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kow [346]
3 years ago
7

The diameter of a large sphere is 4 times the diameter of a small sphere. The surface area of the large sphere is how many times

the surface area of small sphere?
Mathematics
1 answer:
Sever21 [200]3 years ago
4 0
Surface Area of a Sphere = 4π(d/2)²
Let the smaller sphere's diameter be just a sample of 4 units in diameter and let the large spheres diameter be 4 times that of the smaller sphere.

Small Sphere: 4π(4/2)² = 16π units²
Large Sphere: 4π(16/2)² = 256π units²

256π / 16π = 16 times

The large sphere has a surface area 16 times that of the smaller one.
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The recycling center processed 36,000 pounds of recyclable materials. How many tons of recyclable materials are processed?
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18 Tons

Step-by-step explanation:

36,000 / 2000 = 18

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2 years ago
1.<br> (k — 7)(k – 1) =<br> 0
LenaWriter [7]

Answer:

K = 7 or 1

Step-by-step explanation:

(7-7)(7-1)=0

(1-7)(1-1)=0

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2 years ago
What is the ratio of the number of 8 nickels to the number of 10 dimes?​
MakcuM [25]

Answer:

2/5

Step-by-step explanation:

start by 8*5 then 10 times 10 then simplify

4 0
2 years ago
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I NEED HELP PLEASE, THANKS! :) Determine the zeros for and the end behavior of f(x) = x(x – 4)(x + 2)^4.
Amiraneli [1.4K]

Answer:  a) zeros: x = {0, 4, -2}

               b) as x → ∞,  y → ∞

                   as x → -∞,  y → ∞

<u>Step-by-step explanation:</u>

I think you mean (a) find the zeros and (b) describe the end behavior

(a) Find the zeros by setting each factor equal to zero and solving for x:

      x (x - 4) (x + 2)⁴ = 0

  • x = 0   Multiplicity of 1  --> odd multiplicity so it crosses the x-axis
  • x = 4  Multiplicity of 1  --> odd multiplicity so it crosses the x-axis
  • x = -2 <u>Multiplicity of 4 </u> --> even multiplicity so it touches the x-axis

                       Degree  =  6

(b) End behavior is determined by the following two criteria:

  1. Sign of Leading Coefficient (Right side): Positive is ↑, Negative is ↓
  2. Degree (Left side): Even is same direction as right side, Odd is opposite direction of right side

Sign of the leading coefficient is Positive so right side goes UP

                                                                        as x → ∞,  y → ∞

Degree of 6 is Even so Left side is the same direction as right (UP)

                                                                        as x → -∞,  y → ∞

7 0
3 years ago
I'll give u a kith pls help
lord [1]

ANSWER:

Solve for the first variable in one of the equations, then substitute the result into the other equation.

Point Form:

(−2,−16)

Equation Form:

x= −2, y= −16

8 0
3 years ago
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