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3 years ago

What is the slope of the line that contains the points (-2, 1) and (0, -3)?

Mathematics

1 answer:

AysviL [449]3 years ago

7 0

Answer:

-2

Step-by-step explanation:

To find the slope we use the formula

m = (y2-y1)/(x2-x1)

= (-3-1)/(0- -2)

= -4 / (+2)

= -2

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(Scientific Notation LC)

trapecia [35]

0.00067

You always want the period to the right of the first number meaning you’ll start from there counting backwards because it is negative.

8 0

1 year ago

Find the measurement of the segment. QT = 28.5 in., QV = 64.7 in.

statuscvo [17]

The question requires getting the length of TV

Answer:
TV = 36.2 in

Explanation:
We are given that point T lies on line QV. The scenario is shown in the attached image.
This means that:
QV = QT + TV

We have:
QT = 28.5 in
QV = 64.7 in

Substitute with the values to get the length of TV as follows:
QV = QT + TV
64.7 = 28.5 + TV
TV = 64.7 - 28.5
TV = 36.2 in

Hope this helps :)

7 0

3 years ago

Jackson goes to the gym 0, 2, or 3 days per week, depending on work demands. The expected value of the number of days per week t

valina [46]

For a probability distribution the expected value is the summation of product of probabilities with their respective data values. Let x be the probability that Jackson goes gym for 2 days and y be the probability that he goes gym for 3 days.

For the given case we have following values and their probabilities:

0 : 0.1

2 : x

3 : y

So the expected value will be = 0(0.1) + 2(x) + 3(y)

Expected value is given to be 2.05. So we can write the equation as:

2x + 3y = 2.05 (Equation 1)

Also for a probability distribution, the sum of probabilities must always equal to 1. So we can set up the second equation as:

0.1 + x + y = 1

x + y = 0.9 (Equation 2)

From Equation 2 we can write the value of x to be x = 0.9 - y. Using this value in equation 1, we get:

2(0.9 - y) + 3y = 2.05

1.8 - 2y + 3y = 2.05

1.8 + y = 2.05

y = 0.25

Using the value of y in equation 2 we get value of x to be 0.65

Therefore we can conclude that:

The probability that Jackson goes to gym for 2 days is 0.65 and the probability that he goes to gym for 3 days is 0.25

6 0

4 years ago

Read 2 more answers

Find the area of the small rectangle. 2x + 3 x + 6 x - 5

Sloan [31]

Answer:

11x-5

Step-by-step explanation:

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3 years ago

Administered during the last week of the Fall Semester (December 14th-18th).

Natasha2012 [34]

When a negative number is subtracted from another number, the number will be added to the original. This means the equation will become -11 + 11 therefore the answer is 0

8 0

3 years ago