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2 years ago

Pls help me. Is the answer 0???

Mathematics

1 answer:

vekshin12 years ago

3 0

Answer:

Well, yes it is supposed to be 0

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(x-5)/(2) + (x-1)/(8) + (x-3)/(4) + (x-4)/(3) PLEAAAASEEEEEEEEEEEE HELPPPPPPPP THIS IS LIKE MY 5th time putting this UP PLEASE!

ad-work [718]

Resp.: 8

181x-389|12

x= 389|181

6 0

1 year ago

An article reported that in a large study carried out in the state of New York, approximately 60% of the study subjects lived wi

DerKrebs [107]

Answer:

95.86%.

Step-by-step explanation:

Problems of normally distributed samples can be 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:

$\mu = 0.6, \sigma = \sqrt{\frac{p(1-p)}{n}} = 0.0245$

$P(0.55 \leq x \leq 0.65$

This probability is the pvalue of Z when $X = 0.65$ subtracted by the pvalue of Z when $X = 0.55$ . So

X = 0.65

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

$Z = \frac{0.65 - 0.6}{0.0245}$

$Z = 2.04$

$Z = 2.04$ has a pvalue of 0.9793

X = 0.55

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

$Z = \frac{0.55 - 0.6}{0.0245}$

$Z = -2.04$

$Z = -2.04$ has a pvalue of 0.0207

So this probability is 0.9793 - 0.0207 = 0.9586 = 95.86%.

5 0

3 years ago

Can anybody help with this ?

9966 [12]

Answer: D. -40x^3+25x^2+45x

6 0

3 years ago

Read 2 more answers

What happens to the function f(x)=x^4 when it becomes f'(x)=x^4+5

il63 [147K]

Answer: It will move up 5 spaces on the y-axis.

Step-by-step explanation: y=mx+b where b is the y-intercept (where it will be on the y-axis). In the 1st one it doesn’t have a b so there is no y-intercept so it will pass through point (0,0). In the 2nd one since your adding 5 it will now pass through point (0,5). Because it shifted up 5 on the y-axis.

3 0

3 years ago

You are paid $82.50 for 71212 hours of work. What is your rate of pay?

yanalaym [24]

If you would like to know what is your rate of pay, you can calculate this using the following steps:

$82.50 ... 7.5 hours
$x = ? ... 1 hour

82.50 * 1 = 7.5 * x
82.50 = 7.5 * x /7.5
x = 82.50 / 7.5
x = $11

The correct result would be $11 per hour.

3 0

3 years ago