I need help with this question

Answer:

64; 68; 78

Step-by-step explanation:

The diameter of a circle is the radius of the circle times two.

hope I helped you! :)

Answer:

Jade's work makes sense, Peter's does not.

Step-by-step explanation:

What's wrong with Peter's work:

Peter did not apply associative property correctly. You cannot change what is inside the parenthesis. He also shouldn't be using associative property to solve this equation because it just doesn't make sense!

Jade's work:

She applied distributive property correctly and multiplied each term in the parenthesis by 2. All of her processes are logical and make sense! I could go on, but everything is correct lol

Best of wishes mate!

Answer:

Jade because she followed the correct order of operations.

Step-by-step explanation:

Always remember your order of operations.

P - parentheses

E - exponents

M - multiplication

D - division

A - addition

S - subtraction

Please Excuse My Dear Aunt Sally is the common phrase used to remember though I find PEM-DAS just as easy to remember.

Answer:

what do u want to talk about

Step-by-step explanation:

Answer: B

Step-by-step explanation:

Answer:

1. 2(2w + w)

2. 2(2w) + 2(w)

Step-by-step explanation:

The formula to find the perimeter of a rectangle is [tex]2(l+w)[/tex], and we can easily apply it with this rectangle as 2(2w + w).

You can find another expression by simplifying 2(2w + w), which is 2(2w) + 2(w).

Answer:

Step-by-step explanation:

( 3x )° + ( 2x - 15 )° + 45° = 180°

5x + 30 = 180

5x = 150

x = 30

45° , 90° , 45°

The function of the brand new smartphone is an exponential function

The function that models the value of the phone x years after its puchase is f(x) = 1200(0.867)^x

The given parameters are:

Initial value (a) = $1200

Rate (r) = 13.3%

An exponential function that represents a decrement in value is illustrated using:

[tex]f(x) = a(1 - r)^x[/tex]

Substitute known values

[tex]f(x) = 1200(1 - 13.3\%)^x[/tex]

Evaluate the difference

[tex]f(x) = 1200(0.867)^x[/tex]

Hence, the function that models the value of the phone x years after its puchase is f(x) = 1200(0.867)^x

Read more about exponential functions at:

https://brainly.com/question/11464095

Answer:

Which substance dissolves in water?

Step-by-step explanation:

The student adds the same amount of substance of different types i.e., 10 grams to each beaker and the same amount of water i.e., 100 mL to each beaker. All of them are stirred and observations are taken down at the end of thirty minutes.

That is all that is mentioned in the question. The student is most likely measuring which substance dissolves in water. As all the other variables are kept constant.

So, the student here is most likely trying to answer the question "Which substance dissolves in water?"

Answer

6 inches

Step-by-step explanation:

Answer:

7m + 7n or 7(m + n)

The y-intercept is (0,2)

The slope is -5/2.

                [tex]\frac{y2-y1}{x2-x1}=\frac{-3-2}{2-0}=\frac{-5}{2} =-\frac{5}{2}[/tex]

Hope that helps!

Answer:

y- intercept is (0, 2)

Slope is -5/2

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Answer:

I think it is the second option

Step-by-step explanation:

The slope can be found with two sets of points

The points can be any points, but in this case I choose the point (-1,10) and (1,2)

Slope = [tex]\frac{y2-y1}{x2-x1} =\frac{10-2}{-1-1} =\frac{8}{-2} =-4[/tex]

The slope of the line that contains these points is -4.

Hope that helps!

Answer:

Step-by-step explanation:

42. -5  -2   -2   3   8

Answer:

18,000$ per pitch

Step-by-step explanation:

You divide 36,000,000 by 2,000 and there's your answer.

Answer:

L=7

W=13

Perimeter=40

Area=91

Step-by-step explanation:

Perimeter = 2L+2W

40=2(7)+2W

40=14+2W

-14  -14

26=2W

Divide both sides by 2

13=W

Area=L x W

7 x 13 = 91

Answer:

length = 7 units

width = 13 units

area = 91  square units

perimeter = 40 units

Step-by-step explanation:

What is the area of a rectangle?

  ❖ The area of a rectangle can be found by multiplying the length and

       width of the rectangle.

What is the perimeter of a rectangle?

  ❖ The perimeter of a rectangle is the sum of all sides- length and

       width. In this case, we're given the perimeter as 40 units and the

       length as 7 units, but the width is unknown. Formula to find

       perimeter of rectangle is 2(l + w) = P.

Solving for Width

Solving for Area

Answer:

y=2x+2

Step-by-step explanation:

the equation for slope intercept form is y=mx+b where b is the y intercept and m is the slope. From the graph we can see that where x is 0 y is 2 which makes 2 be the y intercept, and when x is 1 y is 4 which then you replace y for 4 and x for 1 which would be 4=m(1)+2,now u subtract 2 from both sides which leaves you with 2=m(1) and m times 1 is m so now your left with 2=m which means the slop is 2

Answer:

[tex]x = 40.[/tex]

Step-by-step explanation:

[tex]if \: \: y = kx \: then \\ k = y \div x \: and \: x = y \div k \\ so \: k = 0.6 \: and \: x = 40 \: when \: y \: is \: 24.[/tex]

Answer:

$5.55

Step-by-step explanation:

Given the following question:

We are given 4 dollars, 5 quarters, 4 nickels, and 1 penny.

[tex]1d=1d[/tex]
[tex]4=4[/tex]

[tex]1q=0.25[/tex]
[tex]0.25\times5=1.25[/tex]
[tex]5q=1.25[/tex]

[tex]1n=0.5[/tex]
[tex]0.5\times4n=0.20[/tex]
[tex]4n=0.20[/tex]

[tex]1p=0.1[/tex]

[tex]4+1.25+0.20+0.1=5.55[/tex]
[tex]=5.55[/tex]

The money together in total is worth "$5.55."

Hope this helps.

The number of boxes packed to fill the rectangular prism shaped container is: 80 boxes.

Volume = length × width × height.

Find the volume of one cube-shaped box:

Volume = 6 × 6 × 6 = 216 in³

Find the volume of one rectangular prism:

Volume = length × width × height = 24 × 24 × 30 = 17,280 in³.

Number of boxes packed to fill the rectangular prism shaped container = 17,280/216 = 80 boxes.

Learn more about volume of rectangular prism on:

https://brainly.com/question/12917973

Answer:

4+6+2(4)

10+8

18

the answer is 18

Answer:

18

Step-by-step explanation:

d+6+2d

4+6+2(4)

10+2(4)

10+8

18

Answer:

b = [tex]\frac{c}{a}\\[/tex]

Step-by-step explanation:

divide both sides by a

OR

bring the a over to the other side and put it under the c as the opposite of times is divide

Answer:

Step-by-step explanation:

The first bolt he buys has length 3/4 in plus 1/8 in, which comes out to

6/8 + 1/8 inch, or 7/8 inch.

The second bolt length cannot be determined using the information given:  "3/4 - inch shorter."  Ensure that you have copied down this probjem completely and accurately.

Answer:

(3, -1) or x=3, y=-1

Step-by-step explanation:

using substitution for y, the first equation becomes 3(-2x + 5) - 2x = -9

distribution of the 3 gets your equation to be -6x + 15 - 2x = -9

from here you combine like terms to get -8x + 15 = -9

from here it's just a two step equation

subtract 15 from both side to get -8x = -24

divide and get x = 3

substitute x in the equation for y to get y = -2(3) + 5

distribution gets you y = -6 + 5, which makes y = -1

to check your work you can just plug in the variables equivalents in the first equation, which upon doing you can see that the answer is indeed 3, -1

Answer:

(3,-1)

Step-by-step explanation:

Plato

Answer:

1.75x

Step-by-step explanation:

Answer:

[tex]\frac{ (x+3)^2}{9} + \frac{ (y-2)^2}{4} =1[/tex]

-step explanation:

The standard form of the given equation was reduced, representing an ellipse.

The given equation is:

[tex]4x^{2} +9y^{2} +24x-36y+36=0[/tex]

An equation is a statement that equates to two expressions.

We know the above equation represents an ellipse.

Rearranging the given equation

[tex]4x^{2} +24x+9y^{2} -36y+36=0[/tex]

[tex]4(x^2+6x)+9(y^{2} -4y)+36=0[/tex]

[tex]4(x^2+6x+9)+9(y^{2} -4y+4)=36[/tex]

[tex]4(x+3)^2+9(y-2)^2=36[/tex]

[tex]\frac{4(x+3)^2}{36}+\frac{9(y-2)^2}{36} =1[/tex]

[tex]\frac{(x+3)^2}{9}+\frac{(y-2)^2}{4} =1[/tex], which is the standard form of the given equation.

Hence, the standard form of the given equation was reduced.

To get more about an ellipse visit:

https://brainly.com/question/450229

Answer:

[tex] x = \frac{y - 3}{4}[/tex]

Step-by-step explanation:

[tex]y = 4x + 3 \\ y - 3 = 4x \\ \frac{y - 3}{4} = \frac{4x}{4} \\ x = \frac{y - 3}{4}[/tex]