Q1:A circle has an area of 64π square inches. Which best represents the circumference of the circle?
Q2:The circumference of a circle is 20π units. What is the area of the circle in terms ofπ ?

5x10^-10 is the answer

Answer:

(k + 0.04)(k - 0.04)

Step-by-step explanation:

a² - b² = (a + b)(a - b)

k² - 0.0016 = k² - (0.04)²

                  = (k + 0.04)(k - 0.04)

Hint: 0.0016 = [tex]\frac{16}{1000}=\frac{4^{2}}{100^{2}}=(\frac{4}{100})^{2} = (0.04)^{2}[/tex]

Answer:

No

Step-by-step explanation:

y=x^2 is a sideways parabola and therefore not a function

Answer:

yeah

Step-by-step explanation:

Like based on existence theorem, for a rational number x there is a rational numner y, x^2=y

Answer:

36mimutes

Step-by-step explanation:

Answer:

the answer is b

Step-by-step explanation:

Answer:

x is greater than or equal to 40

Step-by-step explanation:

Answer:

Daniel is rollerblading at 15 miles per hour

Daniel can go 3 miles in 12 minutes so we do 12÷3 to find out how many minutes it takes to go 1 mile which is 4 now we do 60÷4 to get 15

Alternatively we could do 60÷12 to get 5 then do 3×5 to get 15

Step-by-step explanation:

Answer:

90

Step-by-step explanation:

0.36*250 = 90

Answer:

I'm in 10th grade so I'll see what I can do and will answer to the best of my ability.

Step-by-step explanation:

What Julie did wrong was, she did simplify she just did it wrong. She used 4*8 which does equal 32 but 8 can't be simplified anymore than that. If she would of used 2*16 then her answer would be right.

Hope this helps!

Answer:

[tex]5 \sqrt{18} - \sqrt{32} \\ = 5 \sqrt{9 \times 2} - \sqrt{4 \times 4 \times 2} \\ = 5 \times 3 \times \sqrt{2} - 2 \times 2 \times \sqrt{2} \\ = 15 \sqrt{2} - 4 \sqrt{2} \\ = \boxed{11 \sqrt{2} }[/tex]

Answer:

70

Step-by-step explanation:

70 students have a skateboard.

A ratio or value that may be stated as a fraction of 100 is called a percentage. And it is represented by the symbol '%'.

Total students are 125.

And to find the percentage of 56, we have to take the fraction.

56% of 125 students:

56 x 125 /100

= 7000/100

= 70

Therefore, 70 students have a skateboard.

To learn more about the percentage;

https://brainly.com/question/24159063

#SPJ5

Answer:4 gallons of water ... 30 plants

x gallons of water = ? ... 45 plants

If you would like to know how much water will it take to water 45 plants, you can calculate this using the following steps:

4 * 45 = x * 30

180 = 30 * x    /30

x = 180 / 30

x = 6 gallons of water

Result: You will use 6 gallons of water to water 45 plants.

Step-by-step explanation:

Answer:

B. (1, 0)

Step-by-step explanation:

9514 1404 393

Answer:

  B.  (1, 0)

Step-by-step explanation:

You can count grid squares on the graph to find the point that is 4 of the 8 units horizontally between the points, and 2 of the 4 units vertically between the points. That will be ...

  C +(4, 2) = D -(4, 2) = (1, 0)

__

Or, you can use the midpoint formula:

  M = (C +D)/2

  M = ((-3, -2) +(5, 2))/2 = (-3+5, -2+2)/2 = (2, 0)/2

  M = (1, 0)

The midpoint is (1, 0).

Answer:

[tex]V=336\ in^3[/tex]

Step-by-step explanation:

Triangular Prism

Given a triangular prism of base area A and height H, its volume is obtained with the formula:

V = AH

The area of the base is calculated as follows:

[tex]A = \frac{WL}{2}[/tex]

Where W is the width and L is the length. Both dimensions must be perpendicular.

The triangle of the base has a hypotenuse equal to 10 in and the width is 6 in, the length is calculated by:

[tex]L=\sqrt{10^2-6^2}[/tex]

[tex]L=\sqrt{100-36}=\sqrt{64}[/tex]

L = 8 in

The area is:

[tex]A = \frac{6*8}{2}[/tex]

[tex]A = 24\ in^2[/tex]

Finally, the volume is:

[tex]V = 24\ in^2*14\ in[/tex]

[tex]\boxed{V=336\ in^3}[/tex]

Answer:

Option C

Step-by-step explanation:

To test a graph whether it represents a function or relation we conduct a vertical line graph.

If the vertical line intersect the graph at two different points, graph represents a relation only.

By analyzing the given graph with the vertical line test,

Since, a vertical line (x = -4) intersect the graph at two points (y = -1 and y = 5),

Given graph represents a relation only.

Option C is the answer.

Answer:

Right, Wrong, Right, Wrong, Right.

Step-by-step explanation:

Answer:

5 x ^2  −  3 x  +  2  =  3 x  −  4 x  −  1  =  − x  −  1

Can't explain, cause it will be more confusing.

Answer: -6<x<5

Step-by-step explanation:

Given

Length is 3 m more than three times the width

Suppose width is x

So, the length is 3x+3

The area of a rectangle is  [tex]length\times width[/tex]

Area= [tex](3x+3)x<90[/tex]

[tex]\Rightarrow 3x^2+3x-90<0\\\Rightarrow x^2+x-30<0\\\Rightarrow x^2+6x-5x-30<0\\\Rightarrow (x+6)(x-5)<0\\\Rightarrow -6<x<5[/tex]

Answer:

idek im doing this for points for my test

Step-by-step explanation:

Answer:

3 x − 7

Step-by-step explanation:

Answer:

The a value is 4

Step-by-step explanation:

Answer:

11

Step-by-step explanation:

[tex]c=\sqrt{a^{2} + b^{2} } \\14 = \sqrt{9^{2}+ b^{2} } \\14 = \sqrt{81 + b^{2} } \\14^{2} = 81+b^{2} \\196 = 81 + b^{2} \\81 + b^{2} = 196\\b^{2} = 196-81\\b^{2} = 115\\b = \sqrt{115} \\b = 10.72\\b = 11[/tex]

Answer:

(2) is the correct answer

Step-by-step explanation:

if you multiply the given equation by 3 you get answer (2):

3(4x - 3y) = 3(12)

12x - 9y = 36

Answer:

(2) 12x-9y=36

Step-by-step explanation:

4x-3y=12  (×3)

12x-9y=36

Answer:

15 = x

Step-by-step explanation:

Answer:

12.5 pie , 39.25 using pie=3.14, and 39.28 to be exact

Step-by-step explanation:

BTW n=pie

10in= Diameter

5in=Radius

Area=n5^2

= 25n/2

=12.5n

12.5 times 3.14= 39.25

22/7 times 12.5= 39.2857143

Answer:200 ounces

Step-by-step explanation: multiply 12.5 by 16