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
motikmotik
2 years ago
10

The square root of 49 is how much less than four squared

Mathematics
2 answers:
Paul [167]2 years ago
5 0
The answer is 9
sqrt(49) = 7
4^2 = 16
16-7 = 9
DIA [1.3K]2 years ago
4 0
The answer is 9
sqrt(49) = 7
4^2 = 16
<span>16-7 = 9</span>
You might be interested in
PLEASE HELP!!!! I HAVE TO SUBMIT THIS IN AND I DONT KNOW!!
masya89 [10]

Answer:

your answer is clearly luke skywalker banana toungue

Step-by-step explanation:

because i felt like it

8 0
2 years ago
A machine, when working properly, produces 5% or less defective items. Whenever the machine produces significantly greater than
vovikov84 [41]

Answer:

The pvalue of the test is 0.0007 < 0.01, which means that we reject the null hypothesis and accept the alternate hypothesis that the percentage of defective items produced by this machine is greater than 5%.

Step-by-step explanation:

A machine, when working properly, produces 5% or less defective items.

This means that the null hypothesis is:

H_0: p \leq 0.05

Test if the percentage of defective items produced by this machine is greater than 5%.

This means that the alternate hypothesis is:

H_a: p > 0.05

The test statistic is:

z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}

In which X is the sample mean, \mu is the value tested at the null hypothesis, \sigma is the standard deviation and n is the size of the sample.

0.05 is tested at the null hypothesis:

This means that \mu = 0.05, \sigma = \sqrt{0.05*0.95}

A random sample of 300 items taken from the production line contained 27 defective items.

This means that n = 300, X = \frac{27}{300} = 0.09

Value of the test statistic:

z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}

z = \frac{0.09 - 0.05}{\frac{\sqrt{0.05*0.95}}{\sqrt{300}}}

z = 3.18

Pvalue of the test:

Testing if the mean is greater than a value, which means that the pvalue of the test is 1 subtracted by the pvalue of Z = 3.18, which is the probability of a finding a sample proportion of 0.09 or higher.

Looking at the Z-table, Z = 3.18 has a pvalue of 0.9993

1 - 0.9993 = 0.0007

The pvalue of the test is 0.0007 < 0.01, which means that we reject the null hypothesis and accept the alternate hypothesis that the percentage of defective items produced by this machine is greater than 5%.

5 0
3 years ago
How do you simplify 2i&lt;6u?
tiny-mole [99]
Try dividing both sides by 2.

Hope i helped :)

(It's kinda cool, because by dividing both sides by 2 we get !<3u :)
3 0
3 years ago
10 POINTS
yawa3891 [41]
About three years. Hope it helps!
4 0
3 years ago
Read 2 more answers
How do you solve 3 1/2- 2 2/5
Veseljchak [2.6K]
You would first have to find common denominators for the fractions. In this case it would be 10. So your new equation would be 3 5/10 - 2 4/10. Once you do this you can then subtract and solve getting the answer of 1 1/10
5 0
3 years ago
Other questions:
  • A particle decays at a rate of 0.45% annually. assume and initial amount of 300 mg. (
    14·1 answer
  • Trump or Joe Biden?​
    15·2 answers
  • A bookstore buys used paperback books based on their weight. The store pays a constant amount per pound. Danielle sold 8 pounds
    15·1 answer
  • What is y-5+3-9(y+2) and the work to go with it
    9·2 answers
  • Which of the following is a rational number but NOT an integer?
    12·2 answers
  • Mykel is picking out some movies to rent, and he has narrowed down his selections to 66 foreign films, 33 children's movies, 66
    8·1 answer
  • Can anyone explain to me why I got this wrong
    15·1 answer
  • I don't understand it<br>​
    14·1 answer
  • Work out the sizeof angle X
    13·1 answer
  • Please help me please
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!