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3 years ago

Find the surface area of a sphere with a diameter of 32 mm. Express your answer in terms of pie

Mathematics

1 answer:

fenix001 [56]3 years ago

5 0

Answer:

A = 1024π

Step-by-step explanation:

$A=4\pi r^{2}$ Use this equation to find the surface area of the sphere

$A=4\pi(16)^{2}$ Simplify the exponent

A = 4π(256) Multiply

A = 1024π

If this answer is correct, please make me Brainliest!

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A 37 foot board must be cut into two parts. The longer part is one foot larger than the twice the shorter part. How long is each

Rus_ich [418]

Answer:

12 ft and 25 ft

Step-by-step explanation:

a part is x ft and the other is (2x+1) ft

so 37= x + 2x+1

37= 3x+1

-1 -1

36= 3x

:3 :3

x= 36:3

I= x= 12 ft

II= 2x+1=2*12+1=25 ft

3 0

2 years ago

What is the solution to the rational equation x over 2x plus 1 minus 1 over 4 equals 2 over 2x plus 1

aalyn [17]

We want to solve
$\frac{x}{2x+1} - \frac{1}{4} = \frac{2}{2x+1}$

Subtract 2/(2x+1) from each side.
$\frac{x}{2x+1} - \frac{2}{2x+1y} - \frac{1}{4} = 0$

Add 1/4 to each side, and simplify the left side.
$\frac{x-2}{2x+1} = \frac{1}{4}$

Cross multiply.
4(x - 2) = 1(2x + 1)
4x - 8 = 2x + 1

Simplify and solve for x.
4x - 2x = 1 + 8
2x = 9
x = 9/2 or x = 4 1/2.

Answer: $x = \frac{9}{2} \,\, or \,\, x = 4 \frac{1}{2}$

5 0

3 years ago

How do you solve this 2 step equation: 8+b/-4=5

Delicious77 [7]

I'm going to rewrite the equation assuming this is the correct form:
$8 - \frac{b}{4} = 5
\newline
-8 + 8 - \frac{b}{4} = 5 - 8
\newline
(-4)\cdot -\frac{b}{4} = -3 \cdot (-4)
\newline
b = -12$

3 0

2 years ago

Can someone please help me I don’t understand this. I keep getting it wrong

kicyunya [14]

Answer:

K- (-8, -2)

L- (2, -2)

J- (-8, -5)

M- (2, -5)

Step-by-step explanation:

Vertices refer to the points where the lines connect, or corners. In this problem they're represented by K, L, J, and M.

The current coordinates are-

K- (-8, -4)

L- (2, -4)

J- (-8, -7)

M- (2, -7)

Since the Y coordinate refers to vertical distance and the X coordinate refers to horizontal distance, translating them two units up would involve adding positive two to each y coordinate.

Therefore the new coordinates would be

K- (-8, -2)

L- (2, -2)

J- (-8, -5)

M- (2, -5)

Hope this was helpful! Sorry if I messed up askdjasjk

7 0

3 years ago

What does this equal: 4 1/2 + 3 2/3=

professor190 [17]

4 1/2 + 3 2/3 = 8.16666667

8 0

3 years ago

Read 2 more answers