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2 years ago

Please help me, i dont have graph paper, and im not sure about number 1

Mathematics

2 answers:

qwelly [4]2 years ago

3 0

Answer:

from the values you get

*make a dotted line to intersect the line (do this for both the highest value and lowest value)

* subtract the lowest value from the lowest value

that will be the slop for yaxis

yanalaym [24]2 years ago

3 0

Answer:

The person is right brainly user all answers will be correct if wrong

Step-by-step explanation:

So please use this answer if you wan't or do not

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2 years ago

This year, Carmen watched 70 movies. She thought that 21 of them were very good. Of the movies she watched, what percentage did

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Carmen thought 30% of the movies were good.

I found the percent by dividing 21 by 70

21/70= .3

.3= 30%

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3 years ago

Mary is trying to save money for a car. The equation y= 250x+1000 represents how much she saves, where y is the amount in her sa

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Step-by-step explanation:

i just plugged in random numbers into the calculator-_-

5 0

2 years ago

5. X is a normally distributed random variable with a mean of 8 and a standard deviation of 4. This can be written as N(8,4). Th

xz_007 [3.2K]

Answer:

The probability that X is between 1.48 and 15.56 is $P(1.48 \leq X \leq 15.56) = 0.919$

Step-by-step explanation:

Normal Probability Distribution:

Problems of normal distributions 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.

X is a normally distributed random variable with a mean of 8 and a standard deviation of 4.

This means that $\mu = 8, \sigma = 4$

The probability that X is between 1.48 and 15.56

This is the pvalue of Z when X = 15.56 subtracted by the pvalue of Z when X = 1.48. So

X = 15.56

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

$Z = \frac{15.56 - 8}{4}$

$Z = 1.89$

$Z = 1.89$ has a pvalue of 0.9706

X = 1.48

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

$Z = \frac{1.48 - 8}{4}$

$Z = -1.63$

$Z = -1.63$ has a pvalue of 0.0516

0.9706 - 0.0516 = 0.919

Write out the probability notation for this question.

$P(1.48 \leq X \leq 15.56) = 0.919$

The probability that X is between 1.48 and 15.56 is $P(1.48 \leq X \leq 15.56) = 0.919$

5 0

2 years ago

Please help me I'm desperate!

lianna [129]

Ok, this definition of f is just a bunch of points (4 to be exact).

so if point (a,b) is part of f, then f(a)=b

f(1) is about point (1,0), so f(1)=0.
g(1) = 1 (due to point (1,1))
g(2/3) = 0
f(2) = 3/4
g(-2) = 3
f(π) = -2

just a lookup once you see what is happening

3 0

2 years ago