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marissa [1.9K]
4 years ago
10

A set of data items is normally distributed with a mean of 150 and a standard deviation of 20. Convert 110 to a z-score

Mathematics
1 answer:
Bogdan [553]4 years ago
7 0
Z score  = value - mean
                ------------------  =   (110 - 150 ) / 20 =  -2
                     std dev
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The storm dropped 1 3/12 feet of snow during the first hour and 9/12 foot more during the second hour. how much snow fell during
Evgen [1.6K]

Answer:

your answer would be 2

Step-by-step explanation:

Convert 1 3/12 into an improper fraction which is 5/4

Then add it with 9/12

5

/4  + 9

/12

(5 × 12) + (9 × 4)

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

        4 × 12

= 96/48

=    96 ÷ 48

 -------------------

     48 ÷ 48

= 2

2 is your answer hope this helps :)

7 0
4 years ago
Read 2 more answers
If an object takes 7 second to fall to the ground, what was its initial height? Show your work.
Verdich [7]

Answer:240.1 m

Step-by-step explanation:

We are given the following equation that models the the time it takes to an object to fall to the ground:

t_{(H)}=\sqrt{\frac{2H}{g}}

Where:

t_{(H)}=7 s is the time it takes to the object to fall to the ground

H is the object's initial height

g=9.8 m/s^{2} is the acceleration due gravity

Isolating H:

t^{2}=(\sqrt{\frac{2H}{g}})^{2}

t^{2}=\frac{2H}{g}}

H=\frac{t^{2}g}{2}

Solving with the given data:

H=\frac{(7 s)^{2}(9.8 m/s^{2})}{2}

H=240.1 m This is the initial height

8 0
3 years ago
There are 4 pizzas and 3 people. How much would each person get if each person had the same amount?
julia-pushkina [17]
Each person would have 4/3 of a pizza, or C. 
6 0
3 years ago
Read 2 more answers
7. Add [-6-2 2] + [-3 2 1].<br><br> A. [-9-3-5]<br> B. [-3 0 3]<br> C. [-6 0 3]<br> D. [-9 0 3]
eimsori [14]
OPTION D is the right answer
3 0
3 years ago
331 students went on a field trip. six buses were filled and 7 students traveled in cars. How many were in each bus? Write an eq
mart [117]
So this problem would be written as this(:

so you start with 331 students together, but then you lose 7 who travel in the cars.

331-7=324

then it would be 324 divided by the 6 buses. that would look like this

324/6
that equals 54.
so in conclusion the answer is 54 students went into each bus:) hope that helps you!
3 0
3 years ago
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