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aksik [14]
3 years ago
13

Your mom suggested ten different choices for you to eat for lunch over the next week at school. How many different ways can you

choose your school lunch? A. 120 B. 252 C. 2,502 D. 30,240
Mathematics
1 answer:
Serggg [28]3 years ago
5 0

Answer:

B. 252

Step-by-step explanation:

To find the answer, you have to use the formula to calculate the number of combinations as in this case, the order in which the objects are selected doesn't matter:

nCr=n!/r!(n-r)!

n= number of sample points: 10

r= number of sample points in each combination: 5

10C5= 10!/5!(10-5)!

10C5= 10!/5!*5!

10C5= 252

According to this, the answer is that you have 252 different ways to choose your school lunch.

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musickatia [10]

9514 1404 393

Answer:

  m∠Y = 40°

Step-by-step explanation:

The sum of complementary angles is 90°. If we let s and y represent m∠S and m∠Y, respectively, the angle measures in degrees satisfy ...

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  (4y -110) +y = 90 . . . . . . . . substitute for s

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The measure of angle Y is 40°.

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2 years ago
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GuDViN [60]

Step-by-step explanation:

I didn't need the other angles, but right of the bat you can tell it's two right triangles back to back.

<em>y </em> has to be 90° , as you have noticed they already gave you 70° on the right side of the shape meaning if you were to add 90 which is why plus 70 what would that give you? 160.

the total interior for a triangles angles has to be 180°. if you do the math 180 - 160 you get the leftover 20° for x.

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dezoksy [38]

Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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