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3 years ago

A dealer can fix 30 dirt bikes in 5 hours. What is the unit rate per hour? How many dirt bike can they

Mathematics

1 answer:

MAXImum [283]3 years ago

7 0

6 bikes per hour
They can fix 60 bikes in 10 hours

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An organization has members who possess IQs in the top 4% of the population. If IQs are normally distributed, with a mean of 100

murzikaleks [220]

Answer:

The minimum IQ score will be "126".

Step-by-step explanation:

The given values are:

Mean

$\mu = 100$

Standard deviation

$\sigma=15$

Now,

⇒ $P(z>x)=4 \ percent \ i.e., 0.04$

⇒ $P(z>\frac{x- \mu}{\sigma} )=0.04$

⇒ $1-P(z \leq \frac{x-100}{15})=0.04$

⇒ $\frac{x-100}{15}=z0.96$

$=NORMDIS(z=0.96)$

$=1.751$

⇒ $x=100+15\times 1.751$

$=126.265 \ i.e., 126$

7 0

3 years ago

3.which lines are parallel 4. what wouldbyou use to prove these lines parallel

uysha [10]

3)the line G & H are parallel
4) Parallel line theorem is what I do believe it's called (do you have choices for this one?)

6 0

3 years ago

Curtis plays a trivia game he earns 2 points for each correct answer and loses 0.25 points for each incorrect answer he get 21 c

Maslowich

Answer:

Step-by-step explanation:

Curtis is playing a trivia game.

Number of points earned for each correct answer = 2

Number of points lost for each correct answer = 0.25

Given that:

Number of correct answers given by Curtis = 21

Number of wrong answers given by Curtis = 4

To find:

Total score of the game by Curtis?

Solution:

First of all, let us find the points earned by correct answers.

Points earned by correct answers = Number of correct answers multiplied by Points earned on one correct answer.

Points earned by correct answers = 21 $\times$ 2 = 42

Now, let us find the points to be lost by wrong answers.

Points lost by wrong answers = Number of wrong answers multiplied by Points lost on one correct answer.

Points lost by wrong answers = 4 $\times$ 0.25 = 1

The score of the game can be calculated by subtracting the points lost from the points earned.

Score = 42 - 1 = 41

3 0

2 years ago

Which function has zero at x=10 and x=2

Marizza181 [45]

Answer:

Step-by-step explanation: A function y=(x-10)(x-2) will have its zeros at x=10 and x=2. y=x²-12x+20.

Step-by-step explanation:

3 0

3 years ago

Rotation 90 degrees counterclockwise about the origin

nataly862011 [7]

Answer:

Point W = (-3, 3)
Point X = (-3, 2)
Point V = (-2, 3)

The rotation rule states that rotation 90° counterclockwise means (x, y) = (-y, x)

The new points would be equal to:

Point W' = (-3, -3)
Point X' = (-2, -3)
Point V' = (-3, -2)

Try graphing it to see if the new points make sense(because I'm not too sure :\)

3 0

3 years ago