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
Masja [62]
3 years ago
7

Help a sphere has a radius of 8ft if the radius is doubled what is the effect on volume

Mathematics
1 answer:
nasty-shy [4]3 years ago
6 0
If the radius of the sphere is doubled, the volume would quadruple. Think of the sphere as a cube instead and if you were to double the sides, the area would be 4xs bigger. Hope this helps! :)
You might be interested in
Write the phrase as a rate in simplest form 260 inches in 15 seconds ?
Lemur [1.5K]

Answer:

52:3

Step-by-step explanation:

divide 260 by 5 and 15 by 5

260 divided by 5 = 53

15 divided by 5 = 3

260:15 = 52:3


4 0
3 years ago
Read 2 more answers
-2(x+6)+3= -11x+4(x+4)
Katarina [22]
Distribute 
-2(x+6)+3
-2x-12+3
-2x-12+3=-11x+4(x+4)
Distribute 
4(x+4)
4x+16
-2x-12+3=-11x+4x+16
Combine Numbers && Variables 
-2x-9=-7x+16
Add The 7 Over To The -2x 
5x-9=16
Add 9 Over To 16 
5x=25
x=5 
So 5 Is Your Answer

~Hope This Helps :)
Need More Help With Question Just Inbox Me 
Also Rate, Give Thanks, And Mark As Brainiliest. 
Thank You ;) 
3 0
3 years ago
Evaluate x + sq root(yz) when x = 3, y = 2, and z = –8.
Alex_Xolod [135]
Just remember  \sqrt{-1} = i

Sub in the numbers:
3 + \sqrt{-16} = 3+  \sqrt{16}\sqrt{-1} = 3 + 4i
7 0
3 years ago
Show how you can make a ten to find the sum. 8+5=__10+__=__
klio [65]
8 + 5 = 13
10 + 3 = 13 
i think thats what you asking right

7 0
3 years ago
Read 2 more answers
Hydrocodone bitartrate is used as a cough suppressant. After the drug is fully absorbed, the quantity of drug in the body decrea
maw [93]

Answer:

a. dQ/dt = -kQ

b. Q = 9e^{-kt}

c. k = 0.178

d. Q = 1.063 mg

Step-by-step explanation:

a) Write a differential equation for the quantity Q of hydrocodone bitartrate in the body at time t, in hours, since the drug was fully absorbed.

Let Q be the quantity of drug left in the body.

Since the rate of decrease of the quantity of drug -dQ/dt is directly proportional to the quantity of drug left, Q then

-dQ/dt ∝ Q

-dQ/dt = kQ

dQ/dt = -kQ

This is the required differential equation.

b) Solve your differential equation, assuming that at the patient has just absorbed the full 9 mg dose of the drug.

with t = 0, Q(0) = 9 mg

dQ/dt = -kQ

separating the variables, we have

dQ/Q = -kdt

Integrating we have

∫dQ/Q = ∫-kdt

㏑Q = -kt + c

Q = e^{-kt + c}\\Q = e^{-kt}e^{c}\\Q = Ae^{-kt}               (A = e^{c})

when t = 0, Q = 9

Q = Ae^{-kt}               \\9 = Ae^{-k0}\\9 = Ae^{0}\\9 = A\\A = 9

So, Q = 9e^{-kt}

c) Use the half-life to find the constant of proportionality k.

At half-life, Q = 9/2 = 4.5 mg and t = 3.9 hours

So,

Q = 9e^{-kt}\\4.5 = 9e^{-kX3.9}\\\frac{4.5}{9} = e^{-kX3.9}\\\frac{1}{2} = e^{-3.9k}\\

taking natural logarithm of both sides, we have

ln\frac{1}{2} = ln(e^{-3.9k})\\\\-ln2 = -3.9k\\k = -ln2/-3,9 \\k = -0.693/-3.9\\k = 0.178

d) How much of the 9 mg dose is still in the body after 12 hours?

Since k = 0.178,

Q = 9e^{-0.178t}

when t = 12 hours,

Q = 9e^{-0.178t}\\Q = 9e^{-0.178X12}\\Q = 9e^{-2.136}\\Q = 9 X 0.1181\\Q = 1.063 mg

7 0
3 years ago
Other questions:
  • Is 4/16 equivalent to 0.25 and explain
    8·1 answer
  • <img src="https://tex.z-dn.net/?f=%20log_%7B3%7D%28%20%7Bx%7D%5E%7B2%7D%20%20-%20x%20-%202%29%20%3D%202%20log_%7B3%7D%28x%20%2B%
    13·1 answer
  • Suppose you cut a small square from a square of fabric as shown in the diagram. Write an expression for the remaining shaded are
    8·1 answer
  • (2,4);slope=1/2<br><br> (-8,-1);slope=-3/4
    13·1 answer
  • Elaine bought 3 4/5 pounds of apples for $1.99 per pound, 3/4 pound of pears for $2.25 per pound, and 3 2/3 pounds bananas for $
    11·2 answers
  • Louisa ran at an average speed of five miles per hour along an entire circular park path. Calvin ran along the same path in the
    15·1 answer
  • Marcy is making a hooked circle shaped rug for her mother. The circumference of the circle shaped rug is 56.52 inches. What is t
    5·1 answer
  • Hey guys i need help :) :) <br> its due tomorrow so plz hurry :) :)
    14·2 answers
  • What is the slope of a line perpendicular to y=-x?
    8·2 answers
  • You give 1/2 up a $46,000 salary to go back to school for 5 years. The total cost for going to school is $22,000. How much money
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!