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GenaCL600 [577]
3 years ago
14

(10 points!) Please help ya girl out! Thank you

Mathematics
1 answer:
Stels [109]3 years ago
7 0

Answer:

401.92 in ^2

Step-by-step explanation:

The surface area of a cylinder is

SA = 2 pi r^2  + 2 pi r h

We know the radius is 4 and the height is 12

SA = 2 * (3.14) * (4)^2 + 2 * (3.14)* (4) *12

      100.48 + 301.44

          401.92

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ololo11 [35]
The x-intercept is (11.43,0) I don’t know how to explain it to you
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3 years ago
from start to finish, a machine can fill a bottle of water,seal it,label it, and pack it in 8.6 seconds. About how many bottles
Sphinxa [80]
About 55.8 (i suggest rounding up to 56) are packed in 480 seconds. just divide 480 by 8.6 to get the answer 55.8

5 0
3 years ago
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Consider the function f(x) = x2 + 3x − 7. Find the value of f(x) when x = 3 and select the correct answer below. 5 8 11 18
kenny6666 [7]
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6 0
3 years ago
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Neil is 4 years older than Andrea. If Neil was twice as old as Andrea four years ago, how old was Andrea?
tatuchka [14]

Answer:

Neil's age is 12 and the age of Andrea is 8.

Step-by-step explanation:

Let

x ---> Neil's age

y ---> Andrea's age

we know that

Neil is 4 years older than Andrea

so

x=y+4 -----> equation A

Neil was twice as old as Andrea four years ago

so

x-4=2(y-4)

x-4=2y-8\\x-2y=-8+4

x-2y=-4 ----> equation B

substitute equation A in equation B

y+4-2y=-4

solve for y

2y-y=4+4\\y=8

<em>Find the value of x</em>

x=8+4=12

therefore

Neil's age is 12 and the age of Andrea is 8.

6 0
3 years ago
Annual sales for a fast food restaurant are $650,000 and are increasing at a rate of 4% per year. What is the annual sales after
trapecia [35]

Answer:

Around $855,355.66

Step-by-step explanation:

In these type of problems, you'd use the following equation

Initial Value * (percentage)^{x}

Since the revenue's increasing by 4% every year, you'd plug 104/100 in the percentage box. X is the ammount of times the percentage is applied, so it would be 7, since we're finding the sales after 7 years. Finally, 650000 goes into the initial value and yeah. After calculating, you'll get around $855,355.66

6 0
3 years ago
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