<span>(x + 6y) − (3x − 10y)
= x + 6y -3x + 10y
= -2x + 16y
Value of A: -2</span>
Answer:
30
Step-by-step explanation:
Q: (9/(3/10))
To solve, change the division sign to multiplication, and flip the denominator fraction.
(9/(3/10)) = 9 * (10/3)
Simplify. Multiply, then divide.
(9 * 10)/3 = (90)/3 = 30
30 is your answer.
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ADC = 40 + 30 = 70 degrees
DBC is given at 45 deg
AEB = 100 degrees, vertical angle from intersecting lines
BCD = 50 + 50 = 100 degrees
let's recall on the Unit circle that, as the angle opens opens opens, the "y" value goes up up reaches 1, the as the angle continues it goes back down down and so on.
to make it short, sin(θ) just as cos(θ) will always spit out a value that is either -1 or 1 or anywhere in between, thus their range is -1 ⩽ sin(θ) ⩽ 1.
