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
strojnjashka [21]
3 years ago
5

What is the volume of a cylinder of radius 4cm and length of 8cm. famula π=3.14​

Mathematics
1 answer:
jarptica [38.1K]3 years ago
7 0

Answer:

401.92 cm^3

Step-by-step explanation:

The volume of a cylinder is given by

V = pi r^2 h  where r is the radius and h is the height

V = (3.14) (4)^2 *8

V= 401.92

You might be interested in
What is the largest number of pancakes that Benjamin can afford
aleksklad [387]

Answer:

See explanation

Step-by-step explanation:

Here is the complete question:

Benjamin decides to treat himself to breakfast at his favorite restaurant. He orders chocolate milk that costs $3.25. Then, he wants to buy as many pancakes as he can, but he wants his bill to be at most $30 before tax. The restaurant only sells pancakes in stacks of 4 pancakes for $5.50 . Let S represent the number of stacks of pancakes that Benjamin buys. What is the largest number of pancakes that Benjamin can afford?

Given:

Cost of chocolate milk = $3.25

Maximum bill that Benjamin wants before tax = $30

Cost of stack of 4 pancakes = $5.50

Let S be the number of stacks of pancakes that Benjamin buys

Solution:

Cost per stack of pancakes = $5.50  

Cost of S number of stacks of pancakes = S*5.50  = 5.50 S

So benjamin will spend money on 1 chocolate milk and S number of stacks of pancakes

Compute the total money spent by Benjamin:

Cost of chocolate milk + cost per stack of pancakes = 3.25 + 5.50 S

Maximum bill that Benjamin wants is $30 So,

The total money should be less than equal to the maximum bill that benjamin wants i.e. less than or equal to 30. So it is represented as:

3.25 + 5.50S ≤ 30  ----- (1)

Now using (1) we can find the largest number of pancakes that  Benjamin can afford :

3.25 + 5.50S ≤ 30

5.50S ≤ 30 - 3.25    

subtract 3.25 from 30

5.50S ≤ 26.75

Divide by 5.50

S ≤ 4.863636

S ≤ 4.86

S≤ 4 approx

Since the restaurant only sells pancakes in stacks of 4 pancakes so,

4 stacks = 4 *4 =  16

So the largest number of pancakes that Benjamin can afford are 16.

If we do not round off the the value stacks then we get:

4.86 stacks = 4.86 *4 =  19.44 pancakes

So the largest number of pancakes that Benjamin can afford are 19

3 0
3 years ago
What is the measure of 21? 100° 90° 80° 85° 95%​
Scorpion4ik [409]

Answer:

A quadrilateral's interior angles have a sum of 360°.

Given that we have 85°, 100°, and 90°(the right angle), and an unknown angle.

We can add these angles plus the unknown angle to equal a total of 360°.

85 + 100 + 90 + x(our unknown missing angle) = 360

simplify

275 + x = 360

Isolate x by subtract 275 from both sides;

-275       -275

x = 85, ∠1 = 85°

We can also double check:-

85 + 100 + 90 + <u>85</u> = 360

360 = 360 which is correct.

8 0
3 years ago
What are the real roots of 2x^3-42x-40
malfutka [58]
2x^3-42x-40=0
2x^3-42x=40
2x(x^2-21)=40
a. 2x=40=>x=20
b. x^2=21+40=>x^2=61=>x=+-(radical(61)
7 0
3 years ago
Dominic spent $8 on a book. He made $6 doing chores for a neighbor. What numbers represent the situations?
Katyanochek1 [597]

Answer:

-8 and 6

Step-by-step explanation:

he spent 8 on the book, therefore he had deduced 8 dollars, and earned 6, therefore he had increased 6 dollars

7 0
3 years ago
Read 2 more answers
A segment has endpoints at (15,−11) and (42,−11). How many units long is the segment?
Taya2010 [7]
\text {Length = }  \sqrt{(-11+11)^2 + (42-15)^2}

\text {Length = }  \sqrt{ (27)^2}

\text {Length = }  27 \text { units }
8 0
3 years ago
Other questions:
  • There are 45 children in a class. if 9 of them are absent, what percentage of the class is present?
    15·1 answer
  • What is the percent decrease from 350 to 70?
    6·1 answer
  • Carlos has 4 fifths of a tank of fuel in his car. He uses 1 tenth of a tank per day. How many days will his fuel last?
    9·2 answers
  • How much more is 1.8 • 10^11 greater than 7.2 • 10^10
    14·1 answer
  • Explain how to do this problem
    7·1 answer
  • PLEASE HELP
    11·1 answer
  • What expression can be written as 4 x (3 + 8)?
    15·2 answers
  • Can someone help me it is due today and I’m having trouble
    10·2 answers
  • HELP PLS- I WILL GIVE BRAINEST
    9·1 answer
  • PLS HELP ME!! THIS IS DUE TOMORROW
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!