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Karolina [17]
3 years ago
11

Find the area of the shaded region. The graph depicts the standard normal distribution of bone density scores with mean 0 and st

andard deviation 1.

Mathematics
1 answer:
SashulF [63]3 years ago
7 0

Answer:

0.7233

Step-by-step explanation:

We want to find the area between the z-scores z=-0.95 and z=1.25.

We first find the area to the left of each z-score, and subtract the smaller area from the bigger one.

For the area to the left of z=-0.95, we read -0.9 under 5 from the standard normal distribution table.

This gives P(z<-0.95)=0.1711

Similarly the area to the left of z=1.25 is

P(z<1.25)=0.8944

Now the area between the two z-scores is

P(-0.25<z<1.25)=0.8944-0.1711=0.7233

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Maria boards boards a car at the bottom of a ferris wheel. she rides to the top and then it stops. maria tells her friends they
DaniilM [7]

Maria is wrong because they have completed 1/2.

Step-by-step explanation:

At the top of the Ferris wheel,the ride is 1/2 done. All that is left is to go down,which is the other half. Maria is wrong in saying they are 1/4 done,that is a quarter,not half.

6 0
3 years ago
If a sphere's volume is doubled, what is the corresponding change in its radius? A. The radius is increased to 20 times the orig
RoseWind [281]

Answer:

The radius is increased by 1.2599 times the original size.

Step-by-step explanation:

The volume is 3 dimensional whereas the radius is one dimensional.

Therefore the factor for the  radius will be the cube root of the factor for the volume.

So the radius is increased by 1.2599.

8 0
3 years ago
Simplify (10^-2)^4 djjdejieoeiieis
sergejj [24]

Answer:

10^-8

Step-by-step explanation:

3 0
3 years ago
What is the solution to the following 21+x=13​
Hitman42 [59]

Answer:x=-8

Step-by-step explanation:subtract 21 from both sides then simplify 31-21 to -8

7 0
3 years ago
PLEASE HELP!<br>Calculate $40^{13} \pmod{85}.$
SVEN [57.7K]
In this type of calculations, we decompose 13 by checking the lowest powers of the base, that is 40. for example we check 40^2, or 40^3 and compare it to 85

Notice

40*40*40=64,000

so we check how many time does 85 fit into 64,000:

64,000/85=752.94

85*753=64,005;       64000-64,005=-5

this means that 

40^{3} =-5\pmod{85}

thus

40^{13} =40^{3*4+1}={(40^{3})}^{4}*40=(-5)^{4}*40 \pmod{85}=\\\\625*40\pmod{85}=(7*85+30)*40\pmod{85}=30*40\pmod{85}\\\\=1200\pmod{85}=(14*85+10)\pmod{85}=10\pmod{85}


Answer: 10 (mod85)

Remark, the set of all solutions is:

{......-75, 10, 95, .....}, that is 85k +10
7 0
3 years ago
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