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1 year ago

Find the least common denominator for these two rational expressions. 8/n n/7n²

Mathematics

1 answer:

Serga [27]1 year ago

5 0

Answer:

7n^2

Step-by-step explanation:

Multiply 8/n by 7n/7n to get 56n/7n^2

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What is the slope of a line perpendicular to the line whose equation is 3x-3y=54. Fully simplify your answer.

padilas [110]

Perpendicular = opposite sign and reciprocal slope
Make equation into y = mx + b
Add 3y to both sides
3y + 54 = 3x
Subtract 54
3y = 3x - 54
Divide by 3
y = x - 18
The slope is 1
Make it negative and reciprocal
= -1/1 = -1

Solution: the slope will be -1

7 0

2 years ago

-2 1/4 divided by (-1 1/2)

Gnoma [55]

Answer:

1.5

Step-by-step explanation:

6 0

2 years ago

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Find the area of the triangle when b=8 and h=14

babunello [35]

Answer:

56 square units

Step-by-step explanation:

The formula for the area of a triangle of base b and height h is:

A = (1/2)(b)(h)

Here, that area is A = (1/2)(8)(14) = 56 square units

4 0

2 years ago

Cos60° = x divided by 16

777dan777 [17]

Answer:

x = 8

Step-by-step explanation:

cos60° = x/16

1/2 = x/16

2x = 16

x = 16 : 2

x = 8

6 0

2 years ago

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Help plssssssss, thank you

IRINA_888 [86]

Answer:

x = 14

Step-by-step explanation:

Given

- $\frac{1}{5}$ (x - 4) = - 2

Multiply both sides by 5 to eliminate the fraction

- (x - 4) = - 10 ← distribute parenthesis by - 1

- x + 4 = - 10 ( subtract 4 from both sides )

- x = - 14 ( multiply both sides by - 1 )

x = 14

6 0

3 years ago