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Snezhnost [94]
3 years ago
9

Kevin has just purchased a small rectangular fish tank that holds 904.5 milliliters of water. The tank has a length of 15 cm and

a
height of 9 cm
What is the width of the fish tank?
(1 milliliter is equal to 1 cubic centimeter)
Mathematics
1 answer:
Nitella [24]3 years ago
5 0

Answer:

A stone is thrown straight up from the edge of a roof, 750 feet above the ground at a speed of 14 feet per second. A) Remembering that the acceleration due to gravity is -32 feet per second squared, how high is the stone 2 seconds later? B) At what time does the stone hit the ground? C) What is the velocity of the stone when it hits the ground?

Step-by-step explanation:

A stone is thrown straight up from the edge of a roof, 750 feet above the ground at a speed of 14 feet per second. A) Remembering that the acceleration due to gravity is -32 feet per second squared, how high is the stone 2 seconds later? B) At what time does the stone hit the ground? C) What is the velocity of the stone when it hits the ground?

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The R-value of insulation is a measure of its ability to resist heat transfer. For fiber-glass insulation, 3½ inches is rated at
Solnce55 [7]

Answer:

R = \dfrac{16}{5}t + \dfrac{1}{5}

where R is the R-value and t is the thickness in inches.

Step-by-step explanation:

We are given the following in the question:

The  R-value of fiberglass insulation and f its thickness have a linear relation.

Let R be the R-value and t be the thickness. Then, the equation can be written as:

R = at + b

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When t = 3.5, R = 11

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When t = 6, R = 19

19 = 6a + b

Solving the two equation, using the elimination method, we have,

19-11 = 6a + b-(3.5a + b)\\8 = 2.5a\\\\\Rightarrow a = \dfrac{16}{5}\\\\11 = 6(\dfrac{16}{5}) + b\\\\\Rightarrow b = \dfrac{1}{5}

Thus, the linear relationship is given by:

R = \dfrac{16}{5}t + \dfrac{1}{5}

where R is the R-value and t is the thickness in inches.

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Jim earned $140 during the summer doing chores. He bought 2 sets of pens worth $25 each using his chore money. How much money wa
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