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OleMash [197]
2 years ago
5

What is the slope? Please help

Mathematics
2 answers:
ss7ja [257]2 years ago
8 0

Answer:

-1/2

Step-by-step explanation:

slope = rise/run = (difference in y)/(difference in x)

Look for two points that are easy to read since they fall on grid lines intersections.

For example, pick point (0, 3) as the first point.

Pick point (2, 2) as the second point.

We start at the first point (0, 3) and need to go to point 2 by using only vertical and horizontal moves.

Start at (2, 2). Go down 1 unit. That is a rise or a change in y of -1.

Now go right 2 units. That is a run or a change in x of 2.

slope = rise/run

slope = -1/2

Answer: -1/2

tresset_1 [31]2 years ago
7 0

Answer:

Slope is -1/2

step by step explanation

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The main goal of gambling companies is to
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make you interested in the game, so you spend more money

Step-by-step explanation:

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5 0
2 years ago
Scores of an IQ test have a bell-shaped distribution with a mean of 100 and a standard deviation of 12. Use the empirical rule t
MissTica

Answer:

A) 99.7% of people have an IQ between 64 and 136.

B) 5% of people have an IQ score less than 76 or greater than 124.

C) 16% of people have an IQ score greater than 112.

Step-by-step explanation:

The Empirical Rule tells us that, in a normal or 'bell-shaped' distribution, 68% of the data is one standard deviation from the mean, 95% of the data is two standard deviations from the mean, and 99.7% of the data is three standard deviations from the mean.

A) 64 and 136 are 3 standard deviations away from the mean, so 99.7% of people have an IQ between 64 and 136.

B) 76 and 124 are 2 standard devations away from the mean, but the answer is asking what percentage is not between them. 100% - 95% gives us 5%.

C) 112 is one standard deviation away from the mean. If we want to find the percentage greater, then we can do 100% - 50% (as 112 is to the left of the mean), then we can take half of 68 to get 34%, and after subtracting 50% and 34% from the 100%, we get 16%.

8 0
3 years ago
The ratio of boys to girls in a group is 7:1. If there are 66 more boys than girls, work out how many girls there are
nevsk [136]

Answer:11

Step-by-step explanation:

Boys : girls=7:1

Sum of ratio=7+1=8

Let them number of girls be y

Then they number of boys=y+66

Total number of pupils=y+y+66

Total number of pupils=2y+66

Number of girls=(girls ratio)/(sum of ratio) x (total number of pupils)

y=1/8 x (2y+66)

Cross multiply

y x 8=2y + 66

8y=2y + 66

Collect like terms

8y-2y=66

6y=66

Divide both sides by 6

6y/6=66/6

y=11

The number of girls is 11

4 0
3 years ago
Please help me with this statistics question!!
Dmitry_Shevchenko [17]

a statistic question is with multiple answers

4 0
3 years ago
A train leaves a point A at 5 pm and reach another point B at 11 pm. Another train leaves point B at 7 pm and reach point A at 1
Alexus [3.1K]
Answer: I think the two trains meet at 9pm

Explanation: A=train a B=train b

If A is traveling for 6 hours and B is traveling for 3 hours, then you minus 3 hours from A, so you are left with 3 hours. Convert that into time, and you are left with 9pm!

Hope this helps! :)
3 0
2 years ago
Read 2 more answers
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