1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Alecsey [184]
3 years ago
14

The surface area, S, of a sphere of radius r feet is S = S(r) = 4πr^2. Find the instantaneous rate of change of the surface area

with respect to the radius r at r = 8.
Mathematics
1 answer:
8090 [49]3 years ago
7 0
Instantaneous rate of change = S'(r) = 8πr
S'(8) = 8π(8) = 64π

Therefore, the instantaneoud rate of change of the <span>surface area with respect to the radius r at r = 8</span>  is 64π
You might be interested in
Select the function that's represented in the graph. Question 5 options: A) ƒ(x) = x2 – 3 B) ƒ(x) = –1∕2x2 – 3 C) ƒ(x) = –x2 – 3
Neporo4naja [7]

Answer:

a)

Step-by-step explanation:

hello,

because of the end behaviour the constant in  x^2 should be positive so we have a) or d)

f(0)=-3 in both cases

for A) f(x)=

x^2-3=(x-\sqrt{3})(x+\sqrt{3})

so f(x)=0 for x=\sqrt{3} \ or \  x = -\sqrt{3}

so the correct answer is A)

hope this helps

3 0
3 years ago
Please help me with this problem​
victus00 [196]

Answer:

c

Step-by-step explanation:

y+3=\sqrt{\frac{x}{16}+2 } \\y=\sqrt{\frac{x+32}{16} } -3\\y=\frac{1}{4} \sqrt{x-(-32)} +(-3)\\so ~C

5 0
3 years ago
T had 53,790 miles onit. They had the car for 8.25 years. On average, how many miles did they drive per year?
liq [111]

Answer: ‭6,520‬ miles per year

Step-by-step explanation:

They had driven the car for 53,790 miles in 8.25 years.

The average number of number of miles driven per year is:

= 53,790 / 8.25 years

= ‭6,520‬ miles per year

<em>They drove an average of ‭6,520‬ miles per year.</em>

7 0
2 years ago
There is a bag filled with 4 blue, 3 red and 5 green marbles.
zhannawk [14.2K]

Answer:

You are selecting marbles with replacement. The marble selections (trials) are independent and the marble selection follows the binomial distribution.

The probability of selecting a red marble the first time is 1313.

(This is because 4 out of 12 marbles are red and412412 reduces to 1313.

The probability of selecting a red marble the second time is 1313.

The marble selections are independent and you can multiply the two probabilities to get the following:

probability of getting 2 reds = (13)2(13)2

=19=19.

So the probability of getting two reds is 1919.

7 0
2 years ago
Thế nào là hai góc đối đỉnh
Harlamova29_29 [7]

nào là hai doin dhn

??

8 0
2 years ago
Other questions:
  • Find two numbers with a sum of 20 and a difference of 14.
    9·2 answers
  • Which function has a range of y&lt;3?<br> y=3(2)<br> y=2(3)<br> O y=-(2)* +3<br> O y= (2)* - 3
    12·1 answer
  • can u help me on #7? when you get an answer the pick your answer on the second pic!!!! dont pick T or C!!!!
    13·2 answers
  • A person in a balloon which is 2,000 feet above the airport finds that the angle of depression to a ship out at sea is 21°. Find
    8·2 answers
  • 19) Write 987% in decimal form
    7·2 answers
  • Using the Quadratic Formula: x = −b ± b2− 4ac√2a solve for the following Quadratic trinomial: x2−10x + 4.75 Explain each step: 1
    14·1 answer
  • Please help me on this one i need it
    13·1 answer
  • The organizers of a walkathon get cost estimates from two printing companies to print brochures to advertise the event. The cost
    13·1 answer
  • A gold chain with an original price of $120 is on sale for $96. What is the percent of the discount?
    9·2 answers
  • The instructions for a model airplane show a scale of 1 in:
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!