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Softa [21]
3 years ago
15

For an intramural sports program at a particular college, the time to run one mile is recorded for 200 male students in the prog

ram. These times are approximately normal with mean 8 minutes and standard deviation 1 minute.
For the same intramural sports program at the same college, the time to run one mile is recorded for 50 female students in the program. These times are approximately normal with mean 7.5 minutes and standard deviation 2 minutes.

Devon participates in the intramural program for men. His best time to run the mile is 6.6 minutes.

Kendall participates in the intramural program for women. Her best time to run the mile is 5.7 minutes.

Who ran the mile faster relative to their gender?

Devon ran the mile faster relative to his gender

Kerrigan ran the mile faster relative to her gender

Relative to their genders, neither is faster than the other
Mathematics
1 answer:
stiks02 [169]3 years ago
5 0

Answer:

brainiest?

Step-by-step explanation:

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What’s the answer? Because am having a hard time with this math problem.
Studentka2010 [4]

9514 1404 393

Answer:

  34.5 square meters

Step-by-step explanation:

We assume you want to find the area of the shaded region. (The actual question is not visible here.)

The area of the triangle (including the rectangle) is given by the formula ...

  A = 1/2bh

The figure shows the base of the triangle is 11 m, and the height is 1+5+3 = 9 m. So, the triangle area is ...

  A = (1/2)(11 m)(9 m) = 49.5 m^2

The rectangle area is the product of its length and width:

  A = LW

The figure shows the rectangle is 5 m high and 3 m wide, so its area is ...

  A = (5 m)(3 m) = 15 m^2

The shaded area is the difference between the triangle area and the rectangle area:

  shaded area = 49.5 m^2 - 15 m^2 = 34.5 m^2

The shaded region has an area of 34.5 square meters.

7 0
3 years ago
What is the length of line segment BC?​
Nezavi [6.7K]

Answer:

d. 10.53 units

Step-by-step explanation:

This question could be answered by Pythagoras Theorem which is :

a^{2} +b^{2} =c^{2} In every triangle c is always the hypotenuse ( which is the longest line in the triangle/ the line where the right angle sign is pointing to )

a or b could be either one of the other lines of the triangle it doesn't matter.

First you find AC which is simply by adding the two 5.2 values which is 10.4 units.

BC can be written as b in our Pythagoras equation and if you first substitute it you will have:

10.4^{2} + b^{2} = 14.8^{2}

To find b you rearrange everything to the other side except b

b=\sqrt{14.8^{2}-10.4^{2}  }

And if you type that in the calculator you get

BC= 10.53 units (2 decimal place)

Hope it is right, and ask any questions if unsure :)))

5 0
3 years ago
Vector component of ū and w are as
Helen [10]

Answer:

r = ( -14.4 , 6.47 )

Step-by-step explanation:

in the photo you will find all the steps

7 0
2 years ago
8 1/2 x 4/11 please solve
irakobra [83]

Answer:

3 1/11

Step-by-step explanation:

8 1/2 x 4/11

Change to an improper fraction

(2*8+1)/2  * 4/11

17/2 * 4/11

68 /22

Divide the top and bottom by 2

34/11

Change back to a mixed number

11 goes into 34 3 times with 1 left over

3 1/11

7 0
3 years ago
Read 2 more answers
Just part a I’ve done b. <br> Photo provided.
Rasek [7]

Answer:

<h2>x=-5</h2>

Step-by-step explanation:

{2}^{x}  =  \frac{1}{32}

{2}^{x}  =  \frac{1}{ {2}^{5} }

{2}^{x}  =  {2}^{ - 5}

x =  - 5

6 0
3 years ago
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