There correct answer to that question is 22.45
Answer:
y ≈ 9.24
Step-by-step explanation:
Using the cosine ratio in the right triangle.
cos30° = 
= 
( multiply both sides by y )
y × cos30° = 8 ( divide both sides by cos30° )
y = 
≈ 9.24 ( to the nearest hundredth )
Answer:
Step-by-step explanation:
Total number on the trip is 24
Let the number of girls be x
Then the boys are x + 8
So... x + x + 8 = 24
2x + 8 = 24.......... This is the equation
2x = 24 - 8
2x = 16
x = 16/2
x = 8
Number of girls = 8
And number of boys = x + 8
Which is = 8+8 = 16
<span>1. Given a(t) = 90 - 10 log (t + 2) = 75 or
10*log (t + 2) = 90-75 = 15 or log(t+2) = 1.5 or
(t+2) = 10^(1.5) or t = -2+[10*√10] = 29.622 or 29.6 weeks. hence the option, "a.29.6 weeks" is correct.
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