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morpeh [17]
2 years ago
6

David is a professional ice skater who has skated in 10 competitions. ​His scores in the competitions are as follows: 204, 310,

279, 314, 257, 302, 232, 261, 208, 217.
The mean score is:
A: 268
B: 268.4
C: 267
D: 267.4
Mathematics
1 answer:
anastassius [24]2 years ago
4 0

Answer: 267.7

I just did the math and I got this answer

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The diameter of a circle is ___________the length of its radius?
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Answer:

Twice the length of the radius

Step-by-step explanation:

A radius by definition is half of the diameter which means the diameter is twice the radius.

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in circle F, points A,B,C,D, and E are located on the circle such that measure of C=119°, and BE is perpendicular AD. determine
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Answer:

Measure of arc AE = 58°

Step-by-step explanation:

As shown: ABCD is a quadrilateral, ∠C = 119°

So, ∠C + ∠A = 180°

∴ ∠A = 180° - ∠C = 180° - 119° = 61°

ΔAGB is a right triangle at G

So, ∠A + ∠B = 90°

∴ ∠ABG = 90 - ∠A = 90 - 61 = 29°

Arc AE opposite to the angle ∠ABG

So, measure of arc AE = 2∠ABG = 2 * 29° = 58°

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3 years ago
Solve the following system of equations by elimination. What is the value of y?
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3 years ago
Marjorie and Blaine make chairs together. Marjorie builds the seat and Blaine independently sews the cushions to rest on top of
Andrew [12]

Making 10 chairs would take Marjorie and Blaine<u> </u><u>21 hours and 40 minutes</u>.

<h3>How long does it take to make 10 chairs?</h3>

The total time it takes Marjorie and Blaine to perform their respective tasks in building a chair is multiplied by 10 chairs, respectively.  This time is known as their speed.

The resulting figures are summed to get the total time.

<h3>Data and Calculations:</h3>

The total time it takes Marjorie to build a chair is 15 hours (1.5 hours x 10)

The total time it takes Baline to sew cushions per chair is 400 minutes (40 x 10) or 6 hours and 40 minutes.

Therefore, the total time to build 10 chairs is 21 hours, 40 minutes (15 hours + 6 hours and 40 minutes).

Thus, making 10 chairs would take Marjorie and Blaine <u>21 hours and 40 minutes</u>.

Learn more about the time consumed at brainly.com/question/17146782

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