Describe how you figure out the square footage of the walls in a 10 by 14 room with an 8 foot ceilings.

1 answer:

5 0

The area of a rectangular prism is found with the formula
2(wl+hl+hw)
where w is width, h is height, and l is length
The area is sqrt 664

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Explain the difference between |-3| and -3?

Ivan

They are opposites. since |-3| has the lines around it, this represents absolute value, which is not positive or negative but how far away the value is from 0. the plain -3 remains the same. |-3| is 3, because it is 3 units away from 0 on the number line.

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3 years ago

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Vavilen inflated a huge balloon in 19 minutes. Then he poked a hole in the balloon so that it slowly leaked air out until it was

kaheart [24]

Considering balloon to be an spherical object

Volume of sphere = $\frac{4}{3}\pi r^3$ , where r is the radius of sphere.

After 19 minutes ,If radius of balloon changes from r to R, the Volume changes from V to V'.

V'= $\frac{4}{3}\pi R^3$ ,

As given,rate at which the air leaked out of the balloon (in liters of air per minute) was half of the rate at which Vavilen inflated the balloon.

Also, $\frac{dR}{dt}=2 \times \frac{dr}{dt}$

Now, again the radius changes from R to r.So, Volume changes from V' to Back to V.

Time taken by the balloon to deflate = 38 minutes

But there is no relation between time and volume of Balloon.

So, we can't predict at which rate balloon is deflating or inflating.Apart from the statement given in Question: $\frac{dR}{dt}=2 \times \frac{dr}{dt}$

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3 years ago

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Which shows that a graph is shifted 4 units to the left and then 2 units up?

n200080 [17]

Answer choice A. The function moves left 4 units, and 2 units up.

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3 years ago

Number sequence 3 6 4 8 6 12 10

Jobisdone [24]

The sequence is times 2 minus 2
3 x 2 = 6 - 2 = 4
10 x 2 = 20
20 - 2 = 18

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3 years ago

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Factor the following number and give the steps<br> 4a+12b-20

Reil [10]

Here, we can either factor:
1. The numbers
2. The variables
3. Both 1 and 2
In this instance, we factor 1 because the variables are different but the three numbers have a Greatest Common Factor.
4a+12b-20
4(a+3b-5)

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3 years ago