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muminat
3 years ago
8

Enter number as an integer or decimal.

Mathematics
1 answer:
Strike441 [17]3 years ago
3 0

Answer:

x

Step-by-step explanation:

30-4x>6x-10

Adding 10 to both sides.

10+30-4x>6x-10+10

40-4x>6x

Adding 4x to both sides.

4x+40-4x>6x+4x

40>10x

Dividing both sides by 10.

\frac{40}{10}>\frac{10x}{10}

4>x

∴ x

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In a randomly selected sample of 1169 men ages 35–44, the mean total cholesterol level was 210 milligrams per deciliter with a s
Aneli [31]

Answer:

The highest total cholesterol level a man in this 35–44 age group can have and be in the lowest 10% is 160.59 milligrams per deciliter.

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

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

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

\mu = 210, \sigma = 38.6

Find the highest total cholesterol level a man in this 35–44 age group can have and be in the lowest 10%.

This is the 10th percentile, which is X when Z has a pvalue of 0.1. So X when Z = -1.28.

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

-1.28 = \frac{X - 210}{38.6}

X - 210 = -1.28*38.6

X = 160.59

The highest total cholesterol level a man in this 35–44 age group can have and be in the lowest 10% is 160.59 milligrams per deciliter.

5 0
3 years ago
What is the disturbited property of (-2.5)(3-8y)
Mars2501 [29]

<u><em>Answer: =-7.5+20y</em></u>

Step-by-step explanation:

distributive property: a(b+c)=ab+ac

a=-2.5, b=3, c=8y

-2.5*3-(-2.5)*8y

3(-2.5)-8(-2.5)y

simplify by equation.

3(-2.5)-8(-2.5)y=-7.5+20y

=-7.5+20y

Hope this helps!

Thanks!

Have a great day!

3 0
3 years ago
You need to buy some pencils and an eraser. You can spend no more than $5. The eraser cost $1 and the pencil cost $0.25 each. Wr
vekshin1
5≤1e+ .25p 
E represents erasers and p pencils

6 0
3 years ago
DO IT QUICK PLSSSS
Butoxors [25]
Answer: 1.5

Step by step explain:
4 0
2 years ago
Read 2 more answers
SOMEONE PLEASE HELP ITS DUE TONIGHT<br><br> EXPLANATION = BRAINLIEST
Vaselesa [24]

Given:

Radius of the circle = 4 meters

Measure of arc = 135 degrees

To find:

The area of the sector bounded by the given arc.

Solution:

Formula for area of a sector is:

A=\pi r^2\times \dfrac{\theta}{360^\circ}

Where, r is the radius and \theta is the central angle or measure of intercepted arc.

Putting r=4,\ \theta =135^\circ in the above formula, we get

A=\pi \times (4)^2\times \dfrac{135^\circ}{360^\circ}

A=\pi \times 16\times \dfrac{3}{8}

A=\pi \times 2\times 3

A=6\pi

Therefore, the exact area of the given sector is 6\pi square meters.

3 0
3 years ago
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