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
boyakko [2]
3 years ago
14

A nurse worked from 8:15 A.M. until 11:30 A.M. and

Mathematics
2 answers:
Juli2301 [7.4K]3 years ago
8 0
The answer is a because 8:15 am to 11:30 am is 3 hours and 15 minutes. 12:30 pm to 4:15 pm is 3 hours and 45 minutes. 45 mins + 15 mins = 60 mins which is an hour. 3 hrs + 3 hrs + 1 hr = 7 hrs
Marina CMI [18]3 years ago
5 0

Answer:

D 8hr

Step-by-step explanation:

I say this because from 8:15

to 11:30 that will give you 2 hours and 45 minutes 12:30  to 4:15 will give you 4 hours and 45 minutes and if you add it all together you will get 8hr

2 hours     45

4 hours     45

6 hours     90 + 90 + 180

<u>                </u>

You might be interested in
If a figure located at T(-3, -1), U(1, -2), V(2, 2), W(-1, 1) and is rotated 90∘ counterclockwise rotation about the origin, whi
damaskus [11]

Answer:

(1, - 3 )

Step-by-step explanation:

Under a counterclockwise rotation about the origin of 90°

a point (x, y ) → (- y, x ), thus

T(- 3, - 1 ) → T'(1, - 3 )

3 0
3 years ago
There is a stack of books that is 12 4/9 inches tall. If we take a book off the stack that is 2/9 inches thick. How high is the
Yanka [14]

Answer: It would be 12 2/9

Step-by-step explanation: 4/9-2/9=2/9 Hope this helps!:)

7 0
3 years ago
A survey of 90 men found that an average amount spent on St. Patrick's day of $55 with a standard deviation of $18. A similar su
dem82 [27]

Answer:

The value of the test statistic is 4.70.

Step-by-step explanation:

The hypothesis for this test can be defined as follows:

<em>H</em>₀: Men do not spend more than women on St. Patrick's day, i.e. μ₁ = μ₂.

<em>H</em>ₐ: Men spend more than women on St. Patrick's day, i.e. μ₁ > μ₂.

The population standard deviations are not known.

So a <em>t</em>-distribution will be used to perform the test.

The test statistic for the test of difference between mean is:

t=\frac{\bar x_{1}-\bar x_{2}}{\sqrt{\frac{s^{2}_{1}}{n_{1}}+\frac{s^{2}_{2}}{n_{2}}} }

Given:

\bar x_{1}=55\\s_{1}=18\\n_{1}=90\\\bar x_{1}=44\\s_{1}=16\\n_{1}=86

Compute the value of the test statistic as follows:

t=\frac{\bar x_{1}-\bar x_{2}}{\sqrt{\frac{s^{2}_{1}}{n_{1}}+\frac{s^{2}_{2}}{n_{2}}} }=\frac{55-44}{\sqrt{\frac{15^{2}}{90}+\frac{16^{2}}{86} }}=4.70

Thus, the value of the test statistic is 4.70.

7 0
3 years ago
A rectangular prism has a height of 3,a length of 4,and a width of 12,what is the surface area?
NNADVOKAT [17]
It would be 144 to the 2 power

4 0
3 years ago
Read 2 more answers
Noah spent 25 hours working on his car. He spent 4/5 of his time working on the transmission. How much time did Noah spend worki
xenn [34]

Answer:

5 hours

Step-by-step explanation:

4/5 is 20 of 25, so there are 5 hours left which is your answer!

6 0
3 years ago
Other questions:
  • Solve for n. PLZ HALP
    8·1 answer
  • What is the order of 75%, 1/3, 3/8, and 0.625 from least to greatest? Also, please please explain how to do it...I’m having trou
    15·2 answers
  • In a survey, 135 adults were asked where they prefer to live. Complete the two-way frequency table. Which statement is true? Sel
    15·1 answer
  • What is 55 divided by 11 + 7 x(2+14)
    8·1 answer
  • You are looking at two area rugs for your bedroom. One is a square with a side length of 6.3 feet. The other is a rectangle that
    7·1 answer
  • #14 Helppppp me plz this make no sense to me
    12·2 answers
  • Find the sum of the first 5000 odd numbers.
    12·2 answers
  • 7th grade math help me please :))
    11·1 answer
  • Anyone? Plz can you help me
    10·1 answer
  • Use the functions f (x)= –x^2 + 8x – 11, g(x) = 14 - 2/3x,and h(x) = -x – 7 to find each function value.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!