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Roman55 [17]
2 years ago
6

Given P(8,-12) and T(x-5,y+3), state P" after a reflection over the line y=x of the PointT(P)? PLSSS HELP!

Mathematics
1 answer:
Luba_88 [7]2 years ago
7 0

no rurio greob tryo yeu

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What method would you choose to solve the equation 2x^2-7=9
Margaret [11]
Here is one way to solve for x.

Step 1)  2x^2-7=9

Step 2)  2x^2-7+7=9+7

Step 3)  2x^2=16

Step 4)  (2x^2)/2=16/2

Step 5)  x^2=8

Step 6)  sqrt(x^2)=sqrt(8)

Step 7)  |x|=sqrt(8)

Step 8)  x=sqrt(8) or x=-sqrt(8)

-------------------------------------

Below are explanations/reasons to each of the steps above.

Step 1) Original equation

Step 2) Add 7 to both sides

Step 3) Combine like terms

Step 4) Divide both sides by 2

Step 5) Simplify

Step 6) Apply the square root to both sides. The notation "sqrt" is shorthand for "square root"

Step 7) Use the rule that sqrt(x^2) = |x| for all real numbers x

Step 8) Use the rule that if |x| = k then x = k or x = -k for some fixed number k.

-------------------------------------

The two solutions are
x = sqrt(8) or x = -sqrt(8)

3 0
3 years ago
Which 2 numbers have a mean of 10 and a range of 4?
Charra [1.4K]

Answer:

12 and 8

Step-by-step explanation:

basic knowledge of math i guess

hope that helps love

8 0
2 years ago
Pls anyone help for a big change in my grade
gregori [183]

Answer:

x=3

Step-by-step explanation:

A vertical line will have the equation in terms of x. Any point you choose on line <em>l </em>will have an x-coordinate of 3.

6 0
2 years ago
77 million to 200.2 million
Aleonysh [2.5K]
200.2 million?????????
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3 years ago
(PLEASE ANSWER QUICK) Which data set could be represented by the box plot shown below?
Naily [24]

Answer:

Your answer is B

Step-by-step explanation:

The lowest number is 4, therefore it cannot be C.

Now you'll have to cross out numbers on both sides and your mean will be 9 because you'll have to add 8 and 10 together and 18 divided by 2 is 9.

Next, put a line between 8 and 10, now the 8 side is the lower quartile and the 10 side is the greater quartile.

For the lower quartile, add 7 and 7 together, divide 14 by 2 and the lower quartile is 7.

For the greater quartile, add 11 and 13 together, that's 24, divide 24 by 2 and that's 12.

Lowest: 4

Mean: 9

Lower quartile: 7

Greater quartile: 12

Highest: 14

Therefore your answer is B and not A or C.

8 0
2 years ago
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