Please help me now plz
I will mark you brainliest

Answer:

Slope of the base segment line is zero, hence base segment is horizontal

Slope of the segment that joins the vertex angle to the midpoint of its base is undefined hence the line is vertical

Therefore, angle between base segment line and the segment line from the vertex angle to the midpoint is perpendicular

Therefore, the segment that joins the vertex angle to an isosceles triangle to the midpoint of its base is perpendicular to the base

Step-by-step explanation:

Here we prove the required relation as follows;

Let the isosceles be ABC

The coordinates of the points are

C = (0, 0) (Vertex)

A =  (-a, b)

C = (a, b)

P = (0, b) (Midpoint of base)

Therefore, the gradient or slope of the base AC is presented as follows;

[tex]Slope, m \, of \. base, \, AC= \frac{dy}{dx} = \frac{b - b}{a - (-a)} = \frac{0}{2\cdot a} = 0[/tex]

Hence, segment AC is vertical

[tex]Slope, m \, of \, segment \ CP \, joining \, vertex, \, to \, midpoint, P, on \,AC = \frac{0 - b}{0 - 0} = \frac{-b}{0} = Undifined.[/tex]

Hence, segment CP is vertical

Therefore, the segment that joins the vertex angle to an isosceles triangle to the midpoint of its base is perpendicular to the base.

In an isosceles triangle with base BC, the segment from vertex A to the midpoint M of BC is vertical, whereas BC is horizontal. Since vertical and horizontal lines are perpendicular by definition, AM is perpendicular to BC.

Let's assign coordinates to the isosceles triangle ABC, where AB = AC and BC is the base. Assume the vertex A is at the origin (0, 0), the base endpoints B and C are at coordinates (-b, c) and (b, c) respectively.

Answer:

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hi ut ir8fue j de bi 8d

Step-by-step explanation:

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Answer:

I think it is not proportional because the line is supposed to go thro the middle of each dot, and some of the dots don't have a line thro the middle only on the side or not even on the dot.

Hope this helps!

Step-by-step explanation:

please mark me brainliest...

Answer:

A

Step-by-step explanation:

Answer:

Ms. Davis is wrong

Step-by-step explanation:

she can make equal groups of 6

Answer:

2

Step-by-step explanation:

Arc length = r × theta

Arc length = 5 × 0.4

= 2

Answer:

i think it would be rounded to a whole

Step-by-step explanation:

tell me if im wrong

Step-by-step explanation:

Convert

13/15

to a decimal.

0.8

¯

6

Find the number in the tenth place

8

and look one place to the right for the rounding digit

6

. Round up if this number is greater than or equal to

5

and round down if it is less than

5

.

0.9

Answer:

9.0

Step-by-step explanation:

depends on the last digit of the number.If it's 5 or more it becomes 9.0.If it's less than 5, then it's 8.0.In this case it's greater so the answer is 9.0

Hope that was helpful.Thank you!!!

Answer:

the answer is A i finished that test now im on another test and timed sorry for no explanation

Step-by-step explanation:

A

Answer:

A

Step-by-step explanation:

A because I did all on the question and A was the one

Answer:

[tex]50\geq $30 + $4[/tex]

Step-by-step explanation:

Answer:

The domain of Function A is the set of real numbers.

The domain of Function B is the set of real numbers greater than or equal to 0.

The domain of a function is the set of its possible inputs. it means that  the set of input values  for which the function is defined.

The domain of Function A is the set of real numbers.

The domain of Function B is the set of real numbers greater than or equal to zero.

Here, function A is given that,  [tex]f(x)=-3x+2[/tex]

Since, above function can take any value as its input.

That is function is defined for every value of x.

Therefore, The domain of Function A is the set of real numbers.

Here, graph of function B is attached.

From graph of function B, it is observed that graph of function is right side of Y - axis and starting from x = 0.  It means that function B can take any value greater than equal to zero.

Therefore, The domain of Function B is the set of real numbers greater than or equal to zero.

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Answer:

d = − 5

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable.

Answer:

-1.5

Step-by-step explanation:

subtract 3 from both sides.

5d=-7.5

divide by 5

d=-1.5

Answer:

[tex]\dfrac{5}{y+5}[/tex]

Step-by-step explanation:

Here, we have to find the sum of 2 fractions:

1st fraction: [tex]\dfrac{3y}{y^{2}+7y+10}[/tex]

2nd fraction: [tex]\dfrac{2}{y+2}[/tex]

Considering the denominator of 1st fraction:

[tex]y^{2}+7y+10[/tex]

Using factorization method:

[tex]7y[/tex] can be written as [tex](2y + 5y)[/tex].

[tex]\Rightarrow y^{2}+2y+5y+10[/tex]

Taking 5 common from [tex]5y+10[/tex] and y common from [tex]y^{2}+2y[/tex]: [tex]\Rightarrow y(y+2)+5(y+2)[/tex]

Now taking [tex](y+2)[/tex] common:

[tex]\Rightarrow (y+5)(y+2)[/tex]

[tex]\dfrac{3y}{y^{2}+7y+10}[/tex] can be written as [tex]\dfrac{3y}{(y+5)(y+2)}[/tex]

Now, calculating the sum:

[tex]\dfrac{2y}{(y+5)(y+2)} + \dfrac{2}{y+2}[/tex]

Taking LCM and solving:

[tex]\Rightarrow \dfrac{3y+2(y+5)}{(y+5)(y+2)}\\\Rightarrow \dfrac{5y+10}{(y+5)(y+2)}\\\Rightarrow \dfrac{5(y+2)}{(y+5)(y+2)}\\\Rightarrow \dfrac{5}{(y+5)}[/tex]

Hence, answer is [tex]\dfrac{5}{y+5}[/tex].

Answer:

its c

Step-by-step explanation:

i have takin da test

Answer:

The last graph f(x)=x^2-6x-1

Step-by-step explanation:

The axis of symmetry of a parabola is a vertical line that divides the parabola into two congruent halves. The axis of symmetry always passes through the vertex of the parabola . The x -coordinate of the vertex is the equation of the axis of symmetry of the parabola.  

The graph shown in picture D with equation f(x) = x²-6x-1 , has axis of symmetry at x = 3.

4 graphs are given in order to identify which of them contains axis of symmetry at x = 3

The axis of symmetry is the center axis of the curves where the curve is equally divided.

For Picture A
The axis of symmetry is x = 1.5 so it is not the correct option.

For picture B
The axis of symmetry is x = 1.3 so it is not the correct option.

For picture C
The axis of symmetry is  x = -3. So it is not correct option

For picture D
The axis of symmetry is x = 3.  it is the correct option.

The graph shown in picture D with equation f(x) = x²-6x-1 , has axis of symmetry at x = 3.

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Answer:

50.00$

Step-by-step explanation:

99.99 minus 73.50

Gives you 27.50 so then you add up what you have left so that gives you 50.00$

Step-by-step explanation:

a. the area of a two-dimensional composite figure

In this situation, we need to draw any necessary segments to view the figure as basic shapes, then:

b. the surface area of a three-dimensional composite figure

As we know (3D) composite objects are made of two or more objects put together. To find the surface area of a 3D composite object, we need:

Hope it will find you well

Final answer:

To find the area of composite figures, break them down into simpler shapes and sum up their areas. For three-dimensional figures, find individual surface areas and add them up.

Explanation:

Area can be determined by counting the number of squares inside a shape on 1 cm x 1 cm graph paper. For composite figures, break them down into simpler shapes, find their individual areas using appropriate formulas, then add them up. For three-dimensional composite figures, calculate surface area by finding the sum of individual surface areas of each component shape.

Answer:

Length = 12 inches, height = 3 inches

Step-by-step explanation:

First, you have to set up a proportion. 2/7, x/42.

Then, you cross multiply and get the setup of 84=7x

Finally, you divide 84 by 7 and get 12.

12 is the length, and there is no other answer that has 12 in the height. You could just do the same proportion to get 3, though.

Answer:

A: length = 12 inches, height = 3 inches.

Step-by-step explanation:

The company wants the boxcar to be geometrically similar to the original boxcar.

The first step to doing this is to create a ratio. They tell us the smallest dimension of the toy boxcar must be 2 inches.

The smallest dimension of the original boxcar is 7 feet. We can use these two numbers to create a ratio. A 7:2 ratio to be exact.

A 7:2 ratio can be represented as 7/2. 7/2 equals 3.5. All you have to do now is divide the dimensions in the original boxcar by

For example, the length of the original boxcar is 42 feet. If we put 42/3.5 into a calculator, you get 12 as your answer. The same thing is true for the height.

Answer:

B - The arrows should be length of 6.

D - The arrows should start at zero.

E - The arrows should point in the negative direction

Step-by-step

since it is asking us to find the product you will have to  start at negative 6 and then you are going to jump 3 spaces 3(-6)

Answer:

B - The arrows should be length of 6.

D - The arrows should start at zero.

E - The arrows should point in the negative direction

Step-by-step explanation:

Answer:The expressions for the payment made to Mary are,

        (Monday)      90 = 15m + b

        (Tuesday)     62 = 8m + b

where m and b are the fee per student and the base fee, respectively. Solving for m and b, the values are 4 and 30.

The equation that represents Mary's earning is

                                   y = 4x + 30

For 20 students,

                                   y = 4(20) + 30 = 110

For Lisa's earnings,

                                    y = 8x + 15

Substituting 20,

                                   y  =8(20) + 15 = 175

Thus, Lisa would earn more than Mary by $65.

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Step-by-step explanation:

Answer:

(a)|MA|, |MB| and |MC|

(b) |BD|

(c) |BC|

Step-by-step explanation:

An adapted diagram of this question is attached. You can vary the labelled letters as required.

Definition

By these definitions:

(a)Segments that are radii of this circle.

We have: |MA|, |MB| and |MC|

(b)Segment that is a diameter of this circle.

|BD|

(c)A chord of this circle that is not a diameter.

|BC|

Answer:

4

Step-by-step explanation:

Answer:

x=8

y =4

Step-by-step explanation:

x + y = 12 if x = 2y

Replace x with 2y in the first equation

2y+y = 12

Combine like terms

3y =12

Divide by 3

3y/3 =12/3

y = 4

Now we can find x

x=2y

x=2(4)

x = 8

Answer:

830 calories

Step-by-step explanation:

The number of calories in a muffin is directly proportional to the amount of sugar in the muffin.

Let the number of muffins be N and the amount of sugar in the muffin be A. This means that:

N α A

=> N = kA

where k = constant of proportionality

A 200 calorie muffin has 500 grams of sugar.

This implies that:

200 = k * 500

=> k = 200 / 500 = 2/5

The constant of proportionality is 2/5.

The number of calories in a muffin with 2075 grams of sugar is:

N = 2/5 * 2075

N = 830 calories

There are 830 calories.

Final answer:

A muffin with 2,075 grams of sugar contains 830 calories, calculated using a proportion based on a known ratio of calories to sugar grams.

Explanation:

The question asks: How many calories are in a muffin with 2,075 grams of sugar if we know a 200 calorie muffin has 500 grams of sugar? This is an example of a proportion problem.

First, let's establish the relationship between calories and grams of sugar. We know that 200 calories correspond to 500 grams of sugar. We can set this up as a ratio: 200 calories/500 grams = x calories/2,075 grams, where x is the number of calories in the muffin with 2,075 grams of sugar.

To find x, we cross-multiply and solve for x: (200 calories * 2,075 grams) / 500 grams = x calories
Thus, x = 830 calories.

Therefore, a muffin with 2,075 grams of sugar contains 830 calories.

Answer: Strong negative

Step-by-step explanation:

Correlation coefficient tells about the strength ( Strong , moderate or weak ) and direction ( positive or negative) of the relationship between two quantities.

The given correlation coefficient :-0.898

Since, it lies between -1 and -0.5 and has negative sign, it means it indicates a strong negative  between the two things.

Hence, the correct answer is "strong negative ".

Answer:

You actually do not ask anything here, so i will find the equation for the height and i will use it to find something useful, like the maximum height of the baseball.

For any object in a vertical motion, the only force acting on it is the gravitational force, so the acceleration of the object will be equal to g.

a(t) = -g

where the minus sign is because the gravitational acceleration pulls down.

For the velocity we can integrate over time, and get:

v(t) = -g*t + v0

Where v0 is the initial velocity, in this case v0 = 72 ft/s

v(t) = -g*t + 72ft/s

with this equation we can find the time in wich the height is maximum, we need to find the time where the velocity is 0.

-g*t + 72 = 0

t = 72/g

for the height we can integrate over time again:

h(t) = (-g/2)*t^2 + 72ft/s*t + h0

where h0 is the initial height, in this case h0 = 3ft

here we can also replace the value of g = 32ft/s^2

h(t) = (-16ft/s^2)*t^2 + 72ft/s*t + 3ft

Now we can evaluate this in the time that we previously find, t = 72/g = 72/32 = 2.25s

h(2.25s) = -16*2.25^2 + 72*2.25 + 3 = 85.08 feet

Answer:

120 milligrams because 12 mg *10 =120

Ed's entire set of guitar picks, with each pick weighing 12 mg and having 10 picks in total is 0.12 grams.

To calculate the total weight of the guitar picks in grams, we first need to know that there are 10 guitar picks and each pick weighs 12 mg.

Knowing that there are 1000 milligrams in a gram, we can convert the weight of one pick into grams:

Weight of one pick in grams = 12 mg / 1000 = 0.012 grams.

Next, we multiply this by the total number of picks to get the combined weight:

Total weight of 10 picks = 0.012 grams pick * 10 picks = 0.12 grams.

So, Ed's entire set of guitar picks weighs 0.12 grams.

Answer:

its b

Step-by-step explanation:

i just did it

Answer:

graph B on edg

Step-by-step explanation:

Answer:

(12 ft)^2 = 144 square feet

Step-by-step explanation:

How does the store sell carpet?

In square feet of carpet, right?

so

If the whole square bedroom needs to be covered with carpet, then the area to cover is  A = x * x = 12 feet * 12 feet = 144 square feet

Answer:

Pick any fraction that is already in its simplest form, for example:

[tex]\frac{1}{2}[/tex]

and do this;

[tex]\frac{1 \times x}{2 \times x}[/tex]

times the denominator and numerator with any number, but must be the same! and do it 15 times, like so;

[tex]\frac{1 \times 2}{ 2 \times 2} , \frac{1 \times 3}{2 \times 3}, \: \: continue...[/tex]

and u will get this:

[tex]\frac{1}{2} =\frac{2}{4}, \frac{3}{6}, \frac{4}{8}, \frac{5}{10}, \frac{6}{12}, \frac{7}{14}, \frac{8}{16}, \frac{9}{18}, \frac{10}{20}, \frac{11}{22}, \frac{13}{26}, \frac{14}{28}, \frac{15}{30}, \frac{16}{32}, \frac{17}{34}[/tex]

To create equivalent fractions, you choose a simple fraction like 1/2. You then multiply both the numerator and denominator of this fraction by the same number to get a new fraction. You can do this 15 times to get 15 different equivalent fractions.

The subject is finding equivalent fractions. Let's start with a simple fraction like 1/2. Equivalent fractions are just multiples of this fraction. So, we multiply both the numerator (top number) and the denominator (bottom number) by the same number to get an equivalent fraction. Here are some examples:

Following this method, you can create 15 different equivalent fractions for 1/2. Remember that the fractions should be in their simplest form, meaning that there's no number (except for 1) that could divide both the numerator and denominator evenly.

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