Answer:
.5
Step-by-step explanation:
3/4 of a mi is equal to 0.75 mi
2/3 of .75 is .5
Answer: type it in quizlet
Step-by-step explanation:
4 cos² x - 3 = 0
4 cos² x = 3
cos² x = 3/4
cos x = ±(√3)/2
Fixing the squared cosine doesn't discriminate among quadrants. There's one in every quadrant
cos x = ± cos(π/6)
Let's do plus first. In general, cos x = cos a has solutions x = ±a + 2πk integer k
cos x = cos(π/6)
x = ±π/6 + 2πk
Minus next.
cos x = -cos(π/6)
cos x = cos(π - π/6)
cos x = cos(5π/6)
x = ±5π/6 + 2πk
We'll write all our solutions as
x = { -5π/6, -π/6, π/6, 5π/6 } + 2πk integer k
Answer:
It takes around 5s for each plane to travel their respective distances.
Step-by-step explanation:
Hello there! :)
Answer:
1. 
2. 
Step-by-step explanation:
1. 3/5+4/15
First, you multiply by numerator and denominator.
3*3=9
5*3=15

Then, you had to combine by the fractions.

Add by the numbers from left to right.
9+4=13
<u><em>13/15 is the final answer.</em></u>
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2. 5/6-1/4
First, you multiply by 2 both sides of numerator and denominator.
5*2=10
6*2=12
10/12
3/12

Subtract by the numerator.
10-3=7
<em><u>7/12 is the final answer.</u></em>
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Hope this helps!
Thanks!
Have a nice day! :)
:D
-Charlie