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ivolga24 [154]
3 years ago
11

What is the volume of the square pyramid with bad edges 12cm and height 12cm?

Mathematics
1 answer:
spayn [35]3 years ago
8 0
The volume of a pyramid is found by multiplying the length, width and height together then dividing by 3.

 length x width x height = 12 x 12 x 12 = 1728

volume = 1728 / 3 = 576 cubic cm


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What is the answer to this and how do I do this problem?
DaniilM [7]

Answer:

  B) 25.1 units

Step-by-step explanation:

The perimeter is the sum of the lengths of the sides of the triangle. The length of the side BC that is vertical can be found by finding the difference of y-coordinates:

  BC = 5 -(-2) = 7

The lengths of the other two sides can be found using the given distance formula. Fill in the coordinate values and do the arithmetic.

  AB = √((4-(-4))^2 +(5-(-1))^2) = √(8^2 +6^2) = √(64+36)

  AB = √100 = 10

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  AC = √((4-(-4))^2 +(-2-(-1))^2) = √(8^2 +(-1)^2) = √(64 +1)

  AC = √65 ≈ 8.06

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So, the perimeter is ...

  P = AB +BC +AC

  P = 10 + 7 + 8.06 = 25.06 ≈ 25.1 . . . . matches choice B

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2 years ago
A bottle of vitamins should have 60 vitamins. The actual number is 62. What is the percent error to the nearest hundredth?
Phoenix [80]

Answer:

3.33%

Step-by-step explanation:

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8 0
3 years ago
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Find the angle between the given vectors to the nearest tenth of a degree. u = (8, 4), v = (9, -9)
Usimov [2.4K]

Answer:

<em>71.6 degrees </em>

Step-by-step explanation:

The formula for calculating the angle between two vectors is expressed as;

u.v = |u||v|cos theta

u.v = (8, 4).(9, -9)

u.v = 8(9)+4(-9)

u.v = 72-36

u.v = 36

|u| = √8²+4²

|u| = √64+16

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|v| = √9²+(-9)²

|v| = √81+81

|v| = √162

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36 = √12960 cos theta

36 = 113.84 cos theta

cos theta = 36/113.84

cos theta = 36/113.84

cos theta = 0.3162

theta = arccos (0.3162)

<em>theta = 71.6 degrees </em>

<em>Hence the angle between the given vectors is 71.6 degrees </em>

7 0
3 years ago
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25/36 × 8/35 Give your answer as a fraction in its simplest form.
Sidana [21]

Answer:

\frac{10}{63}

Step-by-step explanation:

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Please add the image to solve. Thank you.

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