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katrin2010 [14]
2 years ago
7

The times for running a 5K for a local charity event are Normally distributed, with a mean time of 28 minutes and

Mathematics
2 answers:
aev [14]2 years ago
8 0

Answer:

Answer: D- 37.45

Step-by-step explanation:

I got the answer right, but if you want the math: you find the z-score of 1.75 on the chart, multiply that by the standard deviation to get 9.45, and then add the mean of 28 to get 37.45 minutes

liq [111]2 years ago
7 0

Answer:19.12

I’m not sure if this is the answer but I need the points so here.

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Please answer this correctly
yulyashka [42]

Answer:

<em>514 square meters</em>

Step-by-step explanation:

Consider the length of p;

11 * p * 3 = 528,\\33 * p = 528,\\p = 528 / 33 = 16 meters

11, 3, and p act as the length, width, and height of this rectangular prism. We can apply the volume formula length * width * height, and thus made 11 * p * 3 equivalent to the volume 528. Now let us determine the surface area;

Area of Side 1 = 16 * 11 = 176 square meters,\\Area of Side 2 = 3 * 16 = 48 square meters,\\Area of Side 3 = 11 * 3 = 33 square meters,\\\\Surface Area = 2 * ( 176 ) + 2 * ( 48 ) + 2 * ( 33 ) = 352 + 96 + 66 = 514 square meters

<em>Hope that helps!</em>

4 0
2 years ago
Read 2 more answers
The points (-6,-2) and (8,5) are the endpoints of the diameter of a circle. Find the length of the radius of the circle
levacccp [35]

I forgot everything bout these things


8 0
3 years ago
A company's board of directors wants to form a committee of 2 of its members. There are 5 members to choose from. How many diffe
Butoxors [25]

Answer:

10 committees

Step-by-step explanation:

Let's say there names are Bob, Doris, Brenda, Alex, and Emma.

Bob and Doris

Bob and Brenda

Bob and Alex

Bob and Emma

Doris and Brenda

Doris and Alex

Doris and Emma

Brenda and Alex

Brenda and Emma

Alex and Emma

these are all different groups starting with only 5 people leading to 10 possible variations of the committee members

Hope that helps! :)

3 0
3 years ago
I NEED HELP ASAP<br> solve for u<br> 12.8=4u
pochemuha

Answer: u= 3.2

Step-by-step explanation:

divide both by 4

4 0
2 years ago
Read 2 more answers
Each angle of an equiangular triangle is what degree angle
Alexandra [31]
An equiangular triangle adds up to 180 so divide that by 3, which is the number of sides, and you get, 60, therefore, each side is 60<span>° angle.</span>
5 0
3 years ago
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