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2 years ago

HELP PLS THE TEST IS DUE TODAY

Mathematics

1 answer:

Ipatiy [6.2K]2 years ago

4 0

Answer:

it what context is the

Step-by-step explanation:

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What is the unit rate?? Seven notebooks at the school supply store cost $4.76.

Katena32 [7]

You divide 1 by 4.76 and you get 0.21 as your main answer

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3 years ago

Read 2 more answers

7- a. What is the radius of the circle with center (3,10) that passes through (12,12)?

loris [4]

Answer: a. Radius of circle = $\sqrt{85}$

b. The equation of this circle : $(x-3)^2+(y-10)^2=85$

Step-by-step explanation:

Given : Center of the circle = (3,10)

Circle is passing through (12,12).

a. To find the radius we apply distance formula (∵ Radius is the distance from center to any point ion the circle.)

Radius of circle = $\sqrt{(12-3)^2+(12-10)^2}$

Radius of circle = $\sqrt{(9)^2+(2)^2}=\sqrt{81+4}=\sqrt{85}$

i.e. Radius of circle = $\sqrt{85}$

b. Equation of a circle = $(x-h)^2+(y-k)^2=r^2$ , where (h,k)=Center and r=radius of the circle.

Put the values of (h,k)= (3,10) and r= $\sqrt{85}$ , we get

$(x-3)^2+(y-10)^2=(\sqrt{85})^2$

$(x-3)^2+(y-10)^2=85$

∴ The equation of this circle : $(x-3)^2+(y-10)^2=85$

6 0

3 years ago

Barry bought 2 1/2 pounds of lunch meat. He ate 1/10 of the lunch meat when he got home. Which equation shows how many pounds of

enyata [817]

Answer:

1/4

Step-by-step explanation:

2 1/2 * 1/10 = 1/4

8 0

2 years ago

Find the surface area of the two following figures. Show all your work.

Misha Larkins [42]

Answer:

First shape: 366 in^2

Second shape: 376 in^2

Pretty sure these are correct, hope this helps!

7 0

2 years ago

Solve this using square roots and show your work please<br> 4x^2-256=0

mamaluj [8]

Answer:

x = ± 8

Step-by-step explanation:

Given

4x² - 256 = 0 ( add 256 to both sides )

4x² = 256 ( divide both sides by 4 )

x² = 64 ( take the square root of both sides )

x = ± $\sqrt{64}$ = ± 8

Solutions are x = - 8, x = 8

5 0

3 years ago