Answer:
<h2>m
F = 34°</h2>
Step-by-step explanation:
If E and F are complementary I means that the sum of their angles add up to 90° since all complementary angles have the sum of their angles equal to 90°
To find mF add mE and m F and equate it to 90 to find x then substitute it into the expression for mF
Thats
mE + mF = 90
9x - 38 + 2x + 40 = 90
11x + 2 = 90
11x = 90 - 2
11x = 88
Divide both sides by 11
x = 8
Now we have
if m F = 9x - 38
m F = 9( 8) - 38
mF = 72 - 38
We have the final answer as
<h3>m
F = 34°</h3>
Hope this helps you
Answer:
Step-by-step explanation:
Don't use 0 as a substitute for θ. 0 is always 0.
cosθ = -5/(2√15)
secθ = 1/cosθ = -2√15/5
Answer:
That's correct.
Step-by-step explanation:
I'm pretty sure...
Answer: I got x= -2y
1- x-2y=1
Cancel 1 on both sides.
−x−2y=0
Add 2y to both sides.
−x=2y
Multiply both sides by -1.
x=−2y
there if that helps :)
Answer:
26 pencils were thrown away.
Step-by-step explanation:
1/5 = 8/40
1/4 = 6/32
add them together 18/40
26 were thrown out
