Simplify (4.2^n+1 _ 2^n+2 )/(2^n+1 _ 2^n).
1 answer:
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Answer:
14 ft
Step-by-step explanation:
Given:
- Bedroom is 4 ft longer than it is wide.
- Area is 252 ft².
Let x = width of the bedroom:
- width = x ft
- length = (x + 4) ft
Therefore:
To find the value(s) of x, complete the square.
Add the square of half the coefficient of the term in x to both sides:
<u>Factor</u> the perfect trinomial on the left side:
<u>Square root</u> both sides:
Therefore:
As width cannot be negative, the width of the room is 14 ft.
Answer:
∠WVR = 156
Step-by-step explanation:
Angles in triangle add up to 180 - SEE ATTACHMENT - LEFT TRIANGLE
∴ ∠SRT + RST + RTS = 180
∴ ∠SRT + 109 + 47 = 180
∠SRT = 24
Alternate Angle Theorem - SEE ATTACHMENT - RIGHT TRIANGLE
∠SRT = 180 - ∠WVR
24 = 180 - ∠WVR
24 - 180 = - ∠WVR
-156 = - ∠WVR
∠WVR = 156
