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
Vlad [161]
3 years ago
11

9. A submarine dove 400 feet. It then

Mathematics
1 answer:
IgorLugansk [536]3 years ago
7 0

Answer:

360 feet

Step-by-step explanation:

you can multiply 18 by 20 or set up a proportion

You might be interested in
A study found that, in 2005, 12.5% of U.S. workers belonged to unions (The Wall Street Journal, January 21, 2006). Suppose a sam
Julli [10]

Answer:

There is not enough evidence to support the claim that union membership increased.  

Step-by-step explanation:

We are given the following in the question:

Sample size, n = 400

p = 12.5% = 0.125

Alpha, α = 0.05

Number of women belonging to union , x = 52

First, we design the null and the alternate hypothesis  

H_{0}: p = 0.125\\H_A: p > 0.125

The null hypothesis sates that 12.5% of U.S. workers belong to union and the alternate hypothesis states that there is a increase in union membership.

This is a one-tailed(right) test.  

Formula:

\hat{p} = \dfrac{x}{n} = \dfrac{52}{400} = 0.13

z = \dfrac{\hat{p}-p}{\sqrt{\dfrac{p(1-p)}{n}}}

Putting the values, we get,

z = \displaystyle\frac{0.13-0.125}{\sqrt{\frac{0.125(1-0.125)}{400}}} = 0.3023

Now, we calculate the p-value from the table.

P-value = 0.3812

Since the p-value is greater than the significance level, we fail to reject the null hypothesis and accept the null hypothesis.

Conclusion:

Thus, there is not enough evidence to support the claim that union membership increased.

8 0
2 years ago
Two sides of a triangle have lengths 7 and 13.<br><br> The third side has a length that is
adell [148]

Answer:

19?

Step-by-step explanation:

4 0
2 years ago
Molly painted a line around the entire perimeter of the basketball court. The length of the court was 32 meters and the width wa
xz_007 [3.2K]
The answer is 98 meters :)
5 0
3 years ago
1 ball of wool is 125m, how many balls are there with 604m??
forsale [732]

Answer:

4.8 balls of wool

Step-by-step explanation:

604÷125=4.8

6 0
2 years ago
8-2b=-2(b=-3;b=0;b=5)
lions [1.4K]
Ekgful4y98pyr89495yt82h9
4 0
3 years ago
Read 2 more answers
Other questions:
  • The equation 1/reserve rate= money multiplier shows the relationship between the reserve rate and the money multiplier, regardle
    8·1 answer
  • I need help! Answer as fast as you can. Marking brainlyiest
    5·1 answer
  • If Jennifer makes $12 per hour and works 48 hours each week. She gets paid holidays off and 1 week of paid vacation. How much mo
    14·1 answer
  • F(x)=2+3cosπ/10(x−3) Find the third positive value of x for which f(x) = 4.
    10·1 answer
  • Find the value of X. Please help ASAP!! I have no idea how to do this and I have to have it done soon!!
    14·1 answer
  • Determine the regression equation for the data. Round the final values to three significant digits, if necessary.
    6·1 answer
  • Risks of high blood pressure <br> Is a gender related to high blood pressure?
    6·2 answers
  • One-half of the sum of 8 and x. write in algebraic expression
    15·1 answer
  • PLEASE HELP!!!<br><br> Find the sum of all solutions to the equation 4x(x-3) = 23.
    11·1 answer
  • (a) By what least number must 27 be divided to make it perfect square​
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!