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natima [27]
4 years ago
10

I don’t know how to do this. can someone please help me :)

Mathematics
1 answer:
Kaylis [27]4 years ago
8 0
The surface area of a cylinder is the sum of the area of the two ends and the lateral area.
.. surface area = 2*(end area) +(lateral area)
.. = 2*(π*r^2) +(2π*r*h)
.. = 2π*r*(r +h)
.. = 2*3.14*(8 in)*(8 in +8 in)
.. = 3.14*256 in^2
.. ≈ 803.8 in^2

The 3rd selection is appropriate.
You might be interested in
Bill is a car salesman. He earns $200 for every car he sells plus a 3% commission. If Bill sells 3 cars in one week for a total
katovenus [111]
The total he earns is the sum of two parts. One part is the $200 per car. The other part is the 3% commission.

total earnings = $200 per car + 3% commission on amount of sales

Let's look at the $200 per car first.
He sold 3 cars.
He earns $200 for each car he sells, so just from that he earns
3 * $200 = $600.

Now we look at the 3% commission.
He earns 3% of the total amount of sales.
The total amount of sales for the 3 cars was $32,343.
He earns 3% of that amount, so his 3% commission is
3% of $32,3243 = 3% * $32,343 = 0.03 * $32,343 = $970.29

The total earnings are the sum of the two parts.

$600 + $970.29 = $1570.29
7 0
3 years ago
Read 2 more answers
What is the equation of the line that passes through the point (-3,6) and has a slope of -2
OverLord2011 [107]

Answer:

pls

Step-by-step explanation:

3 0
3 years ago
Simplify this expression: -8w+(-4z)+2+6w+9z-7
White raven [17]

Answer:

-2w+5z-5

Step-by-step explanation:

-8w+(-4z)+2+6w+9z-7

Step 1: Group the terms together

-8w+6w+(-4z)+9z+2-7

Step 2: Add like terms

(-8w+6w)+(-4z+9z)+(2-7)

-2w+5z-5

Thats as simplified as it can get :)

5 0
4 years ago
Match each polynomial expression to is additive inverse
andriy [413]

Answer:

<em>hope</em><em> </em><em>y</em><em>o</em><em>u</em><em> </em><em>get</em><em> </em><em>it</em><em> </em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em>

3 0
3 years ago
Please help me out with this!!<br> BRAINLIEST AVAILABLE!!
lapo4ka [179]

Answer:

xy = 1

k = 79

Step-by-step explanation:

Question One

The first and third frames look to me to be the same. I'll treat them that way.

y = x^2                        Equate y = x^2 to the result of 2y + 6 = 2x + 6

2y + 6 = 2(x + 3)         Remove the brackets

2y + 6 = 2x + 6           Subtract 6 from both sides

2y = 2x                       Divide by 2

y = x

Now solve these two equations.

so x^2 = x                  

x > 0

1 solution is x = 0 from which y = 0. This won't work. x must be greater than 0. So the other is

x(x) = x                           Divide both sides by x            

x = 1                            

y = x^2                           Put x = 1 into x^2

y = 1^2                           Solve

y = 1                      

The second solution is

(1,1)

xy = 1*1

xy = 1

Answer: A

Question Two

square root(k + 2) - x = 0

Subtract x from both sides

sqrt(k + 2) = x                Square both sides

k + 2 = x^2                    Let x = 9

k + 2 = 9^2                    Square 9

k + 2 = 81

k = 81 - 2

k = 79

4 0
3 years ago
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