The distance of line AB if A(3, 5) and B(-3,-3) is D.10.
[tex]\sqrt[/tex] (5--3)^2 + (3-(-3))^2 = V100 = 10.
How to calculate the AB distance?
To calculate the distance AB between points A (x1, y1) and B (x2, y2), first draw a right triangle with segment ¯AB in the hypothalamus. AC is a horizontal distance, so it's just a difference in x-coordinates: | (x2-x1) |. Similarly, BC is the vertical distance | (y2-y1) |. ..
The vertical distance of the line (Ax + By + c = 0) from point
is equal to | Ax'+ By' + c√A2 + B2 |. Where (x', y') are the coordinates of the point. Since we need the distance of the line from the origin, the coordinates will be (0,0), which is the vertical distance of the line from the origin.
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What is the remainder when x^2+5 is divided by x+1?
Answer: 6
The remainder theorem says that if we divide p(x) over x-k, then the remainder is r = p(k)
In this case, we have p(x) = x^2+5 and x-k = x+1 = x-(-1). So k = -1 is plugged into p(x) to get
p(x) = x^2+5
p(-1) = (-1)^2+5
p(-1) = 1+5
p(-1) = 6
That is why the remainder is 6. You can use polynomial long division or synthetic division to confirm this answer.
Answer:
The remainder would be 6.
Step-by-step explanation:
After being rearranged and simplified, which two of the following equations could be solved using the quadratic formula? A) 5x^3+2x-4=2x^2 B) x^2-6x-7=2x^2 C) 2x^2-3x+10=2x^2+21 D) 5x^2-3x+10=2x^2
Answer:
B & D
Step-by-step explanation:
The quadratic formula can be used to solve for x for any quadratic. Recall a quadratic is any function whose highest exponent known as degree is 2. Looking at the answer selections, A has one term with exponent 3. This isn't possible in the formula. Looking at answer C, the term with exponent 2 has the same coefficient on each side of the equal sign. When it is rearranged these will cancel out no exponent of 2 will be in the equation anymore. Only B & D work after being rearranged and simplified
The two equations after simplifying will give quadratic equations are:-
x ²-6x-7=2x² and 5x²-3x+10=2x².
What is a quadratic equation?
The polynomial having a degree of two or the maximum power of the variable in a polynomial will be 2 is defined as the quadratic equation and it will cut two intercepts on the graph at the x-axis.
Solving for the quadratic equation:-
Option B:-
x ² - 6x - 7 = 2x²
- 2x² + x ² - 6x - 7 = 0
x ² + 6x + 7 = 0
Option D:-
5x² - 3x + 10 = 2x².
5x² - 2x². - 3x + 10 = 0
3x² - 3x + 10 = 0
Therefore two equations after simplifying will give quadratic equations are- x ²-6x-7=2x² and 5x²-3x+10=2x².
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Answer and explanation plz ???
Answer:
25
Step-by-step explanation:
Formula
2xy + 1
Givens
x = 3
y = 4
Solve
2*(3)*(4) + 1
24 + 1
25
What property is illustrated by the statement? 7 + (4 + 4) = (7 + 4) + 4
Answer:
Associative Property of Addition.
Step-by-step explanation:
It states that no matter how the numbers are ordered, the result will be the same. Feel free to look it up on google for more information :)
Answer:
The answer is Associative Property of Addition. Hope I helped!
use the substitution method to solve the system of equations.choose the correct ordered pair.
y=6x+2
y=x+17
A.(0,2)
B.(2,14)
C.(1,17)
D.(3,20)
[tex]\left\{\begin{array}{ccc}y=6x+2&(*)\\y=x+17&(**)\end{array}\right\\\\\text{Substitute}\ (*)\ \text{to}\ (**):\\\\6x+2=x+17\qquad\text{subtract 2 from both sides}\\6x=x+15\qquad\text{subtract x from both sides}\\5x=15\qquad\text{divide both sides by 5}\\\boxed{x=3}\\\\\text{Put the value of x to the second equation}:\\\\y=3+17\\\boxed{y=20}\\\\Answer:\ \boxed{D.\ (3,\ 20)}[/tex]
Answer:
D ( 3, 20 ) For A pex
Step-by-step explanation:
please explain how to do this, I'm using all my points
A. 40 L
B. 80 L
C. 4 L
D. 8L
Answer: choice A. 40 liters
====================================
Explanation:
x = number of liters of the 50% alcohol solution
If we have x liters of 50% alcohol, then we have 0.50*x liters of pure alcohol. This is added to 0.90*40 = 36 liters of pure alcohol (from the 90% solution).
So far we have 0.50*x + 36. This expression represents the total amount of pure alcohol. We want a 70% solution, so we want 70% of the total 40+x meaning 0.50*x + 36 is to be set equal to 0.70*(40+x) and we solve for x as shown below
0.50*x + 36 = 0.70*(40+x)
0.50*x + 36 = 0.70*(40)+0.70*(x)
0.50*x + 36 = 28+0.70*x
36 - 28 = 0.70*x - 0.50x
8 = 0.20x
0.20x = 8
x = 8/0.20
x = 40
So that is why the answer is choice A. 40 liters
If f(x)=x+7 and g(x)=1/x-13 what is the domain of (f times g)(x)
[tex](f\cdot g)(x)=f(x)\cdot g(x)\\\\\text{We have}\ f(x)=x+7\ \text{and}\ g(x)=\dfrac{1}{x-13}.\\\\\text{Substitute}\\\\(f\cdot g)(x)=(x+7)\cdot\dfrac{1}{x-13}=\dfrac{x+7}{x-13}\\\\\text{The domain:}\\\\x-13\neq0\qquad\text{add 13 to both sides}\\\\x\neq13\\\\Answer:\ \boxed{x\in\mathbb{R}-\{13\}}\to\boxed{\text{All real numbers except 13}}[/tex]
Please help, will give brainliest and thanks :) Please attach any thing if needed.
1. What is a tessellation, and how are transformations used to create a tessellation? Answer:
2. Which regular polygons tessellate? (List all.) Answer:
3. Consider your answer to Question 2. Why do these regular polygons tessellate while other regular polygons do not? Include a discussion of interior angles in your response. Also include an example of a regular polygon that would not tessellate and explain why it would not.
Answer:
4. Using your geometry software, create a regular tessellation. You may use color patterns to make the tessellation more visually interesting. Make a screenshot of your tessellation and paste it into this assignment.
In the space provided below, write a detailed explanation of the steps you followed to create your tessellation. A model worksheet and response have been provided for you. If you choose to tessellate the same regular polygon as the example provided, you must use different transformations from those used in the model.
Answer:
Answer:
First of all, I expect you fulfill your word and give what you promise... ha ha just kidding, I already solved a question like this one, please see below explanation.
1. Tessellation is the covering of a surface with pattern(s) of flat shapes so that there are no overlaps or gaps. It is also called Tiling.
2. Triangles, Squares, and Hexagons are regular polygons.
3. Previous three shapes create a regular tessellation pattern because all their sides and all their angles are the same. the intersection point of the interior angles is called "Vertex". For a regular tessellation, the pattern is identical at each Vertex.
Unlike the triangle and quadrilateral case, the Pentagon's angle sum of 540° is not helpful when trying to fit a bunch of Pentagons around a vertex. Therefore, even though the Pentagon is a regular polygon, it cannot tessellate.
4. See attached screenshot of 3 tessellations created with Tessellation Artist Software online.
Evaluate the expression XY FOR X=8 and Y=4
Answer:
32
Step-by-step explanation:
XY means x times y
and x = 8 or x is 8
and y = 4 or y is 4
so 4 times 8 is 32
so
XY = 32
Simplify
(sin Θ − cos Θ)2 + (sin Θ + cos Θ)2
Answer:
Answer in simplified form is:
(sinФ - cosФ)² + (sinФ + cosФ)² = 2
Step-by-step explanation:
Given,
(sinФ - cosФ)² + (sinФ + cosФ)²
This can be simplified as:
(sin²Ф + cos²Ф - 2sinФcosФ) + (sin²Ф + cos²Ф +2sinФcosФ)
We know that : sin²Ф + cos²Ф = 1
So,
( 1 - 2sinФcosФ) + (1 + 2sinФcosФ)
or 1 + 1 -2sinФcosФ + 2sinФcosФ
or 2
Hence we got (sinФ - cosФ)² + (sinФ + cosФ)² = 2
A forest ranger in the west observation tower spots a fire 41° north of east. Fifteen miles directly east, the forest ranger in the east tower spots the same fire at 56° north of west. How far away is the ranger who is closest to the fire? Approximate the distance by rounding to the nearest hundredth of a mile. 9.91 mi 11.87 mi 12.53 mi 18.95 mi
9.915 mi and that's all and that helped friend me please thanks stay pretty
Answer:
9.91 miles
Step-by-step explanation:
Refer the attached figure
Forest Ranger at point A observes the fire at angle of 41° north of east i.e.∠CAB = 41°
The distance between the two rangers is 15 miles i.e. AB = 15 miles
Forest Ranger at point B observes the fire at at 56° north of west. i.e.∠CBA= 56°
Now we are supposed to find who is closest to the fire
So, we are supposed to find the length of AC and BC
So, first calculate ∠ACB
We will use angle sum property of triangle
Angle sum property of triangle : Sum of all angles of triangle is 180°
So, ∠CBA+∠ACB+∠CAB =180°
56°+∠ACB+41° =180°
97°+∠ACB =180°
∠ACB =180°-97°
∠ACB =83°
Now to find AC and BC we will use law of sines
[tex]\frac{a}{sin A}=\frac{b}{Sin B}=\frac{c}{SinC}[/tex]
Refer the attached figure
[tex]\frac{AC}{sin 56}=\frac{BC}{Sin 41}=\frac{15}{Sin83}[/tex]
So, [tex]\frac{BC}{Sin 41}=\frac{15}{Sin83}[/tex]
[tex]BC=\frac{15}{Sin83} \times Sin 41[/tex]
[tex]BC=9.91478[/tex]
[tex]\frac{AC}{sin 56}=\frac{15}{Sin83}[/tex]
[tex]AC=\frac{15}{Sin83} \times sin 56[/tex]
[tex]AC=12.5289[/tex]
So, BC< AC
So, the ranger who is closest to fire is at a distance of 9.91 miles .
So, Option 1 is true
What is the reason for step 5?
Answer: Alternate Interior Angles Theorem (choice B)
If you have two parallel lines, and cut them with a third line, then you'll form two pairs of alternate interior angles. Alternate interior angles are angles that that are on the inside of the parallel "train tracks", but they are on opposite sides of the transversal line.
The Mt. Aconcagua is 22,834ft tall and Mount Everest is 29,035 feet tall. And he climbed both mountains in two years how many feet of mountains did he climb
Answer:
51869 ft
Step-by-step explanation:
If he climbed both mountains, then we add the heights together
22834 + 29035
51869 ft
Answer:
51,869 ft
Step-by-step explanation:
Add the two heights.
22,834 ft + 29,035 ft = 51,869 ft
!!Answer these six questions for 16 points!!
--- Adding & Subtracting Fractions ---
George eats 2/3 cup of Frosted Flakes. He is still hungry so he eats 1/2 cup of Cheerios. How much cereal does George eat in all?
Two kinds of fish are found in a 5-foot fish tank. A blue fish is 3/11 of a foot long and an orange fish that is 2/5 of a foot long. How much longer is the orange fish?
--- Adding & Subtracting Fractions ---
|
--- Multiplying Fractions ---
Sam is making homemade cookies and the recipe calls for 13/8 cups of milk. How much milk does Sam need if she doubles her recipe?
Michelle is buying a poster for her math project. The size of the poster is 2 1/3 feet by 4 4/5 feet. What is the area of the project?
--- Multiplying Fractions --
|
--- Dividing Fractions ---
Cara brought some candy bars from home. She wants to split 2 1/2 candy bars from home. She wants to split 2 1/2 candy bars among her four friends. How much will each person get?
Jack wants to share his candy with his friends. Right now, he has 4 pieces of chocolate. How many friends can he give 1/2 a candy bar too?
--- Dividing Fractions ---
[Each section tell you what operation you have to use in order to solve the problem correctly]
[
Answer:
1) 7/6 or 1 1/6 2)7/55 of a foot longer 3) 13/4 or 3 1/4 cups of milk
4) 56/5 or 11 1/5 feet
Step-by-step explanation:
Let's go over this.
1) If the question asks how much cereal George eats in all, then you must add.
To do this, we must find 2/3 + 1/2. Also, we need to find the common denominator, so that is 6. 2/3 x 2= 4/6. 1/2 x 3= 3/6. Now, it is easier to add. 4/6 + 3/6= 7/6, or 1 1/6.
2) We must find the common denominator again. This is 55, since this is the LCM of 11 and 5. 3/11 x 5= 15/55. 2/5 x 11= 22/55. Now, since the orange fish is longer, 22/55 - 15/55 = 7/55 of a foot longer.
3) This is simple. 13/8 "doubled" is the same as 13/8 x 2, or 13/8 x 2/1. 13 x 2 = 26, and 8 x 1 =8. Our fraction will be 26/8, and we can simplify this to 13/4, or 3 1/4 cups of milk.
4) We can convert these two fractions to improper fractions. 2 1/3 = 7/3, and 4 4/5= 24/5. 7/3 x 24/5= 7 x 24/3 x 5 which is 168/15. The fully simplified fraction is 56/5, or 11 1/5 feet.
5) We must divide 2 1/2 and 4. 2 1/2 = 5/2, and 5/2 divided by 4 is the same thing as 5/2 x 1/4, which is 5/8 of a candy bar.
6) For this problem, we need to find the number of friends. We are supposed to divide 4 and 1/2. 4 divided by 1/2 is equal to 4/1 x 2/1, which is 8. Jack can split his candy bar pieces to 8 friends.
I hope this helped!
What check digit is required to make the following UPC valid? 78007305233D
Answer:
4
Step-by-step explanation:
UPC (Universal Product Code) is a numeric symbol used in retail products. UPC has two variants, an 11 digit UPC Type A bar code and and 6 digit UPC Type E bar code.
The given UPC code 78007305233 is an 11 digit UPC Type A bar code.
1) From the right to the left, starting with odd position, we need to assign the odd/even position to each digit.
0 E 0 E 0 E 0 E 0 E 0 [0 stands for Odd, E stands for Even]
7 8 0 0 7 3 0 5 2 3 3
2) Summing up all digits in the odd positions and multiplying the result by 3
(7+0+7+0+2+3)*3 = 19 * 3 = 57
3) Summing up all digits in the even positions
8+0+3+5+3 = 19
4) Summing up the results of step three and four
57 + 19 = 76
5) Now, divide the result of the fourth step by 10. The check digit would be the number which adds the remainder to 10. In our case, upon dividing, 76 by 10 we get the remainder 6. The check digit is the result of 10-6 = 4.
Which equation represents the line that passes through (-8,11) and (4, 7/2)?
Answer:
The equation of the line would be y = -15/24x + 6
Step-by-step explanation:
In order to find the equation of the line, you need to start by using the slope formula with the points given. This will give you the slope.
m(slope) = (y2 - y1)/(x2 - x1)
m = (11 - 7/2)/(-8 - 4)
m = (15/2)/-12
m = 15/-24
m = -15/24
Now that we have the slope, we can use that and either point to find the equation in point-slope form.
y - y1 = m(x - x1)
y - 11 = -15/24(x + 8)
y - 11 = -15/24x - 5
y = -15/24x + 6
Answer:The answer on ed is y= -5/8x + 6
Step-by-step explanation:
Write the ratio to compare
Answer:
12/24
Step-by-step explanation:
A ratio is a comparison of two quantities and can be written in several forms including fractions. It is most commonly written in fraction form or a:b.
To write a ratio, we count the number of each quantity we are comparing. The number of shaded squares is 12. While the total number of squares is 24. We write the ratio as shaded : total.
12:24 or
[tex]\frac{12}{24}[/tex] or
0.5 as a decimal.
Predict which statements are true about the intervals of the continuous function. Check all that apply.
Answer:
the answer is:
b
d
e
Functions are used to show relationships between variables. The true statements are:
f(x) ≤ 0 over the interval [0, 2].f(x) > 0 over the interval (–2, 0).f(x) ≥ 0 over the interval [2, [tex]\infty[/tex])I've added as an attachment, the table of values of f(x)
Next, we test the given options
(a) f(x) > 0 over the interval ([tex]-\infty[/tex], 3).
Using the table of f(x), the values in ([tex]-\infty[/tex], 3) are values less than 3; i.e. -3 to 2.
If f(2) = 0, then f(x) > 0 is not true
(b) f(x) ≤ 0 over the interval [0, 2].
The values in [0, 2] are values from 0 to 2; i.e. 0, 1 and 2.
If f(0) = 0, f(1) = -3 and f(2) = 0
Then, f(x) ≤ 0
(c) f(x) < 0 over the interval (−1, 1).
Using the table of f(x), the values in (-1, 1) are values between -1 and 1; i.e. 0
If f(0) = 0, then f(x) < 0 is not true
(d) f(x) > 0 over the interval (–2, 0).
Using the table of f(x), the values in (-2, 0) are values between -2 and 0; i.e. -1
If f(-1) = 3, then f(x) > 0 is true
(e) f(x) ≥ 0 over the interval [2, [tex]\infty[/tex])
Using the table of f(x), the values in [2, [tex]\infty[/tex]) are values from 2; i.e. 2 and 3
If f(2) = 0 and f(3) = 15, then f(x) ≥ 0 is true
Hence, the true statements are:
f(x) ≤ 0 over the interval [0, 2].f(x) > 0 over the interval (–2, 0).f(x) ≥ 0 over the interval [2, [tex]\infty[/tex])Read more about functions over interval at:
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In a sale, a table costing £160 is reduced in price by 25%. What is the new price? How do you work this out?
Answer:
£120
Step-by-step explanation:
First calculate 25% of £160 then subtract this from the £160.
25% of 160 = 25/100 * 160
= 1/4 * 160 = £40.
£160 - £40 = £120 (answer).
Answer:
The answer is $120
Step-by-step explanation:
First you must find 25% of $160
First, I found out what is 25% of 16
Next, made 25% = 1/4
Then, 1/4 of 16 is also 16 divided 4 and you will get 4
Then, you add the zero on the back and make it $40
Finally, subtract 40 from 160 and that will be your answer
160 - 40 = $120
Find the unit rate. 2134 meters in 212 hours
Final answer:
The unit rate of 2134 meters in 212 hours is approximately 10.063 meters per hour. This calculation involves dividing the total distance by the total amount of time.
Explanation:
To find the unit rate of 2134 meters in 212 hours, we need to calculate how many meters are covered in one hour. The unit rate is computed by dividing the total distance by the total time.
The calculation is as follows:
Unit rate = Total distance / Total time
Unit rate = 2134 meters / 212 hours
Calculating this gives us a unit rate of approximately 10.063 meters per hour. It's important to make sure that the result is reasonable. If you travel a certain distance in a given number of hours, dividing the distance by the time should give you how many meters you travel in one hour, which in this case, it does.
PLEASE HELP ASAP!!!
Y = 5 x + 15
what do the slope and y intercept mean in the context of this problem?
hint: what do you pay when you step into the cab
Answer: slope is 5 and y-intercept is 15
Step-by-step explanation:
you pay 5 dollars each hour or whatever the time is and have to pay $15 to get in the cab. So the $15 is a must pay.
Answer:
You pay $5\time and must pay $15 to ride in it.
can anyone help me to get the answer for listing 5 rational number btw-2 & -1
Answer:
-1.5, -1.6, -1.7, -1.8, -1.9
Step-by-step explanation:
A rational number is a number that can be written as the ratio of two integers.
-1.5 is a rational number between -2 and -1
-1.5 can be written as -15/10
-1.6 is a rational number between -2 and -1
-1.6 can be written as -16/10
1.7 is a rational number between -2 and -1
-1.7 can be written as -17/10
1.8 is a rational number between -2 and -1
-1.8 can be written as -18/10
1.9 is a rational number between -2 and -1
-1.9 can be written as -19/10
What is the area of a circle whose radius is 5 meters
Answer:78.5
Step-by-step explanation
3.14×r^2
Area of a circle whose radius is 5 meters is 78.55square meter
What is Circle?A circle is simply a round shape that has no corners or line segments. It is a closed curve shape in geometry
The formula for area of circle is Area equal to pi r square
A=πr²
The radius is given which is 5 meters
r=5
Substitute the r value in Area of circle formula
A=3.142×5²
We know that five square is twenty five.
=3.142×25
=78.55
Hence area of a circle whose radius is 5 meters is 78.55square meter.
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Please Simplify 3x+2/7
the answer is 9x(to the power of 2)−42x+49
What is radius of circle P?
Answer:
I do believe the radius of P is PN
Question
What is radius of circle P?
Answer:
PNStep-by-step explanation:
MN is the diameter, so half diameter is the radius, PN is your answer (remember that PM is also a radius)
The following table shows the bonus earned by Abel for selling different numbers of toys: Abel's Bonus Number of Toys Sold Bonus Earned 8 28 10 35 12 42 14 49 16 ? The missing number in the table is _____.
Answer: 56
Step-by-step explanation: The pattern is 8 x 3.5 = 28, 10 x 3.5 = 35, 12 x 3.5 = 42... so 16 x 3.5 = 56
Answer:
56
Step-by-step explanation:
What does the 'x' stand for in the Slope Intercept Form?
Answer:
the x-coordinate
Step-by-step explanation:
The slope intercept form is: y = mx + c
where m⇒ slope
c ⇒ y-intercept
(x,y) is a point on the graph the satisfy the equation representing that graph.
∴ x is the x-coordinate of a point on the line.
write the expression in factored form 49m^2 - n^2
Determine 7th term in the geometric sequence whose first term is 5 and whose common ratio is 2.
Answer: 320
Step-by-step explanation:
[tex]a_n=a_1(r)^{n-1}\quad \text{where}\ a_1\ \text{is the first term, r is the ratio, n is the term}[/tex]
[tex]a_7=5(2)^{7-1}[/tex]
[tex]=5(2)^{6}[/tex]
[tex]=5(64)}[/tex]
[tex]=320[/tex]
Answer:
The 7th term in Geometric Sequence is 320
Step-by-step explanation:
Given : the geometric sequence whose first term is 5 and whose common ratio is 2.
To Find : 7th term
Solution :
Using the formula of Geometric Sequence :
[tex]a_{n} =a_{1} *r^{n-1}[/tex] --(A)
Since,
[tex]a_{1}=5[/tex]
r =2
n = 7 (term no. need to calculate)
Putting these values in ---(A)
⇒[tex]a_{7} = 5*2^{7-1}[/tex]
⇒[tex]a_{7} = 5*2^{6}[/tex]
⇒[tex]a_{7} = 5*64[/tex]
⇒[tex]a_{7} =320[/tex]
Hence the 7th term in Geometric Sequence is 320
A ball with a radius of 6 in is spinning on the table. If the ball spins around 340 revolutions per minute, about how far in inches would the golf ball travel in 20 seconds
Answer:
the golf ball travels 4,295.52 inches in 20 seconds
Step-by-step explanation:
the ball spins around 340 revolutions per minute
340 revolutions per 60 seconds
60 seconds = 340 revolutions
1 seconds = [tex]\frac{340}{60} = 5.667[/tex]
so its around 5.7 revolutions in 1 second
1 second = 5.7 revolutions
20 seconds = 5.7 * 20 = 114 revolutions
In 20 second ball spins 114 revolutions
To find distance traveled in 1 revolution we find the circumference of circle
circumference of circle = 2* 3.14 * r
r is the radius = 6 in
circumference of circle = 2* 3.14 * 6= 37.68 inches
In 1 revolution ball travels 37.68 inches
In 114 revolution ball travels 37.68 * 114 = 4295.52 inches
the golf ball travels 4,295.52 inches in 20 seconds