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Katarina [22]
2 years ago
10

7. The amount of time it takes an athlete to complete a Ninja warrior course is normally distributed with mean 8.25 minutes and

standard deviation 0.4 minutes.
What percent of athletes complete the course in less than 7.5 minutes?
A00304
B. 05134
01342
0.3892
Mathematics
1 answer:
otez555 [7]2 years ago
4 0
The answer is c I think
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In two or more complete sentences, describe how you would draw the graph of the solution set for the following inequality.
vovikov84 [41]

Answer:

Step-by-step explanation:

Like this:

4 0
2 years ago
Read 2 more answers
A 2.5​ ft wide circular track for a camera dolly is set up for a movie scene. The two rails of the track form concentric circles
Deffense [45]

Answer:

15.71 ft

Step-by-step explanation:

Given that:

width of the circular track = 2.5ft

Suppose the radius of the inner circle is 57 ft since it is not given

Then the radius of the outer circle = (2.5 + 57) ft = 59.5 ft

The circumference of a circle = 2πr

For inner circle now, the circumference = 2 × π × 57 ft

For inner circle now, the circumference = 358.14 ft

For the outer circle, the circumference = 2 × π × 59.5 ft

For the outer circle, the circumference = 373.85 ft

The difference between the circumference of the outer wheel from the inner wheel shows how farther does a wheel on the outer rail travel than a wheel on the inner rail of the track in one​ turn

∴

= ( 373.85 - 358.14 ) ft

= 15.71 ft

6 0
3 years ago
Did I get this right or no I didn’t
Nezavi [6.7K]

Answer:

its correct bro ;) click next

7 0
3 years ago
5.1% < 0.51 please help been working on this all day I really need help
WITCHER [35]
You can write any decimal as a precent by moving the decimal 2 places to the right so 
0.51 = 51%
5.1% < 51%
5.1% < 0.51

or, any precent can be written as a decimal by moving the decimal points two point to the left so
5.1% = 0.051
0.051 < 0.51
5.1% < 0.51

7 0
3 years ago
It's on the image the question
ioda

Answer:

Ok, so I hope I understood the task. Here goes nothing

Step-by-step explanation:

So, first we calculate the area of the big rectangle,

(√63+√28)*√45 = 15√35

Then we calculate the area of the small rectangle

√7*√5 = √35

Then we do this to get the area left

15√35 - √35 = 14√35

Then we take

14 \sqrt{35 }  \div 15 \sqrt{35}  =  \frac{14}{15}

That should explain it

4 0
2 years ago
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