What are the solutions 2x^2 +7x=4
2 answers:
So your equation is 
. You need to simplify this answer.
So first off, do 2x times 2x.
2 x 2 = 4.
Your equation is now
You're already off to a great start, so now let's add 4x + 7x. It is 11x.
Your equation is almost done! It's
right now.
Divide both sides by 11, and your answer is...
0.36363636 and so on, or you can round to the nearest hundreth, in which it will be
0.36.
I hope I helped!
So first off, do 2x times 2x.
2 x 2 = 4.
Your equation is now
You're already off to a great start, so now let's add 4x + 7x. It is 11x.
Your equation is almost done! It's
Divide both sides by 11, and your answer is...
0.36363636 and so on, or you can round to the nearest hundreth, in which it will be
0.36.
I hope I helped!
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Answer:
(-2,9)
(2,-9)
Step-by-step explanation:
The point Q of quadrilateral QRST has coordinate (-9,2).
When this point is reflected across the y-axis , we negate the x-coordinate to obtain .
This point is again rotated through an angle of 90 degrees(counterclockwise) about the origin.
The rule for 90 degrees counterclockwise rotation is .
Therefore the image of Q(-9,2) after a reflection across the y-axis followed by a 90 degrees counterclockwise rotation about the origin is is Q'(-2,9).
However, the rotation could also be clockwise.
The rule for 90 degrees clockwise rotation is .
The image of Q(-9,2) after a reflection across the y-axis followed by a 90 degrees clockwise rotation about the origin is is Q'(2,-9).
Both answers are there, so you can check them since the question did not specify the direction.