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Finger [1]
4 years ago
6

Which describes the combined variation in the formula V = ℓwh?

Mathematics
1 answer:
kaheart [24]4 years ago
6 0
This is the concept of proportionality; we are required to find the combined variation for the volume formula given by:
V=length*width*height
V=lwh
here we see that volume is directly proportional to width, length and height;
therefore the correct answer is:
A] V varies jointly as l,w and h

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If a solar panel generates power at the rate of 400 kilowatts per day when the sky is cloudy, and 400 kilowatts per day when the
Wewaii [24]

33.4 kW/ hr is generated when the sky is cloudy and clear.

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

Power generated per day when the sky is cloudy = 400 kW

Power generated per day when the sky is clear = 400 kW

Power generated per hour when the sky is cloudy or clear = $\frac{400}{24} = 16.7 kW

Power generated per hour when the sky is cloudy and clear = 16.7 + 16.7 = 33.4 kW

3 0
3 years ago
Solve 3(x + 2) &gt; x.
Georgia [21]
3(x + 2) > x
3x + 6 > x
3x - 3x + 6 > x - 3x
6 > -2x
6/-2 < -2x/-2
-3< x
(When dividing by a negative, reverse the direction of the inequality side, reverse it EVERY time you divide by a negative)

ANSWER: -3 < x
5 0
3 years ago
What is -3x+13=16 help me with each step.
hoa [83]

-3x+13=16

Move +13 to the other side. Sign changes from +13 to -13.

-3x+13-13=16-13

-3x=16-13

-3x=3

Divide by -3 for both sides.

-3/-3x=3/-3

Cross out -3 and -3, divide by -3, then becomes 1*1*x=x

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Answer: x=-1

6 0
4 years ago
Please help me find out what k is.
Ghella [55]

Answer: a) k=8

b) The area of the addition =30\text{ square feet}

The area of the entire patio after addition =80\ \text{square feet}

Step-by-step explanation:

Given: The area of the patio before addition = 50 square feet

The area of the addition portion is given by k^2-3k-10

We can see that dimension of the total portion is k\times(k+2)

therefore, the area of the patio with the addition portion = k\times(k+2)=k^2+2k

According to the question we have,

k^2-3k-10+50=k^2+2k\\\Rightarrow-3k+40=2k\\\Rightarrow\ 5k=40\\\Rightarrow\ k=8

Therefore,  The area of the addition =8^2-3(8)-10=64-24-10=30\text{ square feet}

The area of the entire patio after addition =  30+50=80\ \text{square feet}

7 0
3 years ago
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