3 years ago

A 4ft piece of pipe needs to be divided into pieces that are 2/3ft long. How many pieces are made? How many remaining?

Mathematics

1 answer:

Katen [24]3 years ago

3 0

4ft divided by 2/3ft

4/1 divided by 2/3

4/1 times 3/2 is 12/2 or 6 pieces, 0 remaining.

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Jake leaned a 12-foot ladder against his house. If the Angle formed by the ladder and the ground is 68, how far from the base of

zhuklara [117]

Answer:

$4.50\ ft$

Step-by-step explanation:

see the attached figure to better understand the problem

In the right triangle ABC

$cos(A)=\frac{AC}{AB}$ -----> the cosine is the adjacent side to angle A divided by the hypotenuse

substitute the values and solve for x

$cos(68\°)=\frac{x}{12}$

$x=12*cos(68\°)=4.50\ ft$

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3 years ago

Which of the following sets of numbers could represent the three sides of a right triangle?

Natalija [7]

Answer:

{42,56,70}

Step-by-step explanation:

a^2 + b^2 = c^2

42^2 = 1764

56^2 = 3136

70^2 = 4900

3136 + 1734 = 4900

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2 years ago

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B) Find the value of 2^-3 x 3^-2

jekas [21]

Answer:

1/72

Step-by-step explanation:

2^-3 = 1/2^3 = 1/8

3^-2 = 1/3^2 = 1/9

1/8 x 1/9 = 1/72

7 0

3 years ago

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3(n+4)=21 what does n =?

Brilliant_brown [7]

Answer:

Step-by-step explanation:

3(n + 4) = 21

3n + 12 = 21

3n = 21 - 12 = 9

n = 3.

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3 years ago

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Where the graphs of supply and demand functions intersect the market is in equilibrium

Setler [38]

Yes because i took this in economics class

5 0

4 years ago