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Nostrana [21]
2 years ago
11

A compact disc cover is 14 centimeters (cm) long, 12.4cm wide, and 1 cm deep. Which of the following represents the surface area

of the cover?
Mathematics
1 answer:
bogdanovich [222]2 years ago
4 0

Answer:

SA= 2(l x w) |+2(l x h)+2(h x w)

= 2(14 x 12.4) +2(14 x 1)+2(1x 12.4)

=2(173.6)+2(14)+2(12.4)

=347.2|+28+24.8

Surface area is: 400 cm square

Step-by-step explanation:

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A cylindrical water tank has a diameter of 5.3 meters and a height of 9 meters. What is the maximum volume that the water tank c
atroni [7]

Answer:

198.56m^{3

Step-by-step explanation:

To find the volume of a cylinder, you need to find the area of the cross-section (one of the circles on the side) and multiply it by the length.

Area of the circle = πr^{2} = π x (5.3/2) x (5.3/2) = π x 2.65 x 2.65 = 7.0225π

Volume of the cylinder = 7.0225π x 9 = 63.2025π = 198.56m^{3

8 0
2 years ago
The larger of two numbers is four more than the smaller. if the larger is x what is the smaller?
Lelu [443]

Answer:

x-4

Step-by-step explanation:

Since the larger of two numbers is four more than the smaller one, this means that there is a difference of 4 between the two numbers. In order to find the smaller of both numbers, you can obtain the smaller from the largest by subtracting 4.

4 0
2 years ago
Can someone please help me solve the following? 2-(-2)³+(-4/2)³
Tcecarenko [31]

Answer:

BPEMDAS (brackets, parentheses, exponents, multiplication and division, addition and subtraction)- Left to right

Notes: Two negatives make a positive. When you have an odd exponent of an negative number, you get a negactive result.

2-(-8)+(-2)³

10-8

2

Hope this makes sense! :)

7 0
2 years ago
What is the Common denominator?
melomori [17]

[] The fractions are

        \frac{12}{21}\\\\\frac{4}{7}

[] I see that 21 is a multiple of 7, so this one will be simple to solve.

-> 21 / 7 = 3, so we can do the following:

             \frac{4*3}{7*3}=\frac{12}{21}

[] Now they have a common denominator of <u>21</u>

Have a nice day!

     I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly. (ノ^∇^)

- Heather

7 0
2 years ago
Identify the parts relating to o A.<br> What is FG?<br> What is DB?<br> What is DH?<br> What is AC?
svetoff [14.1K]

Answer:

Usually, when a question says "FG" or "DB" or any of the other letters put together, they mean the line that it connects to. For example: Point A to Point C. However, I can't say so for sure, because This answer most likely has a diagram drawn beside it. If you can put the diagram or picture along with your questions, I can help you out more!

Step-by-step explanation:

7 0
3 years ago
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