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zheka24 [161]
3 years ago
6

20 POINTS PLEASE HELP

Mathematics
1 answer:
Vinvika [58]3 years ago
7 0

Answer:

{-9,1,11}

Step-by-step explanation:

Just place the domain values to your x value in the function.

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Solving a right triangle (ROUND TO THE NEAREST TENTH)
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Answer:

see explanation

Step-by-step explanation:

The sum of the 3 angles in a triangle = 180°

Subtract the sum of the given angles from 180 for B

B = 180° - (90 + 40)° = 180° - 130° = 150°

--------------------------------------------------------------

sin40° = \frac{opposite}{hypotenuse} = \frac{a}{21}

Multiply both sides by 21

21 × sin40° = a, thus

a ≈ 13.5 ( to the nearest tenth )

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cos40° = \frac{adjacent}{hypotenuse} = \frac{b}{21}

Multiply both sides by 21

21 × cos40° = b, thus

b ≈ 16.1 ( to the nearest tenth )

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3 years ago
A survey 3,000 who bought a new car showed that 900 had problems. What is the relative frequency of the people that had problems
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Answer:

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Step-by-step explanation:

Presuming that "survey 3,000" is the total and "900" is the factor who had problems then dividing the total amount by the amount of problems like equal the relative frequency of people that had problems

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Amount of people you had problems / Amount of people who bought the new car.

900 / 3000 = 0.3

Now you need to multiply by 100% (because % in this case is a unit/measurement)

0.3 * 100% = 30%

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