Answer:
15
Step-by-step explanation:
use pythagorean theorem and fill in the blanks and solve for a^2
9514 1404 393
Answer:
(1, 1)
Step-by-step explanation:
Did you watch the video?
The y-coefficients have opposite signs and one is a multiple of the other. It is convenient to divide the second equation by 2 and add that to the first.
(5x -2y) +1/2(4x +4y) = (3) +1/2(8)
7x = 7 . . . . simplify
x = 1 . . . . . divide by 7
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4(1) +4y = 8 . . . . substitute for x in the second equation
4y = 4 . . . . . . . . subtract 4
y = 1 . . . . . . . . . . divide by 4
The solution is (x, y) = (1, 1).
Answer:
d ≈ 60 ft., h ≈ 104 ft.
Step-by-step explanation:
Additionally: angle of depression = 60°
The angle of elevation and the angle of depression are congruent.
I did the math and it is 4x
This is a tricky one! All I know is that 45% of 110 is 49.5. You can work it out from there if you want.
