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Ivanshal [37]
3 years ago
15

I’m not sure how to do this

Mathematics
1 answer:
bekas [8.4K]3 years ago
5 0

Answer:

Step-by-step explanation:

We will write the equation in slope-intercept form since that's the easiest one to write from looking at a graph. The slope-intercept form of a line is

y = mx + b, where m is the slope and b is the y-intercept.

The "intercept" part of the equation comes from the y-intercept of the line. The y-intercept exists where x is 0...or in other words, where the line goes through the y-axis. Our line goes through the y-axis at a value of -1. So far we have y = mx - 1. Now we just need the slope.

By looking at the line, we can determine the slope by using a slope triangle. This slope is negative, first off, since it goes "downhill". From the y-intercept of -1, we have to move down 1 unit and then to the right 1 unit in order to get to the next place on the graph where the line goes through where the grids of our graph cross. Down 1 unit is -1, and over to the right is +1, so rise/run is -1/+1 which is -1. That means our slope is -1. Therefore, the equation in slope-intercept form is

y = -1x - 1 or just y = -x - 1.

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The probability that a randomly selected elementary or secondary school teacher from a city is a female is , holds a second job
julsineya [31]

Answer:

The probability that an elementary or secondary school teacher selected at random from this city is a female or holds a second job is 0.90.

Step-by-step explanation:

Denote the events as follows:

<em>X</em> = an elementary or secondary school teacher from a city is a female

<em>Y</em> = an elementary or secondary school teacher holds a second job

The information provided is:

P (X) = 0.66

P (Y) = 0.46

P (X ∩ Y) = 0.22

The addition rule of probability is:

P(A\cup B)=P(A)+P(B)-P(A\cap B)

Use this formula to compute the probability that an elementary or secondary school teacher selected at random from this city is a female or holds a second job as follows:

P(X\cup Y)=P(X)+P(Y)-P(X\cap Y)\\=0.46+0.66-0.22\\=0.90

Thus, the probability that an elementary or secondary school teacher selected at random from this city is a female or holds a second job is 0.90.

4 0
3 years ago
What us 115,016 rounded to the nearest thousand
grigory [225]
It would be 115,000. You round down since 16 is closer to 115,000 than 116,000.
6 0
3 years ago
Read 2 more answers
16)<br> 1420<br> 2x<br> A) 67<br> C) 68<br> B) 71<br> D) 73<br><br> What is the value of x???
larisa [96]

Answer:

x = 710

Step-by-step explanation:

1. Divide both sides by 2 to get x by itself

1420 = 2x

↓

1420 ÷ 2 = 2x ÷ 2

↓

710 = x

2. Switch sides

710 = x

↓

x = 710

I know it is not one of your options but that is the answer to 1420 = 2x

3 0
3 years ago
The 1997 value of an object was $9500. In 2012, it was worth $5000. The annual percent of decay has been constant. What is the a
Taya2010 [7]
I don't know if this is right but I think it is $4500
3 0
3 years ago
0.84 is 10 times as much as....<br><br> Could you please explain why?
Olegator [25]
0.084 is the answer because 0.84 divided by 10 is 0.084
6 0
3 years ago
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