MATHEMATICS MIDDLE SCHOOL

If the solution to the equation is x = -2, find the value of a
4x-2(x-a)= 14

Answers

Answer 1

Answer:

x=-2

4x-2(x-a)=14

4*(-2) -2(-2-a)=14

-8+4+2a=14

-4+2a=14

2a=18

a=9

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2-x=3x-10 what does x equal

Answers

the answer would be x equals -6

Which of the following equations results in no solutions?A 3(u + 5) = 2u + 15
B 3(u + 5) = 2u + 15 + u
C 3(u + 5) = 2u - 4 + u
D 3(u + 5) = 2u - 4
need help please

Answers

It will be B because Problem A,C,D is wrong not Problem B

Which answer best describes the solution to the equation 3m – 9 = 9 + 3m?

A.
one solution

B.
no solution

C.
an infinite number of solutions

D.
m = 27

Answers

let's check
3m - 9 = 9+3m
collect like terms
3m -3m = 9 + 9
0m = 18
which is not possible, so it will not have any solutions

3m - 9 = 9 + 3m
-3m    -3m
0m - 9 = 9
       +9 +9
   0m = 18
   0     0
   m = 0
B. no solution

Write a function for a rotation 90 degrees counter clockwise about the origin, point 0

Answers

Answer:

90° counter clockwise rotation of point 0(x, y) about origin = (-y, x)

Step-by-step explanation:

Following are the rules for a counter clockwise rotation of 90 degrees about the origin for a point O(x,y):

1. Invert the sign of the value of y.

2. Switch x and y with each other.

For example, a point A(5,2) after rotation gives a point B(-2,5) using the rules given above. The points on the x-y plane are shown in the image attached.

You exercise for one hour each day and you burn 8.5 calories per minute. If you graphed the number of calories you burned as the output, compared to the number of minutes you exercise as input, what would the graph look like? Which of the following would not be true?A.The graph would be a line.
B.The graph would rise from left to right.
C.The graph would be only in the first quadrant.
D.The larger the number of minutes, the fewer calories you would burn.

Answers

In a graph, the general rule is that the output is the y axis and the input is the x axis. Therefore, we can say that the number of calories burned will be along the y axis and the minutes will be along the x axis.

(A) The graph would be a line.
This would be true, because you are burning calories at a steady rate. This means that the graph will also be increasing steadily, rather than dropping randomly.

(B) The graph would rise from left to right.
This would be true, because your graph will be increasing positively. If it rose right to left, that would mean the more time passed, the less calories burned.

(C) The graph would be only in the first quadrant.
This would be true, because your graph, as said before, will be increasing positively. At the rate you're going at, it isn't possible to burn negative calories or spend a negative amount of time exercising.

(D) The larger the number of minutes, the fewer calories you would burn.
This would be false, because you burn 8.5 calories per minute. This indicates that the more time passed, the more calories you will burn. In order for it to be true, 8.5 would have to be negative.

The picture attached is an idea of what the graph would look like.

Two students were asked if they liked to read. Is this a good example of a statistical question? Why or why not? A Yes, this is a good statistical question because a variety of answers are given. B Yes, this is a good statistical question because there are not a variety of answers that could be given. C No, this is not a good statistical question because there are not a variety of answers that could be given. No, this is not a good statistical question because there are a variety of answers that could be given

Answers

The answer to the statistical question is C: No, this is not a good statistical question because there are not a variety of answers that could be given.

What is a statistical question?

A statistical question is a kind of question which have more than one possible answer.

The answer to the statistical question is the collection of various points of data.

The answer to the statistical question depends on a variety and situations.

The answer to the statistical question is C: No, this is not a good statistical question because there are not a variety of answers that could be given.

Learn more about the statistical question;

brainly.com/question/11253919

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