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satela [25.4K]
1 year ago
15

REPOST 100 POINTS+BRAINLIEST 8th grade math- counting principle - 7 short questions

Mathematics
2 answers:
madreJ [45]1 year ago
7 0
I only have one for 12
12, 21
24, 42
36, 63
48, 84
pashok25 [27]1 year ago
7 0

Answer:

792 groups

Step-by-step explanation:

5 people can be in a group. There's 12 people. So we can just use combination.

12C5. = 12 * 11 * 10 *9 * 8 = 792

Also, just post one question at a time. We aren't allowed to post multiple answers.

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Find f(x) = 4*, when x = 1/2
faust18 [17]

Answer:

f=8

Step-by-step explanation:

fx0.5=4

f=4x2

f=8

5 0
3 years ago
The length of a side of the base of a square pyramid is 10 inches. The height of each triangular face is 12 inches. What is the
galben [10]

Answer:

it's D

Step-by-step explanation:

8 0
2 years ago
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the width of a rectangle is 5 inches and the height is 10 inches what is the perimeter of the shaded rectangle
andrew-mc [135]
So, you should add the heighth twice and add the width twice too, then add those two together to get your answer.
7 0
2 years ago
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A rectangular cake has a length of 22 1/2 inches and a width of 10 inches. How many whole, square pieces of cake with side lengt
faltersainse [42]
Well, we need to find the area of the cake.  22.5 times 10 is 225.  That is the area then we need to find the area of each piece of cake.  2.5 times 2.5 is 6.26.
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5 0
3 years ago
X^(2)+x^(2)=128<br> or<br> x^2+x^2=128
Dvinal [7]

Answer:

Step-by-step explanation:

x^2 + x^2 = 128                 Normally you don't do this but rewrite the question

1x^2 + 1x^2 = 128

You actually do use 1 + 1 = 2 First time I've ever done that.

2x^2 = 128                         Divide by 2

2x^2/2 = 128 / 2

x^2 = 64                            Take the square root of both sides

sqrt(x^2)= sqrt(64)

x = 8

4 0
2 years ago
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