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
Lerok [7]
3 years ago
7

Please help 100 point and brainliest

Mathematics
1 answer:
stiv31 [10]3 years ago
5 0

Answer:

B

Step-by-step explanation:

all of the answers equal 7

You might be interested in
How do you do this???????????????????
Akimi4 [234]
The volume of water that goes into the hose is the same as the volume of water that comes out the nozzle. This means the velocity is inversely proportional to the area. The area is proportional to the square of the diameter.

Taken together, these facts mean that if the diameter is divided by a factor of 3, the velocity is multiplied by a factor of 3^2 = 9.

Nozzle velocity = 3^2 * entering velocity
.. = 9 * (4 m/s)
Nozzle velocity = 36 m/s . . . . . . . . . corresponding to selection A
7 0
4 years ago
Is a letter or symbol that represents the unknown value (term)​
Lisa [10]

Variable

Step-by-step explanation:

6 0
3 years ago
Your boss tells you that she knows the length of the widgets your company makes is normally distributed with a mean of 25 inches
sp2606 [1]

Answer:

Mean of sampling distribution = 25 inches

Standard deviation of sampling distribution = 4 inches

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 25 inches

Standard Deviation, σ = 12 inches

Sample size, n = 9

We are given that the distribution of length of the widgets is a bell shaped distribution that is a normal distribution.

a) Mean of the sampling distribution

The best approximator for the mean of the sampling distribution is the population mean itself.

Thus, we can write:

\bar{x} = \mu = 25\text{ inches}

b) Standard deviation of the sampling distribution

s = \dfrac{\sigma}{\sqrt{n}} = \dfrac{12}{\sqrt{9}} = 4\text{ inches}

8 0
3 years ago
Addison's Cafe offers two kinds of espresso: single-shot and double-shot. Yesterday afternoon, the cafe sold 70 espressos in all
Valentin [98]

Answer:

The number of single-shot espressos sold by the cafe was 49.

Step-by-step explanation:

It is provided that Addison's Cafe offers two kinds of espresso: single-shot and double-shot.

Total number of espressos sold by the cafe yesterday afternoon was,

<em>N</em> = 70

The proportion of single-shot espresso sold was, <em>p</em> = 0.70.

Let <em>X</em> = number of single-shot espressos sold.

Compute the number of single-shot espressos sold by the cafe as follows:

E(X)=N\times p

         =70\times 0.70\\=49

Thus, the number of single-shot espressos sold by the cafe was 49.

6 0
3 years ago
Can someone help me please!!
Furkat [3]
About 31.16 feet.

You just multiply 9.5 m by 3.28 ft.... but it you need to round it to the nearest feet, it would be 31 ft.

Hope it helps!
4 0
3 years ago
Other questions:
  • Write an expression that can be used to multiply 6 times 198 mentally
    15·1 answer
  • I really need help with this. Extra points for answer. Please help ASAP!
    7·1 answer
  • The probability experiment “roll a fair die three times and record the numeral on the upper face after the die becomes a station
    13·1 answer
  • What is the y-intercept of the equation of the line that is perpendicular to the line v= x -x+ 10 and passes through the
    8·1 answer
  • Jared places five cards that are labeled 1 to 5 face down on the table and mixes them up.
    7·2 answers
  • Determine if the figures are similar. If they are, what is the scale factor from the first figure to the second figure?
    10·1 answer
  • 6,12,24,48 Find the 11'th term
    12·1 answer
  • Anyone have a link to a good 8th grade study guide for math?
    9·1 answer
  • Which is the mode for the data set? −1, 0, 3, 4, −3, −1 <br> 0.3 −1 2 −0.5
    12·1 answer
  • Which physical feature is shown?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!