The energy usage of a light bulb is a function. The input for the function is _____ measured in hours.

Mathematics

1 answer:

Elena L [17]3 years ago

8 0

Answer:

Time

Step-by-step explanation:

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Please help me with number 4 thank you so much!

olga_2 [115]

Answer:

the product is equal to the number. When a positive whole number is multiplied by a fraction greater than 1. When a positive whole number is multiplied by a fraction between 0 and 1, the product is less than the whole number.

Step-by-step explanation:

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2 years ago

If five slices of pizza cost $5.50, how much do two slices cost? Ten slices? Half a slice?

Norma-Jean [14]

Answer:

2.2, 11 and 0.55

Step-by-step explanation:

5.50÷5= 1.1 then multiply by 2,10 and half

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3 years ago

Anil weighed 95 kg. He went running every day and began to lose mass. After one month his mass was 74 kg. What was the percentag

Phoenix [80]

Percentage decrease formula =
difference / original x 100%

95-74=21
21/95 x 100% = 22.1052632 ≈ 22.1 ( 3sf )

hope my answer helps

7 0

3 years ago

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The length of a rectangle is 3 inches more than three times the width. the perimeter is 94 inches. find the length and width.

Zina [86]

Let length be (l) and width be (w).

According to the question, l=3w+3......equation1
And perimeter that is 2(l+w) =94........equation2

Solve these two equations, you get your answer.
l=36
w=11

3 0

3 years ago

PLEASE HELP! BRAINLIEST!!!!!!! PLEASE

Gnesinka [82]

Hello!

First you have to find the volume of the cylinder

To find the volume of a cylinder you use the equation

$V = \pi r^{2} h$

V is volume
r is radius
h is height

Put in the values you know and 3.14 for pi

$V = 3.14 * 3^{2} * 7$

Square the number

V = 3.14 * 9 * 7

Multiply

V = 197.82
------------------------------------------------------------------------------------------------------
Next you find the volume of the sphere

To find the volume of a sphere you use the equation

$V = \frac{4}{3} \pi r^{3}$

V is volume
r is radius

Put in the values you know and 3.14 for pi

$V = \frac{4}{3} * 3.14 * 3^{3}$

Cube the number

$V = \frac{4}{3} * 3.14 * 27$

Multiply

V = 113.04
------------------------------------------------------------------------------------------------------
Finally you subtract the two volumes from each other

197.82 - 113.04 = 84.78
------------------------------------------------------------------------------------------------------
The answer is C)84.78

Hope this helps!

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3 years ago

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