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
den301095 [7]
3 years ago
15

What is the volume of a cylinder with a base radius of 2 and height of 9?

Mathematics
1 answer:
il63 [147K]3 years ago
6 0

Answer:

v ≈ 113.09

Step-by-step explanation:

v = πr^2*h

v = π*2^2*9

v = π*4*9

v = π*36

v = 113.097335529

hope this helps :)

You might be interested in
2n + 1.6 = 17.6 what is the value of n?​
Vinil7 [7]

Answer:

<h2><u><em>n = 8</em></u></h2>

Step-by-step explanation:

2n + 1.6 = 17.6 what is the value of n?​

2n + 1.6 = 17.6

2n = 17.6 - 1.6

2n = 16

n = 16 : 2

n = 8

-----------------

check

2n + 1.6 = 17.6

2*8+1.6=17.6

16+1.6=17.6

17.6=17.6

the answer is good

7 0
2 years ago
Read 2 more answers
Quick please no links or anything just the straight up answer answer both please
Serjik [45]
Answer: 42 degrees

Explanation: KFD=84 KFL is half of KFD(84)
84 divided by 2 = 42
4 0
2 years ago
It is desired to compare the hourly rate of an entry-level job in two fast-food chains. Eight locations for each chain are rando
notka56 [123]

Answer:

It can be concluded that at 5% significance level that there is no difference in the amount paid by chain A and chain B for the job under consideration

Step by Step Solution:

The given data are;

Chain A 4.25, 4.75, 3.80, 4.50, 3.90, 5.00, 4.00, 3.80

Chain B 4.60, 4.65, 3.85, 4.00, 4.80, 4.00, 4.50, 3.65

Using the functions of Microsoft Excel, we get;

The mean hourly rate for fast-food Chain A, \overline x_1 = 4.25

The standard deviation hourly rate for fast-food Chain A, s₁ = 0.457478

The mean hourly rate for fast-food Chain B, \overline x_2 = 4.25625

The standard deviation hourly rate for fast-food Chain B, s₂ = 0.429649

The significance level, α = 5%

The null hypothesis, H₀:  \overline x_1 = \overline x_2

The alternative hypothesis, Hₐ:  \overline x_1 ≠ \overline x_2

The pooled variance, S_p^2, is given as follows;

S_p^2 = \dfrac{s_1^2 \cdot (n_1 - 1) + s_2^2\cdot (n_2-1)}{(n_1 - 1)+ (n_2 -1)}

Therefore, we have;

S_p^2 = \dfrac{0.457478^2 \cdot (8 - 1) + 0.429649^2\cdot (8-1)}{(8 - 1)+ (8 -1)} \approx 0.19682

The test statistic is given as follows;

t=\dfrac{(\bar{x}_{1}-\bar{x}_{2})}{\sqrt{S_{p}^{2} \cdot \left(\dfrac{1 }{n_{1}}+\dfrac{1}{n_{2}}\right)}}

Therefore, we have;

t=\dfrac{(4.25-4.25625)}{\sqrt{0.19682 \times \left(\dfrac{1 }{8}+\dfrac{1}{8}\right)}} \approx -0.028176

The degrees of freedom, df = n₁ + n₂ - 2 = 8 + 8 - 2 = 14

At 5% significance level, the critical t = 2.145

Therefore, given that the absolute value of the test statistic is less than the critical 't', we fail to reject the null hypothesis and it can be concluded that at 5% significance level that chain A pays the same as chain B for the job under consideration

3 0
2 years ago
You can think about the word ‘of’ when you multiply.
Vlada [557]

Answer:

23 \: of \: 6 \\ 23 \times 6 \\  =  >  \frac{ \binom{23}{ \times 6} }{138}  \\ 23 \: of \: 6 = 138

4 0
2 years ago
Read 2 more answers
What is the method used when the objective is to determine the cause and effect relationship of a certain phenomenon under contr
jenyasd209 [6]

Answer: A

Explaination:
The cause and effect relationship of a certain phenomenon under controlled condition

5 0
1 year ago
Other questions:
  • Anybody want to help me in math please please i will really appreciate it
    15·1 answer
  • I need too know what is 8×25×23?
    7·2 answers
  • Leila ran for president of the chess club, and she received 36 votes. There were 40 members in the club. What percentage of the
    13·1 answer
  • Turn 3.7105425043 into a fraction
    10·1 answer
  • The function f(t)= 15,000(0.86)' models the value , in dollars, of a used car t years after it is purchased. What is the value o
    14·1 answer
  • Carmen, Reuben, and Jim sent a total of 156 text messages over their cell phones during the weekend. Jim sent 6 fewer messages t
    13·1 answer
  • Harold had a summer lemonade
    6·1 answer
  • Grades on a standardized test are known to have a mean of 1000 for students in the United States. The test is administered to 45
    12·1 answer
  • The angle measurements in the diagram are represented by the following expressions.
    13·1 answer
  • Kate spun the spinner 75 times and landed on 330 times what is the experimental probability as a percentage
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!