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3 years ago

8

A magazine editor wants to know what percent of people ski. She chooses people randomly on a winter weekend and calls them at ho

me to ask whether they ski. What is the bias in this situation?

1 answer:

dem82 [27]3 years ago

7 0

The people she's asking are on a winter weekend so they've most likely been skiing. She should've asked random people for a more fair percentage.

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Zach wants to build a slanted skateboard ramp. He knows he wants the ramp to form a 15 degrees angle with the ground and be 4 fe

Fynjy0 [20]

Answer: The ramp would be 15.5 feet long.

Step-by-step explanation: Please refer to the attached diagram for details.

Angle C shows the angle to be formed by the ramp from the ground, which is 15 degrees. Also, from the ground, it’s going to be four feet tall, which is line AB. The top of the ramp is point A, which makes line AC the entire length of the ramp. Since we have a reference angle (angle C) and two sides, the opposite and the hypotenuse, we shall apply the trigonometric ratio.

SinC = opposite/hypotenuse

Sin 15 = 4/b

By cross multiplication we now have

b = 4/Sin15

b = 4/0.2588

b = 15.4599

Approximately b = 15.5

Therefore the length of the ramp would be 15.5 feet

6 0

3 years ago

Someone help me please !!

Fantom [35]

Answer: A) 60°
The inscribed angle is half the measure of the arc.

3 0

3 years ago

Liz is making 1 dozen ice pops for dessert. She mixes the ingredients together in her kitchen, puts them in the ice-pop mold, an

Troyanec [42]

The answer to your question is 22 degrees Celsius. To figure out the problem, all you do is take the minutes( 58 and 2 and 35 sec.) and convert to seconds(3,480 and 145) Then divide 3,480 by 145 ,which equals 24. Then take 24 and add to the final temperature, which equals 22.
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3 years ago

What is the value of h (−2) when h (x) = 3x + 1?<br><br> h (−2) =

Veseljchak [2.6K]

All you need to do is substitue -2 into the equation for x,

h(-2) = 3(-2) + 1 = -6 + 1 = -5

6 0

3 years ago

Help rq thank you this is a important test I need help

VikaD [51]

Answer:

5

Step-by-step explanation:

$\sqrt{15}$ = 3.87

$\sqrt{68}$ = 8.25

Integers between the two:

4, 5, 6, 7, 8

5 numbers in total

6 0

3 years ago