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Alborosie
2 years ago
8

What is the surface area of the hemishpere? 32 m

Mathematics
2 answers:
yKpoI14uk [10]2 years ago
5 0

Answer:

The surface area of a sphere of radius r is 4 π r2. Half of this is 2 π r2. If this is what is meant by the surface area of a hemisphere then 2 π r2 = 1062.

Step-by-step explanation:

Darya [45]2 years ago
4 0

Answer:

K = (2πr2) + (πr2) = 3πr

Step-by-step explanation:

K = (2πr2) + (πr2) = 3πr Heres something that might help.

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URGENT!! MUST ANSWER QUICKLY!!! WILL GIVE BRAINLIEST IF CORRECT!!
Gre4nikov [31]

Answer: The correct answer is 3/32.

Hope this helps!  :)

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Chistopher is 20 years younger than ishaan. Ishaan and chistopher first met two years ago. Fourteen years ago, ishaan was 3 time
lisabon 2012 [21]

Answer:

Ishaan is 49 years old.

Step-by-step explanation:

Let the present age of Christopher be 'C'.

Let the present age of Ishaan be 'I'.

From the given data, we can form equations which will help us solve the problem.

Christopher is 20 years younger than Ishaan. This means:

C = I - 20                  . . . (1)

Fourteen years ago, Ishaan would have been (I -14) years old and Christopher (C - 14) years old.

From the data, I - 14 = 3(C - 14)         . . . (2)

Substituting the value of C in Equation 2, we get:

I - 14 = 3(I - 20 - 14)

⇒ I - 14 = 3(I - 34)

⇒ I - 14 = 3I - 112

⇒ 2I = 112 + 14 = 98

⇒ I = 49

So, Ishaan is 49 years old.

4 0
3 years ago
Iv)
vichka [17]

Answer:

Her daughters age: 1/2x

Step-by-step explanation:

Let's say Rani's present age is x. Her age is twice the age of her daughter.

So if Rani's age is 20, her daughters age would be 10, because Rani is twice the age of 10; so 10 times 2 would be 20.

1/2(20)=daughter's age

so if you substitute x into 20 because we don't actually know Rani's age, it would be 1/2(x)=daughter's age.

hope this helped :-) <3

3 0
3 years ago
Find the arc length of ABC .
Salsk061 [2.6K]

Answer:

C.

Step-by-step explanation:

Since the radius of the circle is 12 units, we can calculate the circumference.

2 * pi * r = 2 * pi * 12 = 24 * pi = 24pi.

The arc angle is 240 degrees, and the whole circle would be 360 degrees. So, we can set up an equation.

\frac{24\pi }{360} =\frac{x}{240}

\frac{24\pi }{6} =\frac{x}{4}

\frac{4\pi }{1} =\frac{x}{4}

1 * x = 4 * 4 * pi

x = 16pi

So, your answer is C.

Hope this helps!

4 0
2 years ago
100 students were surveyed for their pets at home. There are 36 students with dogs, 33 students with cats, 30 students with fish
DedPeter [7]

Answer:

A: the answer would be 1 i think for part b: 6 part C:72 part D:36 and part E :72

Step-by-step explanation:

hope this helps i think im right im not 100% sure but that is kinda confusing

7 0
3 years ago
Read 2 more answers
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