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
inna [77]
2 years ago
13

A cylindrical candle has a volume of approximately 400cm^3 and is 8 cm tall. What is the radius of the candle?

Mathematics
2 answers:
katrin2010 [14]2 years ago
6 0

Answer:

<h2><u>Solution</u><u> </u><u>:</u><u>-</u></h2>

We know that

V = πr²h

400 = 22/7 × r² × 8

400 × 7 = 22 × 7r²

2800 = 154r²

2800/154 = r²

18 ≈ r²

4.2 = r

ddd [48]2 years ago
4 0

Answer: r = 4.2

Step-by-step explanation: hope this helps

have a nice day

You might be interested in
Helppp i need answer now will give points
Papessa [141]

Answer:

f(g(3)) = 3

Step-by-step explanation:

We are told to solve for f(g(3)). This is also saying f of g of 3.

To find f(g(3)), we need to plug 3 in for x in g(x), since it says g(3).

g(x) = 3(3) - 4

Solve.

= 9 - 4

g(x) = 5

Now, we plug that into f(x), because g(x) was placed inside f and replaces the x variable of f(x).

f(5) = 2(5) - 7

Solve.

= 10 - 7

f(5) = 3.

f(g(3)) = 3

#teamtrees #WAP (Water And Plant)

4 0
3 years ago
Sean earns $8.50 per hour and made a total of $80.75 today. How many hours did he work?
Vesnalui [34]

Answer: 9.5 hours

In order to solve this, you must divide his total (80.75) by his hourly wage (8.50) When you do that, you get 9.5, so he worked 9.5 hours

Step-by-step explanation:

3 0
3 years ago
What is the value of x
barxatty [35]
X = 15


X + 90 = 7x

X = 7x - 90

X - 7x = -90

-6x = 90

Divide both sides by -6

X = 15
3 0
3 years ago
Malcolm buys a 5/6-pound bag of black beans and a 3/4-pound bag of pinto
Sav [38]
Find the common denominator of 5/6 and 3/4 then add
3 0
2 years ago
Read 2 more answers
Solve the equation by factoring. z2 − 6z − 27 = 0
Kisachek [45]
The answer is x= 9 and -3

You must fine 2 number that multiply to equal -27 and add to equal -6

(x-9) (x+3)
Then equal the parts of the binomial to zero

x - 9 = 0
x + 3 = 0

You must get x by its self.
When you do so, you'll have the answer as -3 and 9
7 0
3 years ago
Other questions:
  • if your car gets 34 miles per gallon of gas and you have traveled 153 miles, how many gallons of gas have you used?
    12·2 answers
  • Please help with the question in the photo below.
    6·2 answers
  • Andy bought 3 bags of a new birdseed mixture on sale. The birds in his yard like it so well that his friend Mike bought 5 bags.
    15·1 answer
  • Peng bought 26 treadmills for her new fitness center at $1,334 each. Then, she bought 19 stationary bikes for $749 each. How muc
    15·1 answer
  • 20.
    5·1 answer
  • On the number line about RT = 1/6. Point s ( not shown) is located between point r and point t. Which value is below is a possib
    12·1 answer
  • Which expression can be used to find the retail price of an item that was bought at wholesale for $112 and sold at a 40% markup?
    10·2 answers
  • Which could be the first step in simplifying this expression? Check all that apply.
    15·1 answer
  • Which word is a synonym of obsolete? HELPPP MEEE PLZZZ
    8·2 answers
  • QS and RT are diagonals of parallelogram QRST. RT = 21, SU = 9, and angle RQT = 101. Find RU and QS.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!