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Marysya12 [62]
3 years ago
7

Please help: Find the volume of the solid. Use 3.14 for π.

Mathematics
1 answer:
Kazeer [188]3 years ago
6 0

Answer:

The volume of the solid is 420m³

Step-by-step explanation:

The area of any pyramid is "1/3 · B · h", where B is the area of the base, and h is the height.

Knowing this we just need to solve for a couple of things.

First, and the easiest is the height of the triangle which (thankfully) is given to us. The height is 15m, which plus one number into our equation.

1/3 · B · 15

Second, we need to find the area of the base of the pyramid. That's done easily by finding the area of a triangle ( \frac{base * height}{2} → \frac{24*7}{2} → \frac{168}{2} → 84) giving us 84 units. This puts another number into our equation.

1/3 · 84 · 15

Now that we have all of the parts to our equation, we can solve it.

1/3 · 84 · 15

1/3 · 1260

420

The volume of the solid is 420m³

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3 years ago
Can you please help me with this I will mark the BRAINLIEST who ever can help thanks​
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1. Solve: -3x + 1 = 7
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Answer:

1. -2 = x

2. 19 = x

3. -22 = b

4. 30 = y

5. -5 = t

Step-by-step explanation:

1. -3x = 6 [-1 to the right side of the equivalence symbol]

2. 5x = 95 [23 to the right side of the equivalence symbol]

3. ᵇ/₂ = -11 [23 to the left side of the equivalence symbol]

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3 years ago
A baby giraffe has a mass of 12 Kg. How many grams is the baby girafe?
Irina-Kira [14]

Answer:

12000 grams.

Step-by-step explanation:

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What angle does an arc 6.6cm in length subtends at the centre of a circle of radius 14cm. Use π = 22/7)
aniked [119]

Answer:

STEP 1: Find the circumference:

Circumference = 2πr

Circumference = 2π(14) = 28π cm

............................................................................................

STEP 2: Find the length of the arc:

Length of the arc = 36/360 x 28π

Length of the arc = 8.8 cm

.............................................................................................

Answer: The length of the arc is 8.8 cm

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