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2 years ago

12

how many square feet of paper do you need to cover a cube with a side 10 in. long? Round your answer to two decimal places

2 answers:

Ket [755]2 years ago

8 0

The answer should be A.=4.17 sq ft

OverLord2011 [107]2 years ago

7 0

<span>Yes, this is the correct method. 10 in * (1 ft / 12 in) = 0.8333 ft, and the surface area of a cube is 6*s^2, where s is the edge length. Using s = 0.8333 in, I got a surface area of 4.17. If I used s = 0.833, I actually got 4.16, which is less accurate, so make sure you don't round too much when you do your calculations. XD

But I hope this helps!</span>

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steposvetlana [31]

Answer:

the first ones >

Step-by-step explanation:

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1 year ago

45 is 9% of what? Would that be a/45 <br> 9/100

Natalija [7]

45 is 9% of 500!

<em>I hope this helps!</em>

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2 years ago

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lana [24]

Answer:

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Step-by-step explanation:

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2 years ago

For the equation ae^ct=d, solve for the variable t in terms of a,c, and d. Express your answer in terms of the natural logarithm

saveliy_v [14]

We have been given an equation $ae^{ct}=d$ . We are asked to solve the equation for t.

First of all, we will divide both sides of equation by a.

$\frac{ae^{ct}}{a}=\frac{d}{a}$

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Now we will take natural log on both sides.

$\text{ln}(e^{ct})=\text{ln}(\frac{d}{a})$

Using natural log property $\text{ln}(a^b)=b\cdot \text{ln}(a)$ , we will get:

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We know that $\text{ln}(e)=1$ , so we will get:

$ct\cdot 1=\text{ln}(\frac{d}{a})$

$ct=\text{ln}(\frac{d}{a})$

Now we will divide both sides by c as:

$\frac{ct}{c}=\frac{\text{ln}(\frac{d}{a})}{c}$

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3 years ago

The equation of line L, is y = 5x + 1

Lynna [10]

Answer:

see explanation

Step-by-step explanation:

Parallel lines have equal slopes.

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

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Add 10x to both sides

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2y = 10x - 3 ( divide all terms by 2 )

y = 5x - $\frac{3}{2}$ ← in slope- intercept form

with slope m = 5

Since both lines have a slope of 5 then they are parallel.

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3 years ago