the brackets as a perfect square. Combine - 5 and 9/2

y = -2(x - 3/2)^2 - 5 + 4.5

y = -2(x - 3/2)^2 - 0.5

The vertex should be at (3/2, - 0.5)

Answer: The graph confirms (3/2, - 0.5) as the vertex.

a 2 + b 2 = c 2 Complete the equation below by writing an expression equivalent to the length of a, the leg of a right triangle.
a=square root [ ] - [ ]

Answers

Answer:

[tex]a=\sqrt{c^2-b^2}[/tex]

Step-by-step explanation:

Subtract b² from both sides of the equation.

a² = c² -b²

Now, take the square root of both sides of the equation.

a = √(c² -b²)

_____

Please note that when writing the square root (or any function) in plain text, it only applies to the first operand after the function name. That is ...

square root [ ] - [ ]

is evaluated as ...

(square root [ ]) - [ ]

If you want an entire expression to be considered to be "under the radical", then it must be enclosed in parentheses:

square root ([ ] -[ ])

This is the interpretation demanded by the Order of Operations. It can only be modified by using parentheses.

Malia is placing a barrier around the edge of a circular path with a diameter of 13 meters. The barriers are in lengths of 2.5 meters. What is the best approximation of how many pieces of barrier Malia will need? Use 3.14 to approximate for ? .

Answers

Answer:

64

Step-by-step explanation:

What is the volume of the cylinder below

Answers

Answer:

D

Step-by-step explanation:

Answer:

The volume of oblique cylinder is 252π cm³

D is correct.

Step-by-step explanation:

We are given a oblique cylinder whose radius 6 and slant height 8, vertical height 7

Volume of cylinder = Base area x vertical height.

Because volume of cylinder can't be change if we change oblique to vertical cylinder.

Base area [tex]=\pi r^2[/tex]

                 [tex]=\pi \times 6^2[/tex]

                [tex]=36\pi\text{ cm}^2[/tex]

Vertical height = 7 cm

Volume of cone [tex]=36\pi \times 7[/tex]

                           [tex]=252\pi\text{ cm}^3[/tex]

Hence, The volume of oblique cylinder is 252π cm³

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