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BlackZzzverrR [31]
3 years ago
12

What number divided by -7 is equal to -15?

Mathematics
1 answer:
Ilia_Sergeevich [38]3 years ago
4 0
105 is the number
......
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The density of a certain material is such that it weighs 9 kilograms for every 7 cubic feet of volume. Express this density in p
Vadim26 [7]

Answer:

1.641× 10^-3 pounds/ cubic inch

Step-by-step explanation:

Density= mass / volume

Mass of the material= 9 kilograms

Volume= 7 cubic feet

Density= 9/7= 1.286 kg/ ft^3

Density= 1.286 kg/ ft^3

To Convert to pounds per inch

1 kg/ ft^3 = 0.00128 pound / cubic inch

1.286 kg/ ft^3 = X pounds/ cubic inch

X=( 1.286 × 0.00128)

= 0.0016407087 pounds/ cubic inch

= 1.641× 10^-3 pounds/ cubic inch

Hence,this density in pounds per inch is 1.641× 10^-3 pounds/ cubic inch

5 0
3 years ago
What is the branch of mathematics developed by isaac newton called today?.
joja [24]

Answer: Calculus.

Step-by-step explanation: He created calculus.

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2 years ago
PLEASE HELP WILL GIVE BRAINLIEST!
ra1l [238]

Answer:

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Step-by-step explanation:

6 0
2 years ago
Evaluate: 2|x-4|+6 for x=2
Lina20 [59]
<h3>Answer:</h3>

10

<h3>Step-by-step explanation:</h3>

2|x -4| +6 \text{ for } x = 2 \\ 2|2 -4| +6 \\ 2|-2| +6 \\ 2(2) +6 \\ 4 +6 \\ 10

6 0
3 years ago
What are three ways a rectangle and a square are alike
k0ka [10]

-- Each has 4 sides.
-- Opposite sides of each are parallel.
-- Opposite sides of each have equal length.
-- Interior angles of each sum to 360 degrees.
-- Each is a special case of parallelogram.
-- Each has all interior angles equal.
-- Area of either one is (length) x (width).


3 0
3 years ago
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