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geniusboy [140]
2 years ago
11

What is the surface of the prism?

Mathematics
1 answer:
jasenka [17]2 years ago
4 0

<u>Given </u><u>:</u><u>-</u>

  • Length :- 8m
  • Width :- 10
  • Height :- 10m

<u>To </u><u>find</u><u> </u><u>:</u><u>-</u>

  • Surface area

<u>Solution</u><u> </u><u>:</u><u>-</u>

formula for Surface Area = 2(LW + WH + HL)

  • putting the known values,

Surface Area = 2(8×10 + 10×10 + 10×8) m²

<u>Surface</u><u> Area</u><u> </u><u>=</u><u> </u><u>2</u><u>(</u><u>2</u><u>6</u><u>0</u><u>)</u><u> </u><u>m²</u>

<u>Surface</u><u> Area</u><u> </u><u>=</u><u> </u><u>5</u><u>2</u><u>0</u><u>m</u><u>²</u><u> </u><u>(</u><u> </u><u>Option</u><u> </u><u>C</u><u>)</u>

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Answer:

45

Step-by-step explanation:

The known side is 3 times the length of the smaller figure. To make sure the figures remain similar, you must also multiply the longer side of the smaller figure(15) by 3. This will give you 45.

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Mark, Paul and Brian share some sweets in the ratio 1:3:5. Mark gets 14 sweets. How many
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7

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Answer:

c. 6

Step-by-step explanation:

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c.) The sonar of a navy cruiser detects a submarine that is 4000 feet from the cruiser. The angle between the water line and the
Kamila [148]

Answer:

2236.77 feets

Step-by-step explanation:

From the attached picture, we are to find x, which is the vertical depth of the submarine.

Using trigonometry based on the illustration in the diagram:

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Sinθ = x (depth of submarine) / distance from ship (4000)

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7 0
3 years ago
What is the anwser to 3(x-1)-8=4(1+x)+5
Fynjy0 [20]

X=20

3(x-1)-8=4(1+x)+5

1. Distribute

3x-3-8= 4+4x+5

2. Combine like terms

3x-11=4x+9

3. Add 11 or subtract 9 to both sides

3x-11+11=4x+9+11

or

3x-11-9=4x+9-9

3x=4x+20

or

3x-20=4x

If you did the first step then you subtract 4x from both sides

3x-4x=4x+20-4x

-x=20

Then you would divide by a negative 1 because there is an imagery 1 in front of the x.

-x/-1=20/-1

x=-20

If you did the second way then you would subtract 3x from both sides

3x-20-3x=4x-3x

-20=x

And you get the same answer for both ways




6 0
3 years ago
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