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
sukhopar [10]
3 years ago
6

A cylinder has a volume of 245 cubic units and a height of 5 units. The diameter of the cylinder is 7 units 14 units 49 units

Mathematics
2 answers:
mrs_skeptik [129]3 years ago
7 0

Answer:

<em>The diameter is 7.9 units. The option closest to it is 7 units.</em>

Step-by-step explanation:

The formula for volume of cylinder is = V = \pi r^{2} h

We have been given that the volume of the cylinder is 254 cubic units.

The height is given as = 5 units

We have to find the diameter of the cylinder.

Putting the values in the formula we get:

245=3.14*r^{2} *5

r^{2} = \frac{245}{3.14*5}

r^{2} =15.60

This gives r = 3.95 units

Now diameter is double of radius so, diameter is = 2*3.95=7.9 units.

The diameter is 7.9 units. The option closest to it is 7 units.

We can check the validity of the answer by putting r=3.95 in the formula.

3.14*3.95^{2}*5 = 244.959 ≈ 245 cubic units.

nalin [4]3 years ago
4 0
Volume=(pi)(radius^2)(height)
245(pi)=(pi)(r^2)(5)
245=(r^2)(5)
49=r^2
radius=7
diameter=14
You might be interested in
Ava's credit card balance is $64. If she makes a $25 payment, then charges $79, find the balance on the card.
DiKsa [7]
Answer : 118 or -40


Explanation I didn’t know which one you meant
6 0
3 years ago
if 1/4 of a gallon of paint is needed to paint 2/3 of a fence, how many gallons are needed to paint the entire fence? site:socra
trasher [3.6K]

\bf \begin{array}{ccll} \stackrel{paint}{gallons}&fence\\ \cline{1-2} \\\frac{1}{4}&\frac{2}{3}\\\\ x&1 \end{array}\implies \cfrac{~~\frac{1}{4}~~}{x}=\cfrac{~~\frac{2}{3}~~}{1}\implies \cfrac{~~\frac{1}{4}~~}{\frac{x}{1}}=\cfrac{2}{3}\implies \cfrac{1}{4}\cdot \cfrac{1}{x}=\cfrac{2}{3} \\\\\\ \cfrac{1}{4x}=\cfrac{2}{3}\implies 3=8x\implies \cfrac{3}{8}=x

7 0
3 years ago
Read 2 more answers
15PTS PLEASE HELP ASAP!<br> (dont write random answers pls!)
Tcecarenko [31]

Answer:

52

Step-by-step explanation:

.................................

4 0
3 years ago
Read 2 more answers
So teacher asked her to find 42.6÷10 to the second power how many places in what direction should sue move the decimal point to
ki77a [65]

move the decimal point 2 places to the left

42.6 / 10^{2} = 0.426


4 0
3 years ago
For consumers making purchases online, 60% have devices made by Apple, 85% own a smartphone, and 75% use Venmo. Also, out of the
kompoz [17]

Answer:

The probability that a customer selected at random has an Apple device or own a smartphone or both is 0.94

Step-by-step explanation:

The percentage of costumers that have a device made by Apple = 60%

The percentage of customers that own a smartphone = 85%

The percentage of customers that use Venmo = 80%

The percentage out of the smartphone users that use Venmo = 80%

The probability both independent events A and B occurring = P(A) × P(B)

The exclusive probability of A or B occurring P(A XOR B) = P(A) + P(B) - 2 × P(A ∩ B)

Therefore, the probability of A or B or both occurring is given as follows;

P(A or B or Both) = P(A) + P(B) - 2 × P(A ∩ B) + P(A) × P(B)

Where A represent the percentage of costumers that have a device made by Apple and let B represent the percentage of users that have a smartphone, we have;

P(A or B or Both) = 0.6 + 0.85 - 2×0.6×0.85 + 0.6 × 0.85 = 0.94

Therefore, the probability that a customer selected at random has an Apple device or own a smartphone (or both), P(A or B or Both) = 0.94

5 0
3 years ago
Other questions:
  • Give a big-o estimate for the number of operations (where an operation is an addition or a multiplication) used in this segment
    12·1 answer
  • Does 2/5 round to 1/2
    5·1 answer
  • If cos28 = x/4, find x(3sf)
    10·1 answer
  • On line A, each time x increases by 1 y increases by
    11·2 answers
  • X^3-8=0 show all work please
    6·1 answer
  • Complete the statement below to show how bill can decrease 160 by 6
    9·1 answer
  • Some good f the Aliens have hairs on their heads that change color according to their emotions. If they're pleased hairs turn or
    15·1 answer
  • Andre earns $4,000 a month at his new job in order to track his spending and saving he created a monthly budget. Andre divided h
    12·1 answer
  • Write and solve an equation to determine the measures of the angles in each
    13·1 answer
  • How to Estimate √40 to the nearest tenth.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!