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3 years ago

What is the volume of a hemisphere with a radius of 3.4 cm, rounded to the nearest tenth of a cubic centimeter

Mathematics

1 answer:

vredina [299]3 years ago

6 0

Answer: 82.28 cm^3

Step-by-step explanation:

$Formula: V=\frac{2}{3}\pi r^3$

$V=\frac{2}{3}(3.14)(3.4)^3\\ V=82.28cm^3$

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Write the equation: 5 more than 3 times a number is 20

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5+3n=20

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3 years ago

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Alice's book has 200 pages . Alic has read 75%of the pages in her book Nina has read the same number of pages but only 50% of th

kirza4 [7]

Answer:

I Believe the answer is 300

Step-by-step explanation:

75% of 200 is 150 and Nina also read 150 pages. They said Nina only read 50% of her book so that means there's 150 more pages left.

I Hope this helped and i explained it well enough for you to understand

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2 years ago

18/25 equals 126/?<br><br>Help, my dudes!<br><br>What does that question mark represent?

kap26 [50]

Answer:

the "?" represents the number 175

Step-by-step explanation:

126/18=7

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2 years ago

one more than six times that number is 25. select the solution and graph that represents the original number

Brums [2.3K]

6n+1 = 25

subtract 1 from each side

6n+1-1 = 25-1

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divide each side by 6

6n/6 = 24/6

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2 years ago

What is the area of the trapezoid? The diagram is not drawn to scale.

Katyanochek1 [597]

Answer:

The area of trapezoid is 72 cm²

Step-by-step explanation:

Given : A trapezoid with given dimensions.

We have to find the area of trapezoid ABCD.

Consider the given trapezoid ABCD ,

AB = EF = 8 cm

and CE = FD = 4 cm

Then CD = CE + EF + FD = 4 + 8 + 4 = 16 cm

Thus, Area of trapezoid = $\frac{1}{2}\cdot \text{(Sum of parallel sides)} \cdot height$

here, height = 6 cm

and sum of parallel sides = AB + CD = 16 + 8 = 24 cm

Thus, Area of trapezoid = $\frac{1}{2}\cdot 24 \cdot 6$

Simplify, we have,

Area of trapezoid = 72 cm²

Thus, The area of trapezoid is 72 cm²

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