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liq [111]
3 years ago
13

5. What is the Standard deviation for the following set of data? 6,4,9, 5, 5, 4,5

Mathematics
1 answer:
Anna007 [38]3 years ago
3 0

Answer:

The answer is 5.4 because you'll add them up and divide by 7

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Find the circumference of a circle with radius, r = 6.8m. Give your answer rounded to 1 DP.
Assoli18 [71]

Answer:

42.7 m

Step-by-step explanation:

The Circumference of a circle is found by multiplying the radius of the circle by 2π.  Here the radius is 6.8 m.  The circumference of this circle is

C = 2π(6.8 m) = 13.6π m, or (to 1 decimal place, 42.7 m.

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3 years ago
In ΔRST, s = 58 inches, ∠R=115° and ∠S=19°. Find the length of r, to the nearest 10th of an inch.
Lorico [155]

Answer:

365.9 Inches

Step-by-step explanation:

To find the value of Sin A can be found using the sine rule. the rule states that the ratio of the length facing an angle in a triangle to the sine of the angle is constant. As such,

a/Sin A = b/Sin B = c/Sin C

Where is a is the side facing angle A, b is the side facing angle B and c is the side facing angle C.

Hence,

58/Sin 19 = r/Sin 115

r = 58 Sin 115/ Sin 19

= 365.9 Inches

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3 years ago
Which is a possible way to rewrite the equation y=3x+3b to solve for b
alex41 [277]
3b=y+3x 


To solve for B you need to put B before the equals sign 
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