Answer:
The value if x is 0.9875.
Step-by-step explanation:
First, we have to get rid of brackets by expanding :



Next you have to collect like terms :


Lastly, you can solve x :





Ok so for number 5, AB is proportional to BC just like PQ is proportional to QR. AB = 9, BC = 15, PQ = 3, and QR = x. 9/15 = 3/x. Cross Multiply: This gives you - 9x = 45. Divide both sides by 9, and you get x = 5. QR = 5
Essa pergunta nao esta em forma ingles, então pessoas nao vao entender.
Answer:
<h2>1. P = 13.254</h2><h2>2. P = 6.64 + 2x</h2><h2>6. P = 10</h2>
Step-by-step explanation:



Move all terms to the left side and set equal to zero. Then set each factor equal to zero.
x=10,−1