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statuscvo [17]
2 years ago
7

Consider the lines y=8x+1, y=-8x+1 and y=2x+1. How are these lines the same, if at all? How do their slopes compare? Is there a

line with “more slope” than the others?
Mathematics
1 answer:
vivado [14]2 years ago
8 0

Answer: the answer is blue

Step-by-step explanation:

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#3
Alina [70]
There should be 30 cars, but I’m not sure
6 0
3 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
3 years ago
The difference of two numbers is 8. When twice the first number is added to three times the second number, the result is 51. Wha
iogann1982 [59]
A-b=8
2a+3b=51

2a-2b=16
2a+3b=51


Subtract both
-5b=-35

b is 7 and a is 15
8 0
3 years ago
Read 2 more answers
The total​ cost, after using a 55cents​-off ​coupon, is ​$3.30. If c represents the cost of the fruit in dollars per​ pound, wha
Rudik [331]
T= total cost= $3.30
c= cost of fruit per pound
x= # of pounds of fruit purchased

EQUATION
T= (c)(x) - $0.55 coupon

to find c, substitute $3.30 total for T
$3.30= cx - $0.55
add $0.55 to both sides
$3.85= cx
divide both sides by x
$3.85/x= c

Hope this helps! :)
5 0
3 years ago
Can you please help me​
dezoksy [38]
This is how you do it. Let me know if you have questions!!! :)

4 0
3 years ago
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