Answer:
x= 2-1/2
Step-by-step explanation:
14x + 7y = 28
SUBTRACT 7Y FROM BOTH SIDES (TO ISOLATE X)
14x=28-7y
DIVIDE BY 14 TO ISOLATE X
x= 2-1/2
HOPE THIS HELPS ......PLZ MARK BRAINIEST
Answer:
2x3+-8-6= -8
I can't explain cause I don't know a lot of Espanol
Answer:
the difference is 2 minutes
Step-by-step explanation:
is that -4 1/2???? cause then it would be -2
01010101010101010100101010101
<h3>
Answer: Theta = 13 degrees</h3>
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Rule:
If cos(A) = sin(B), then A+B = 90
This can be proven through the use of drawing a right triangle with acute angles A and B. Let's say C is the 90 degree angle.
Then note how cos(A) = adjacent/hypotenuse = AC/AB while sin(B) = opposite/hypotenuse = AC/AB. We see that both evaluate to AC/AB. So this confirms cos(A) = sin(B) is true.
The condition that A+B = 90 is from from the fact that any pair of acute angles of a right triangle are complementary angles.
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Using that rule, we can say
cos(77) = sin(theta)
leads to
77+theta = 90
and that solves to
theta = 90-77 = 13