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ratelena [41]
3 years ago
7

Write an equation in slope-intercept for the line that has a slope of O and goes through (2,-4).

Mathematics
1 answer:
dangina [55]3 years ago
8 0

Answer:

Step-by-step explanation:

y + 4 = 0(x - 2)

y + 4 = 0

y = -4

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busy bees charter school is going to celebrate the end of the school year at an amusement park. Student tickets at the amusement
igor_vitrenko [27]

Answer:

Step-by-step explanation:

6 0
3 years ago
What is the answer to this, I don't get it?
Degger [83]
4x + 8 = 2x + 6
-2x ----- -2x

2x + 8 = 6
----- -8 ---8

2x = -2
÷-2 ÷-2

x = -1

Hope this helps!
3 0
3 years ago
How many solutions does the system have?<br> 3x + y = 8<br> 2 + 2y = 8
REY [17]

Answer:

x=2,y=2

Step-by-step explanation:

This question is a simultaneous equation

So let's solve

3x+y=8...(1)

2x+2y=8....(2)

Multiply (1) by 2

6x+2y=16...(3)

Substrate (2) From (3)

4x=8

Let's make x the subject of formula by dividing both sides by 4

x=2

So let's substitute the value of x into (1)

3x+y=8

3(2)+y=8

6+y=8

y=8-6

y=2

Therefore x is 2,y is 2

3 0
3 years ago
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7 0
3 years ago
In its Fuel Economy Guide for 2016 model vehicles, the Environmental Protection Agency gives data on 1170 vehicles. There are a
Murrr4er [49]

Answer:

The first quartile of the distribution of gas mileage is 19.6925 mpg.

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 = 23, \sigma = 4.9

What is the first quartile of the distribution of gas mileage?

The first quartile has a proportion of 0.25. So this is the value of X when Z has a pvalue of 0.25. It happens between Z = -0.67 and Z = -0.68, so i am going to use Z = -0.675

So

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

-0.675 = \frac{X - 23}{4.9}

X - 23 = -0.675*4.9

X = 19.6925

The first quartile of the distribution of gas mileage is 19.6925 mpg.

8 0
4 years ago
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