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jeyben [28]
3 years ago
6

Please HELP me 50 points worth

Mathematics
1 answer:
Leokris [45]3 years ago
8 0

Answer:

y=-½x + 1

Step-by-step explanation:

1.) a perpendicular lines uses the opposite inverse of a line so the slope becomes -½x

2.) make an equation that looks as so:

y=-½x+b

the y intercept is unknown so it must be a variable.

3.) substitute the points you are given into the equation:

3=-½(4)+b

4.) solve for b

3=2+b

-2|-2

1=b

4.) place b into the equation

y=-½x + 1

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A child is 12 years old, and his father is 32 years older. In how many years will the age of the father be 2 times the age of th
notsponge [240]
Hello :)

In 8 years, the father will be 2 times older than the child.

In 8 years, the father will be 40

In 8 years, the child will be 20

40 ÷ 20 = 2

So again, the answer is 8 years :)

Hope this helps and have a great day
4 0
3 years ago
Read 2 more answers
The correlation between two scores X and Y equals 0.75. If both scores were converted to Z-scores, then the correlation between
Ilia_Sergeevich [38]

Answer:

  (e)  0.75

Step-by-step explanation:

The correlation coefficient is not affected by translation or scaling of scores. Converting them from "raw scores" to z-scores does not affect their correlation.

The correlation coefficient of the z-scores is 0.75.

6 0
2 years ago
If a triangle has side lengths 7, 10, and 12, is it a right triangle??
Vesnalui [34]

Answer:

No. Remember, a right angle must have a 90 degree angle. We can find the lengths with the Pythagorean Theorem.

Step-by-step explanation:

Given the length 7, 10, and 12, we can assume that 12 is the hypotenuse (it is the longest length).

- we can use 7 and 10 interchangeably.

Fill in the equation, a^2 + b^2 = c^2

                 where c = 12, and a or b = 7 or 10.

To indicate if the given lengths would form a right angle, we can only input 7 or 10, not both.

Therefore, 7^2 + b^2 = 12^2 or 10^2 + b^2 = 12^2

7^2 + b^2 = 12^2 ==> 49 + b^2 = 144 ==> <u>b= </u>\sqrt{95<u> ==> </u><u>9.746</u>

b= 9.7, not 10.

10^2 + b^2 = 12^2 ==> 100 + b^2 = 144 ==> <u>b = </u>\sqrt{44<u> ==> </u><u>6.633 </u>

b= 6.6, not 7.

Therefore, the lengths 7, 10, and 12, does NOT make a right triangle.

Hope this helps!

5 0
3 years ago
What does 4(-8x+5)-(-33x-26)=
maxonik [38]

Answer:

4(-8x+5)-(-33x-26)= x +46

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
In year 7 of a large comprehensive school is it possible to divide the pupils into equal sized classes of either 24 or 30 or 32
Advocard [28]

Answer:

Last part 24x

Step-by-step explanation:

I understand some of this, like the last question. if each class had 24 pupil, and were trying to find out how many are in each class, it would be 24x (x stands for the amount of classes)

You have not given a true amount of pupils so I can not give a 100% correct answer for the first part.

4 0
4 years ago
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