PLEASE HELP!! surface area of composite figures..

Mathematics

2 answers:

STALIN [3.7K]2 years ago

5 0

Cut the shape into shapes you know the area of and do the formula this helps

bezimeni [28]2 years ago

5 0

Cut the shape into shapes you know the area of and do the formula this helps

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Vanessa bakes a rectangular cake that is 9 inches wide,13 inches long and 2 inches high. She removes the cake from the pan to fr

TEA [102]

This is a rectangular cake, and there are 3 measurements, meaning that you are evidently finding volume.

Let's go back, first off, the formula for volume is...

V = L x W x H (Length, Width, Height)
Your measurements are 9 in, 13 in, 2 in.

All you need to do is follow the formula and multiply them.

9 x 2 = 18
18 x 13 = 234 $in^{2}$

Your answer is C: 234 $in^{2}$

Hope this helps!

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2 years ago

Emily sent 60 texts so far this week. What is 20%of the total number of text messages she is allowed in one week

Rina8888 [55]

Answer:

so we should find the %20 of 60

60.%20=12

Step-by-step explanation:

the answer is 12

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2 years ago

HELPPPPPPP

quester [9]

Answer:

It's A. (2, 0) and (0, -4)

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1 year ago

Read 2 more answers

find the magnitude of two forces f1 and f2 such that at right-angle to each other, their resultant is √13N. Also, if the two for

serious [3.7K]

This can be solved a couple of ways. One way is to use the Pythagorean theorem to write equations for the magnitude from the components of the forces. That is what was done in the graph here.

Another way is to use the Law of Cosines, which lets you make direct use of the angle between the vectors.
.. 13 = a^2 +b^2 -2ab*cos(90°)
.. 19 = a^2 +b^2 -2ab*cos(120°)
Subtracting the first equation from the second, we have
.. 6 = -2ab*cos(120°)
.. ab = 6

Substituting this into the first equation, we have
.. 13 = a^2 +(6/a)^2
.. a^4 -13a^2 +36 = 0
.. (a^2 -9)(a^2 -4) = 0
.. a = ±3 or ±2

The magnitudes of the two forces are 2N and 3N, in no particular order.

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3 years ago

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According to his calculations, b has a 3/10 chance to win

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2 years ago