Answer:
Step-by-step explanation:
Cos(Q) = adjacent to Q/Hypotenuse
adjacent = 15
Hypotenuse = 17.7
Cos(Q) = 15/17.7
Cos(Q) = 0.8475
The answer is C.
D is impossible. The cos of any angle can never be more than 1.
B is Tan(Q). They are not the same.
A is Sin(Q)
The digit in the hundred thousands place is the 2
Answer 20/25
When they ask you about ratio, the easy way to reach an answer is by dividing the fraction, in this case if you divide 12 over 15, you'll get 0.8
The same way if you divide 20 over 25. Try yourself if you want to check
elimination means to get rid of one variable by altering the coefficients of variable (by multiplying and diving by some constant number)
in this case, if you just add the two equation, y gets cancelled you get 5x=20 or x=4
put it in any equation to get y (this works because both lines pass through the same point, so they must satisfy that point) to get y=2
Answer:
y = 4x -13
Step-by-step explanation:
parallel lines have the same slope.
y = mx + b
-5 = 2(4) +b
-5 = 8 + b
b = -13
y = 4x -13
