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3 years ago

Find the surface area of the sphere.

Mathematics

2 answers:

crimeas [40]3 years ago

5 0

Answer:

256π sq. in.

Step-by-step explanation:

fenix001 [56]3 years ago

4 0

Answer:

804 in^2

Step-by-step explanation:

The surface area of a sphere is given by A = 4πr^2, where r is the radius of the sphere.

Here, A = 4π*8^2 in^2 (must use units of measurement)

=256π in^2, or approximately 804 in^2

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HELP PLEASEEE. I DONT UNDERSTAND

Shtirlitz [24]

Answer:

Step-by-step explanation:

So we have the equation:

$x^2-6x+58=0$

And we want to solve for x.

We can solve it by completing the square.

First, subtract 58 from both sides:

$x^2-6x=-58$

Divide the b term by 2 and square it:

$(-6)/2=-3\\(-3)^2=9$

So, add 9 to both sides:

$(x^2-6x+9)=-58+9$

On the left, the perfect square trinomial pattern. Add on the right. So:

$(x-3)^2=-49$

Take the square root of both sides:

$x-3=\pm \sqrt{-49}$

The square root of -49 is 7i:

$x-3=\pm 7i$

Add 3 to both sides:

$x=3\pm 7i$

So, our answer is D.

And we're done!

4 0

3 years ago

A total of 484 tickets we’re sold for the school play. They Either adult or student tickets. There were 66 Fewer student tickets

choli [55]

Answer:

x + 61 = 411

Step-by-step explanation:

Let x = the number of adult tickets sold

Let x + 61 = the number of student tickets sold

x + x + 61 = 761

2x = 700

x = 350

4 0

3 years ago

A worker's in a sliver mine descends 57 feet. Use an integer to represent to cahnge the worker's position

LenKa [72]

The change is -57 feet.

3 0

3 years ago

State the domain & range!

Simora [160]

Answer:

Domain=x:x is a natural number less than 6: x≠4

Range= x:x is a natural number, 3>=x<=1

8 0

3 years ago

Read 2 more answers

In the adjoining figure, PQRS is a square and TQRS is a trapezium. If the area of the square PQRS is 25sq.cm and TP=12cm, find t

Wewaii [24]

Answer:

area of square=l²

25sq.cm²=l²

l=5sq.cm

area of trapezium =(1/2)(a+b)h

a=5,b=(12+5)=17,h=5

area of trapezium=(1/2)(22)(5)

area=55cm²

Pls mark as brainliest

6 0

3 years ago