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lara [203]
3 years ago
5

Which fraction is equivalent to -7/8? A. 8/-7 B. 7/-8 C. -7/-8 D. 7/8

Mathematics
1 answer:
Galina-37 [17]3 years ago
7 0

Answer:

B. 7/-8

Step-by-step explanation:

it doesn't matter which number the negative sign is on, the result stays the same either way.

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The dimensions of a rectangular prism are shown below: Length 2 1/4 ft | width 1 ft | height 1 1/4 ft.
zysi [14]

Answer:

  • See below

Step-by-step explanation:

<u>Dimensions given:</u>

  • l = 2 1/4 ft, w = 1 ft, h = 1 1/4 ft

A small cube has side of 1/4 ft

Find the number of small cubes can fit in each dimension of the prism.

<u>Length</u>

  • 2 1/4 : 1/4 = 9/4 * 4 = 9

<u>Width</u>

  • 1 : 1/4 = 1 *4 = 4

<u>Height</u>

  • 1 1/4 : 1/4 = 5/4 * 4 = 5

Part A

<u>Number of small cubes would be:</u>

  • 9*4*5 = 180

Part B

<u>Each small cube has volume:</u>

  • V = (1/4)³ = 1/64 ft³

The volume of the prism in terms of small cubes is 180 as we found above.

<u>The volume in terms of unit cube:</u>

  • V = 180*1/64 = 180/64 = 2 52/64 = 2 13/16 ft³ or 2.8125 ft³
4 0
2 years ago
A commercial airplane is flying at an elevation of 15,000 feet and ascends to an elevation of 20000 feet at a rate of 1250 feet
Ksju [112]

Answer:

4 minutes

Step-by-step explanation:

Put it into an equation

20000 = 1250x + 15000

Subtract 15000 from both sides

5000 = 1250x

Divide both sides by 1250

4 = x

6 0
2 years ago
Multiply the following complex numbers: (8-3i)(6+5i)
nika2105 [10]

The a answer is 8-13i

3 0
3 years ago
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Solve the system of equations by substitution<br> 5x +y = 36<br> y = 4x
natali 33 [55]

Step-by-step explanation:

The answer is mentioned above.

7 0
3 years ago
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Can anyone help with problem 9.9 in the middle pls
ELEN [110]

Answer:

Angle 1: 53

Angle 2: 72

Angle 3: 55

Angle 4: 127

Angle 5: 53

Angle 6: 66

Angle 7: 125

3 0
3 years ago
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