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d1i1m1o1n [39]
2 years ago
9

Not sure how to do this. need help

Mathematics
1 answer:
alexdok [17]2 years ago
6 0

Answer:

a) 25/2 or 12.5

b) 78,125

c) 625

d) 30,517,578,125

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A triangle has side lengths of 12 cm, 35 cm, and 42 cm. Classify it as acute, obtuse, or right.
Oxana [17]
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3 years ago
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PLZ ANSWER 75 POINTS FAST!!!!!!!!!!!!!!!!
Contact [7]

Answer:

6 inches

Step-by-step explanation:

The volume of a triangular pyramid can be found using

v=1/3bh

where b is the area of the base, and h is the height

We know the volume is 12, so let's find the area of the base

The area of a triangle can be found using:

a=bh/2

We know the base is 4, and the the height is 3, so we can substitute them in

a=4*3/2

a=12/2

a=6

Now, we can solve for the height

v=1/3bh

Substitute 12 in for v, and 6 in for b

12=1/3(6h)

Multiply both sides by 3

3*12=1/3(6h)*3

36=6h

Divide both sides by 6

h=6

The height is 6 inches

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3 years ago
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vredina [299]
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2 years ago
What would 672,831 be rounded to the nearest hundred
maks197457 [2]

Answer:

672,800

Step-by-step explanation:

672,800 672800

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3 years ago
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