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1 year ago

I need help on 3 the explanation is above on how to do it. NOT A TEST

Mathematics

1 answer:

3241004551 [841]1 year ago

3 0

64 people were surveyed and 16 of them chose Mystery, so the proportion of people who chose Mystery is given by:

$\frac{16}{64}=\frac{4\times4}{4\times16}=\frac{1}{4}$

Therefore, the answer is option a: 1/4

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Write an equation for the translation of x^2+y^2=25 by 7 units left and 2 units down

soldi70 [24.7K]

Your equation is a circle where the center is the origin (0, 0) and the radius is 5. With the translation, the new center is (- 7, - 2). Radius stays the same.

Your new equation is:

(x + 7)² + (y + 2)² = 25

4 0

3 years ago

A square napkin is folded in half on the diagonal and placed on the diameter of a round plate (see diagram below). If the folded

Crank

Answer:

$A=81(\pi-1)\ in^2$

Step-by-step explanation:

step 1

Find the area of the plate

The area of a circle is given by the formula

$A=\pi r^{2}$

we have

$r=18/2=9\ in$ ---> the radius is half the diameter

substitute

$A=\pi (9)^{2}\\A=81\pi\ in^2$

step 2

Find the area of the square napkin folded (is a half of the area of the square napkin)

we know that

The diagonal of the square is the same that the diameter of the plate

Applying Pythagorean theorem

$D^2=2b^2$

where

b is the length side of the square

we have

$D=18\ in$

substitute

$18^2=2b^2$

solve for b^2

$b^2=162\ in^2$ -----> is the area of the square

Divide by 2

$162/2=81\ in^2$

step 3

Find the area of the space on the plate that is NOT covered by the napkin

we know that

The area of the space on the plate that is NOT covered by the napkin, is equal to subtract the area of the square napkin folded (is a half of the area of the square napkin) from the area of the plate

$A=(81\pi-81)\ in^2$

simplify

$A=81(\pi-1)\ in^2$

8 0

3 years ago

F(n) = -5n<br><br> what is n?

Alika [10]

6n because 5n +n =6 its probably wrong so hope its right??????

8 0

3 years ago

Find the volume of the box in cubic inches.

LenKa [72]

｡☆✼★ ━━━━━━━━━━━━━━━ ☾

1 foot is 12 inches

Thus 2 feet is 24 inches

Substitute values into equation:

volume = 24 x 24 x 24

volume = 13824

Your answer is option D

Have A Nice Day ❤

Stay Brainly! ヅ

- Ally ✧

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3 0

3 years ago

What is the value of h?

algol [13]

The two angles shown are supplementary angles, meaning that there sum equals 180. Knowing this you can set up an equation and solve for h...

3h + 18 + 15h = 180

Combine like terms

18h + 18 = 180

Subtract 18 to both sides

18h + (18 -18) = 180 - 18

18h = 162

Isolate h by dividing 18 to both sides

18h/18 = 162 /18

h = 9

Hope this helped!

8 0

3 years ago

Read 2 more answers