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yarga [219]
3 years ago
10

What is the value of 2x^-2y^-2 for x = 3 and y = 2? a) 1/18 b) 72 c) 2(-6)^-4 d) 1/648

Mathematics
1 answer:
sladkih [1.3K]3 years ago
8 0
2x^-2y^-2 = 2/x^2y^2 = 2/(2)^2 x (3)2 = 2/4 x 9 = 2/36 = 1/18
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A right rectangular prism is 5 and 1/4 inches wide 12 and 1/2 inches long and 4 inches tall what is the volume of the prism
Goryan [66]

Answer:

29 in ^3

Step-by-step explanation:

6 sides

2 of which are smaller than the other 4.

12 x 1/2 x 4 = 4 longer sides

5 x 1/4 x 4 = 2 shorter sides

12 x 1/2 = 6

6 x 4 = 24

5 x 1/4 = 1.25

1.25 x 4 = 5

5 + 24 = 29

29 in ^3

8 0
3 years ago
Sara worked 24 hours last week. Joan worked for hours less than Sara, and Erin worked half as many hours as Joan. How many hours
Vaselesa [24]
Sara worked 1 day last week
Joan worked for 20 hours last week
And Erin worked for 10 hours last week
3 0
3 years ago
Bob says that he can find the area of the triangle below using the formula: A = <img src="https://tex.z-dn.net/?f=%5Cfrac%7B1%7D
Goryan [66]

Answer:

No.

Step-by-step explanation:

No, Bob is not correct.

The formula he's using is the following:

A=\frac{1}{2} ab\sin(C)

The important thing here is that the angle is between the two sides.

In the given triangle, 120 is not between 8 and 18. Therefore, using this formula will not be valid.

Either Bob needs to find the other side first or find the angle between 8 and 18.

8 0
3 years ago
If 1 cup of milk is added to a 3-cup mixture that is 2/5 flour and 3/5 milk, what percent of the 4-cup mixture of milk?
Marta_Voda [28]
This is the concept of algebra, the percentage of Milk in the 4 cup mixture will be found as follows;
the ratio of milk to mixture after 1 cup was added to 3-cups was:
1/3
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14/15*100
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5 0
4 years ago
WILL GIVE BRAINLEIST
kati45 [8]
Its D because its naming the objects
7 0
3 years ago
Read 2 more answers
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