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Mkey [24]
3 years ago
12

Which models selecting a combination of 3 objects taken from a group of 8 items?

Mathematics
1 answer:
Natalka [10]3 years ago
6 0
The correct answer would be C.) 8C3 = 8!/(5!)3!.
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How to do: 4(x+7)=2(x+7)
andre [41]
4(x+7) becomes 4x+28 you multipli the 4 in parentheses ans 2(x+7) becomes 2x+14

4x+28=2x+14 you move the x termes to the left and other numbers to the right look:

4x-2x=14-28 when you change the sides always change the sign +or-
2x=-14
2x/2=-14/2
X=-7
3 0
3 years ago
Read 2 more answers
Find the missing coefficient (4d—4)(3d—2)=12d^2+ []d+8
sergij07 [2.7K]
<span>(4d-4)(3d-2)=12d^2 + []d + 8

Using FOIL method:
4d x 3d = 12d^2
4d x  -2 = -8d
-4 x 3d = -12d
-4 x -2 = 8

Adding common terms, we have:
-8d + -12d = -20 d

The missing coefficient is -20.</span>
8 0
3 years ago
Can someone help with my homework please
EleoNora [17]
B is the answer to this problem
8 0
3 years ago
Suppose an auto racer won a 400 mile race with a time of ​1:41​:58. at one point the racer was 40 miles closer to the finish tha
enot [183]
400/2 = 200
200 + 20 = 220
200 - 20 = 180
Answer: He had gone 220 miles.

He was 180 miles from the finish and 220 from the start, so he was 40 miles closer to the finish than to the start.
7 0
3 years ago
Sammy drew a rectangle that was w inches wide. The length was 4 inches more than the width. Which expression below represents th
LekaFEV [45]
4w +8. C.

It’s 4 * width for perimeter and two of the sides are longer by 4in so 2*4=8
7 0
3 years ago
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