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3 years ago

Find the difference 16-(-4) i need help ASAP

2 answers:

4 0

The answer is 20!
you need to change the subtraction sign to an addition sign and change -4 to a 4. then, solve!
hope this helps!!

garik1379 [7]3 years ago

4 0

The answer your going To end up with is 20

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Drew's father bought 40 liters of gasoline at $.68 per liter. How much did he pay?

Ilya [14]

Multiply amount bought by price:

Total = 40 x 0.68 = $ 27.20

6 0

3 years ago

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A cylinder has a volume of 254.34 inches cubed. The height of the cylinder is 4 inches. What is the radius of the circle?

mars1129 [50]

Answer:

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Step-by-step explanation:

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2 years ago

Determine whether the parabola y = −x2 + 15x + 8 opens up, down, left, or right.

spayn [35]

Dy/dx=-2x+15

d2y/dx2=-2

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3 years ago

Answer both pls. True or false? explain

olga55 [171]

Answer:

False

Step-by-step explanation:

It is not because a linear function make a straight line, since it contains $x^{2}$ is is not linear. It creates a parabola.

5 0

2 years ago

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To calculate the cost of painting his silo, a farmer must find its height. The farmer uses a cardboard square to line up the top

tankabanditka [31]

Answer:

Height of the silo = 18 feet.

Step-by-step explanation:

From the figure attached BC is the length of the silo and the height of the farmer is 5 ft.

Farmer is standing at 8 ft distance from the silo.

From triangle AEC,

tan(∠CAE) = $\frac{CE}{AE}$

= $\frac{5}{8}$

m(∠CAE) = $tan^{-1}(\frac{5}{8})$

= 32°

m∠BAE = 90° - 32° = 58°

From the triangle ABE,

tan58° = $\frac{BE}{AE}$

BE = 8tan58°

BE = 12.8 ft

Total height of the silo = BE + EC

= 12.8 + 5

= 17.8

≈ 18 ft

Therefore, total height of the silo is 18 ft.

3 0

2 years ago