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2 years ago

Writing an equation of a proportional relationship in the form y=kx k represents the

1 answer:

8 0

A proportional relationship is a relationship between two quantities in which the ratio of one quantity to the other quantity is constant. A proportional relationship can be described by an equation of the form y = kx, where k is a number called the constant of proportionality.

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The following are questions from a self-quiz.According to some study, the height for Northern European adult males is normally d

lara [203]

Answer:

a) 0.064

b) 0.109

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 181 centimeter

Standard Deviation, σ = 7.3 centimeter

We are given that the distribution of height for Northern European adult males is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

a) P(person is between 160 and 170 centimeters)

$P(160 \leq x \leq 170) = P(\displaystyle\frac{160 - 181}{7.3} \leq z \leq \displaystyle\frac{170-181}{7.3}) = P(-2.8767 \leq z \leq -1.506)\\\\= P(z \leq -1.506) - P(z < -2.8767)\\= 0.066 -0.002 = 0.064 = 6.4\%$

b) P(person is higher than 190 centimeter)

P(x > 190)

$P( x > 190) = P( z > \displaystyle\frac{190 - 181}{7.3}) = P(z > 1.2328)$

$= 1 - P(z \leq 1.2328)$

Calculation the value from standard normal z table, we have,

$P(x > 190) = 1 - 0.891 = 0.109 = 10.9\%$

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2 years ago

A cube number is rolled 20 times and lands on 1 two times and on 5 four times. Find each experimental probability. Then compare

kykrilka [37]

The experiment probabilities are listed below:

One: 2 out of 20 = 2 / 20 = 0.1 or 10%

Four: 5 out of 20 = 5 / 20 = 1 / 4 = 0.25 = 25%

The theoretical probability of any single number is 1 out of 6 or about 17%.

The experimental probability for ones was less than and for fours it was greater than the theoretical probability.

4 0

3 years ago

WILL MAKE U BRAINLIEST!<br><br> Which equation can be used to solve for m∠1?

zlopas [31]

The answer is B.

This is because <span>any angle formed by two chords is equal to half the sum of intercepted arcs.</span>

4 0

3 years ago

Read 2 more answers

What does x equal ???

Orlov [11]

Answer:

x = 107

Step-by-step explanation:

x and 107 are alternate interior angles and alternate interior angles are equal

so x= 107

4 0

2 years ago

Read 2 more answers

According to the food label on a box cookies, each box has 16 servings and each serving contains 4 cookies. The weight of the bo

Inessa [10]

Answer:

1/128 kilograms.

Step-by-step explanation:

First, multiply 16 and 4 to get 64. Since the weight of the box is 1/2 (or 0.5), so we have each cookie's weight at 1/128. Please mark this "brainliest" (the crown) if you like this answer!

also i am 100% sure its the answer i got this answer right in my test!

8 0

2 years ago