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cluponka [151]
3 years ago
10

What is the area of the paper used to wrap a can of soup if the can is 11 cm tall and has a diameter of 7.5 cm. Show all formula

s and work.
Mathematics
1 answer:
Dimas [21]3 years ago
6 0

Notice that a can is a cylinder, which is basically two circles and one rectangle. Now, the question wants area of this rectangle.

You know the width of the rectangle (or the paper), which is 11cm. How do you find the length then?

Notice that the length of the rectangle is also the circumference of the circles. From here, use C = πd where C is circumference and d is diameter. The d is given, which is 7.5 cm. Depending on the question, π can be 3.14, 22/7 or the actual pi.

multiply π and 7.5cm and you get the circumference. Multiply this to 11cm and you get area of the rectangle.

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Answer:

13y + 1/3 + 6m

Step-by-step explanation:

6y + 4/15 + 9m + 1/15 + 7y - 3m = 6y +1/3 + 9m + 7y - 3m = 13y + 1/3 + 6m

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What is the equation of the line that goes through (2, 2) and is perpendicular to y = 5x + 3?
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Y = 5x + 3.....the slope here is 5. A perpendicular line will have a negative reciprocal slope. To find the negative reciprocal, we flip the original slope and change the sign. So we have slope 5 or 5/1.....flip it and it becomes 1/5....change the sign and it becomes - 1/5. So our perpendicular line will have a slope of -1/5.

y = mx + b
slope(m) = -1/5
(2,2)....x = 2 and y = 2
now we sub into the formula and find b, the y int
2 = -1/5(2) + b
2 = -2/5 + b
2 + 2/5 = b
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5 0
3 years ago
Which expression is equivalent to -1/3(6x+15)-3
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Step-by-step explanation:

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svp [43]
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We move all terms to the left:

8-2(n+3)-(n+7-3n)=0

We add all the numbers together, and all the variables

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We multiply parentheses

-2n-(-2n+7)-6+8=0

We get rid of parentheses

-2n+2n-7-6+8=0

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Answer:

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Step-by-step explanation:

<u>Given system:</u>

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Eliminate r to solve for s.

<u>To do so, double the first equation and then subtract the second one:</u>

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<u>Subtract</u>

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Correct choice is (4) 20

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