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2 years ago

Please help!!!! Show work if possible

Mathematics

1 answer:

Tamiku [17]2 years ago

5 0

Answer:

900°

Step-by-step explanation:

Sum of angles= 180(n-2)

Where n= number of sides of polygon.

$n=7\\Sum \ of \ Angles=180(7-2)\\=900$

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Joey has 8 pairs of socks in his drawers five of them are white what percent of colored socks does he have

Vedmedyk [2.9K]

Answer: 62.5%

Step-by-step explanation:

first, set up the proportion. 5/8 = ?/100 in order to solve, divide 100 by 8.

the answer is 12.5. next you multiply it by 5 to get 62.5. fill it in to your equation, and you get 5/8 = 62.5/100. turn the second fraction into a percent, then you have your answer. 62.5%

3 0

2 years ago

What is the least perimeter of a rectangle with an area of 39 square feet

Gekata [30.6K]

Ths answer is 80 squared feet

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2 years ago

3/8 x 2/6 x 4/8 x 5/12

Evgesh-ka [11]

Answer:

$\frac{5}{192}$

Step-by-step explanation:

$\frac{3}{8} * \frac{2}{6} * \frac{4}{8} * \frac{5}{12}$

Multiply all numerators

3 * 2 * 4 * 5 = 6 * 20 = 120

Multiply all denominators

8 * 6 * 8 * 12 = 48 * 96 = 4,608

$\frac{120}{4608}$

Simplify

$\frac{5}{192}$

Hope this helps :)

3 0

2 years ago

The volume of a cylinder is

Dima020 [189]

The volume of a cylinder is equal to $\frac{1}{3}\pi r^{2} h$ , where r is the radius of the cylinder and h is its height.

324 = $\frac{1}{3}\pi r^{2} h$

324 = $\frac{1}{3}$ x 3.14 x $r^{2}$ x 1

309.55 = $r^{2}$

r = $\sqrt{309.55}$

r = approx. 17.59 inches

I hope this answer helped you! If you have any questions, feel free to ask away.

7 0

2 years ago

WILL GIVE BRAINLIEST, THANKS AND 5 STARS! PLEASE HELP! LOTS OF POINTS

irina [24]

First graph it

Maximum height is the y coordinate of vertex

(2,144)

Max height

144m

Time is the x coordinate of vertex

y is 0

$\\ \rm\Rrightarrow -16t^2+64t+80=0$

x intercepts are the solutions

(-1,0)U(5,0)

Take it positive

t=5s

put in function

y=-16(1)+64+80=-16+144=128ft

8 0

1 year ago