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3 years ago

HELP PLS!!!!

Mathematics

1 answer:

Mnenie [13.5K]3 years ago

7 0

Answer:

A. 4:3:5

Step-by-step explanation:

Al ate 1/3, which is 4/12. Barb ate 1/4, which is 3/12. That leaves 5/12 for Calvin to eat.

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Charlie does the following problem:

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The answer is B. He is incorrect because he should have only 5 factors of 3.

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here are 5 classes in your grade level. Each class is 6/7 full today. If a full class has 28 students, how many students in your

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Step-by-step explanation:

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4 years ago

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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

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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)

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

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

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

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3 years ago

7) What is the slope-intercept form of this equation? Show all your work. 6x + 2y = 12

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Answer:

Step-by-step explanation:

6x+2y=12

2y=6x-12

y=6x/2- 12/2

y=3x-6

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The answer is 25

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3 years ago