3 years ago

How many ways can 7 students come in first, second, and third place in a math contest? Omg one student can earn each place

Mathematics

1 answer:

Lisa [10]3 years ago

5 0

I got 441 times using this formula 7x3^2=x

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Given an expression can you write an equivalent form of the expression and explain the properties you used?

weeeeeb [17]

What is the expression? Tell me and I will help you.

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3 years ago

What is the angle measure of an arc bounding sector with an area of 5pie square miles?

Snowcat [4.5K]

if the diameter is 20, the its radius must be half that or 10.

$\textit{area of a sector of a circle}\\\\ A=\cfrac{\theta \pi r^2}{360}~~ \begin{cases} r=radius\\ \theta =\stackrel{degrees}{angle}\\[-0.5em] \hrulefill\\ A=5\pi \\ r=10 \end{cases}\implies \begin{array}{llll} 5\pi =\cfrac{\theta \pi (10)^2}{360}\implies 5\pi =\cfrac{5\pi \theta }{18} \\\\\\ \cfrac{5\pi }{5\pi }=\cfrac{\theta }{18}\implies 1=\cfrac{\theta }{18}\implies 18=\theta \end{array}$

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2 years ago

I’ll give brainliest to whoever answers thiss

andrey2020 [161]

Answer:

21.25

Step-by-step explanation:

diagonal is 21.25

the area is 216.75

the perimeter is 59.5

6 0

2 years ago

A television screen, length is 16 1/2 inches, width is w inches, and area is 462 square inches. Select all THREE equations that

tatiyna

Answer:

it's B, C, and D

Step-by-step explanation:

A. w ⋅ 462 = 16 1/2

not A

w * a ≠ l

B. 16 1/2 ⋅ w = 462

is B

l * w = a

C. 462 ÷ 16 1/2 = w

is C

a / l = w

D. 462 ÷ w = 16 1/2

is D

a / w = l

E. 16 1/2 ⋅ 462 = w

not E

l * a ≠ w

3 0

2 years ago

A shipping company charges a $6 flat fee for a package, plus a fee based on the weight of the package. The company charges $1.25

Musya8 [376]

Answer: 11.2 pounds is the max weight of the package he can have.

Step-by-step explanation: $20 - $6 is $14. $14 divided by 1.25 is 11.2.

8 0

3 years ago