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vfiekz [6]
3 years ago
11

SURFACE AREA! PLEASE HELP!

Mathematics
1 answer:
frozen [14]3 years ago
7 0

Answer:

Step-by-step explanation:

h = 3 cm

d = 4 cm

r = 4/2 = 2 cm

Surface area = 2πr(h + r)

= 2* 3.14 * 2 * (3 + 2)

= 2*3.14*2*5

= 62.8 cm²

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A chord in a circle is 18 cm long and is 5 cm from the center of the circle. How long is the radius of the circle
Veseljchak [2.6K]

2, just use pemdas.

5 0
3 years ago
Simplify the expression:<br><br> 2(3 + g) =
Alex17521 [72]

Answer:

6 + 2g

Step-by-step explanation:

whenever you have a problem like that you have to distribute the 2 to both the numbers in the parenthesis. You have to multiply 2 by 3 which is 6. Then you multiply 2 by g and you get 2g. We can't get any further so the simplified expression would be 6 + 2g

4 0
3 years ago
HELP ASAP!!!!!!!!!! Please
N76 [4]

Answer:

C

Step-by-step explanation:

Growth can be represented by the equation A=A_01.02^{t}. We know that r=2% or 0.02 in this situation so we have 1.02. We know t=100 hours and the starting population A=200. We substitute these values and use a calculator to evaluate.

A=A_01.02^{t}\\A=200(1.02)^{100}

We now use our calculator to evaluate the exponent first and then multiply by 200.

A=200(7.2446)=1448.93


8 0
3 years ago
.Margaret is treating her best friend to a birthday dinner. Before ordering, Margaret wants to have an idea of the final bill. T
Nikitich [7]

Answer:

Your answer is 61.

Step-by-step explanation:

Simple enough! We simply round up each cost to the nearest whole dollar. $6.50 can be rounded to $7, $15.75 can be rounded up to $16, $2.25 can be rounded up to $3 (Note we're rounding up, in normal rounding we would round down to $2). Finally, $7.25 can be rounded up to $8.

Next comes simple algebra,

7+(16*2)+(3*2)+(8*2)=61

Therfore, your overestimate of the cost would be 61.

5 0
3 years ago
Read 2 more answers
How do I solve this?
Olin [163]
Well if it is 1 inch per 100 feet, then we already know that 600 feet is 6 inches on the map. Now the 4 is where it gets trickier. Since it's dividing it by 100 each time, you take 4 and divide it by 100 which is 0.04. Therefore, your answer is 6.04 inches on the map.
6 0
3 years ago
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