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3 years ago

Help giving brainlest

Mathematics

2 answers:

nikitadnepr [17]3 years ago

5 0

Answer:

15/12 or 5/4

Step-by-step explanation:

change all of fractions into a common denominator

$\frac{10}{12} + \frac{4}{12 } + \frac{1}{12}$

it would equal 15/12

if you need it reduced 5/4

dimulka [17.4K]3 years ago

3 0

Answer:

1 3/12

Hope this helps :)

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Angles f and g AE complementary angles. Angles g and h are supplementary angles. The degree measure of each angle is a whole num

wolverine [178]

The smallest possible measure of angle h is 90 degrees. Since f and g are complementary angles ( add up to 90 degrees), the h has to at minimum be 90 degrees to equal 180 degrees (supplementary angles).

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3 years ago

Fudgin [204]

40% means "40 out of 100"

40 ÷ 100 = 0.40

So, 40% = 0.40 as a decimal

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3 years ago

Rewrite the expression by using symbols 7(x - 20)

Lelechka [254]

7 × x - 7 × 20

You could rewrite it this way, 7 x (x-20), but the answer above is better 'cause it takes away the grouping symbols

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3 years ago

Men consume on average 15 grams of protein a day. Assume a normal distribution with a standard deviation of 3 grams. A sample of

tatyana61 [14]

Using the normal distribution, there is a 0.4826 = 48.26% probability that the sample mean is between 15 and 16 grams per day.

<h3>Normal Probability Distribution</h3>

The z-score of a measure X of a normally distributed variable with mean $\mu$ and standard deviation $\sigma$ is given by:

$Z = \frac{X - \mu}{\sigma}$

The z-score measures how many standard deviations the measure is above or below the mean.

Looking at the z-score table, the p-value associated with this z-score is found, which is the percentile of X.

By the Central Limit Theorem, the sampling distribution of sample means of size n has standard deviation $s = \frac{\sigma}{\sqrt{n}}$ .

For this problem, the parameters are given as follows:

$\mu = 15, \sigma = 3, n = 40, s = \frac{3}{\sqrt{40}} = 0.4743$

The probability is the <u>p-value of Z when X = 16 subtracted by the p-value of Z when X = 15</u>, hence:

X = 16:

$Z = \frac{X - \mu}{\sigma}$

By the Central Limit Theorem

$Z = \frac{X - \mu}{s}$

$Z = \frac{16 - 15}{0.4743}$

Z = 2.11

Z = 2.11 has a p-value of 0.9826.

X = 15:

$Z = \frac{X - \mu}{s}$

$Z = \frac{15 - 15}{0.4743}$

Z = 0

Z = 0 has a p-value of 0.5.

0.9826 - 0.5 = 0.4826 = 48.26% probability that the sample mean is between 15 and 16 grams per day.

More can be learned about the normal distribution at brainly.com/question/15181104

#SPJ1

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2 years ago

The slope of the graph of the equation y=2x-2 s 2 What is y-intercept

DaniilM [7]

Answer:

Y=2x-2

2x is the slope

-2 is the y intercept

Step-by-step explanation:

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3 years ago