-3(x-5)-2x=-10
-3x+15-2x=-10
-5x+15=-10
-5x=-25
x=5
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Answer:
A) 18+81=9(x^2+6x+9)
D)11+(x+3)^2
Step-by-step explanation:
To solve this by completing the square, we want to get it to the form of: (x + 3)^2 = 9
There are multiple ways to get there.
First we could divide by 9 to get.
x^2 + 6x = 0
Then, add 9 to both sides to get:
x^2 + 6x + 9 = 9
Factor the left side:
(x + 3)^2 = 9
Now, you can solve this equation by completing the square.
(*I think you have a typo in your answer choices)
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Answer:
Option C. ∠PQT and ∠TQS are supplementary.
Step-by-step explanation:
When the addition of two angles give 180° Then the pair of angles is called as supplementary.
Means we have to search the angles which are on a straight line.
Option A. ∠PQT and ∠PQS sum is more than 90 but less than 180.
Option B. ∠PQT and ∠TQS sum of these angles is 90°
Option C. ∠PQT and ∠TQR sum is 180° so pair is supplementary
Option D. ∠TQS and ∠SQR sum is less than 180°.
Therefore option C is the answer.
Answer:
Read explain
Step-by-step explanation:
The steps taken to solve this system of equations would first be:
1. Sub 4x-2 into your first equation, 2x+5(4x-2)= 12 ->
2. Solve/simplify this equation to get x=1
3. Sub x=1 into your second equation and solve for y = 2
4. Get the solution (1,2)
Answer:
3/14
Step-by-step explanation:
P (B then B) = 4/8 x 3/7 or 1/2 x 3/7