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pshichka [43]
3 years ago
8

20 POINTS! WILL MARK BRAINIEST FOR FIRST CORRECT ANSWER!

Mathematics
2 answers:
Neko [114]3 years ago
5 0

Answer:

brainly.com/question/8182874

Step-by-step explanation:

Harrizon [31]3 years ago
3 0

Answer:

Area: 5π/2 in²

Perimeter: (3π+2) in

step-by-step explanation:

Area =

larger semicircle + small semicircle

= ½(pi × r1²) + ½(pi × r2²)

r1 = 2 in

r2 = 2/2 = 1 in

Area:

½(pi × 2²) + ½(pi × 1²)

= 2pi + ½pi

= 5pi/2 in²

Perimeter:

½(2pi × r1) + ½(2pi × r2) + r1

½(2pi × 2) + ½(2pi × 1) + 2

2pi + pi + 2

3pi + 2

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A sub sandwich shop offers 22 toppings to choose from. How many ways could a person choose a 4-topping sandwich?
ddd [48]

There are 7,315 different combinations, thus, the correct option is c

<h3>How many combinations are there?</h3>

If we have a set of N elements, the number of different combinations of K elements (such that K ≤ N) of these N elements that we can make is:

C(N, K) = \frac{N!}{(N - K)!K!}

In this case we have K = 4 and N = 22, replacing that, we get:

C(22, 4) = \frac{22!}{(22 - 4)!*4!} = \frac{22*21*20*19}{4*3*2*1} = 7,315

So there are 7,315 different combinations, thus, the correct option is c.

If you want to learn more about combinations:

brainly.com/question/11732255

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2 years ago
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AysviL [449]

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