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Natali5045456 [20]
3 years ago
13

A class has 10 boys and 12 girls. in how many ways can a committee of four be selected if the committee can have at most two gir

ls?
Mathematics
1 answer:
V125BC [204]3 years ago
5 0
<span> C(12,0)C(10,4)+C(12,1)C(10,3)+C(12,2)C(10,2) = (1)(210)+(12)(120)+(66)(45) = 210+1440+2904 = 4554 Answeer: 4554 ways</span>
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We have 8 yards of wraping paper. if we use 2 feet for each present how many present can we wrap
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We can wrap 12 presents. multiply the number of yards by the feet.
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3 years ago
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The sides of a rectangle have length x+ 2 and width x -5. Which equation describes the area, A, of the rectangle in terms of x?​
Yakvenalex [24]

Answer:

The area in factored form is A=(x+2)(x-5).

The area in standard form is A=x^2-3x-10.

Step-by-step explanation:

The area of a rectangle is length times width.

So the area here is (x+2)(x-5).

They are probably not looking for A=(x+2)(x-5) because it requires too little work.

They probably want A in standard form instead of factored form.

Let's use foil:

First x(x)=x^2

Outer: x(-5)=-5x

Inner: 2(x)=2x

Last: 2(-5)=-10

---------------------Adding together:  x^2-3x-10.

The area in factored form is A=(x+2)(x-5).

The area in standard form is A=x^2-3x-10.

4 0
2 years ago
Are these expressions equivalent? (Show work)<br> 14x+10+2x and 5x+3x+10+8x
balu736 [363]

Step-by-step explanation:

14x+10+2x

16x+10. Answer 1

5x+3x+10+8x

16x+10. Answer 2

So, both Answers are same, So the expressions are equivalent...

3 0
2 years ago
A geometry student wants to draw a rectangle inscribed in the ellipse
IceJOKER [234]
What is the question?
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3 years ago
Jo is thinking of a number. Four less than 9 times the number is 176. Find Jo’s number
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Answer:

Jo's Number is 20.

Step-by-step explanation:

4 - ( 9 x ? ) = 176.

9 x 20 = 180.

9 x 20 = 180, then subtract 180 by 4.

180 - 4 = 176.

Therefore, Jo's number is 20.

5 0
3 years ago
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