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Sav [38]
3 years ago
11

Help on this problem

Mathematics
1 answer:
GREYUIT [131]3 years ago
6 0
0.77(13.50×40)= 415.8
The answer is $415.8

Hope this helps :)
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A line, y mx + b, passes through the point (2, 3) and is parallel to y 2x + 5. What is the value of b?​
Vitek1552 [10]

Answer:

Step-by-step explanation:

If a line is parallel to another it must have the same slope

The slope/intercept form of a line is y = mx + b where m is the slope and b the y intercept

The line y = 2x + 5 has slope 2

So the slope of the line that passes through (2,3) must also have the slope 2

We have
y = 2x + b; Substituting x =2, y =3 in this equation gives us
3 = 2 (2) + b or b = -1

Hence the equation of the line is
y = 2x -1

Cross-check

Substitute for x = 2 ==> y = 2(2) - 1 = 3 which is consistent

3 0
2 years ago
HELP PLZ PLEASE PLS MATH EASY LOL A PASSING SCHOOL BRAINLIEST
Karolina [17]

Answer:

1. -5<1

2. -4<0

3.-6<+4

4.2>0

5. -8>-12

6. -34<-16

7.0>-9

8. +11=+11

Step-by-step explanation:

hope this helps

3 0
3 years ago
57% of 84 (Explained)
Anna [14]

Answer:

47.88

Step-by-step explanation:

57% converts to 0.57. so multiply 0.57 x 84

4 0
3 years ago
Read 2 more answers
The tread life of a particular brand of tire is a random variable best described by a normal distribution with a mean of 60,000
Elis [28]

Answer:

84.13% probability a particular tire of this brand will last longer than 57,100 miles

Step-by-step explanation:

When the distribution is normal, we use 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 question, we have that:

\mu = 60000, \sigma = 2900

What is the probability a particular tire of this brand will last longer than 57,100 miles

This is 1 subtracted by the pvalue of Z when X = 57100. So

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

Z = \frac{57100 - 60000}{2900}

Z = -1

Z = -1 has a pvalue of 0.1587

1 - 0.1587 = 0.8413

84.13% probability a particular tire of this brand will last longer than 57,100 miles

7 0
3 years ago
In a group of workers, 16 belonged to a lottery syndicate and 4 did not.
Tatiana [17]

Answer:

<h2>HI THERE</h2>

the answer is number 1 !!

• correct me if I'm wrong

8 0
3 years ago
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