Simplify the expression. –12 ÷ (–2)
2 answers:
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Answer:
11) Here given Function,
And,
For f(x) = g(x)
When we solve this equation,
We found,
x = 12.5227 ≈ 12.53
Thus, the required solution is, x = 12.53
12) Here the height of rocket A in x second,
And, The height gain by the rocket B in x seconds,
If at x seconds both A and B gain the same height,
That is, f(x) = g(x)
⇒
⇒
⇒
⇒
⇒ x = 1.125 ≈ 1.13
Thus, the required solution is x = 1.13 seconds (approx)
Answer:
B
Step-by-step explanation:
Since the triangle is right use the tangent ratio to find x
tan22° = =
Multiply both sides by x
x × tan22° = 203 ( divide both sides by tan22° )
x = ≈ 502.5 m → B