Y=7-4X
GRADIENT OR SLOP NEED TO BE SAME TO BE PARALLEL.
THE FIRST LINE WHEN X=0 Y IS 9 FROM EQUATION WHEN YOU PUT X=0 Y WILL BE 9
THE SECOND LINE WHEN X=0 Y IS 7 PASSES THROUGH (0,7)
Answer: Cosine
This is because cosine involves the adjacent over hypotenuse
cos(angle) = adjacent/hypotenuse
12 plus 18 over 3 so it is 12+6 which is 18 So 18 is your final answer
What you should do in this case is to use the following trinonometric relationship:
senx = C.O / h
Where
C.O: Opposite leg.
h: hypotenuse.
Substituting:
senx = (7) / (9)
Clearing x:
x = ASIN ((7) / (9))
x = 51.05755873
Answer:
The value of x is
x = 51 degrees.
Nickels is 0,05 of dolar - n
dimes is 0,1 o dolar -d
quarters is 0,25 of dolar -q
dimes =2nickels
d=2n
quarters=2dimes
q=2d=4n
12,5=n(0,05)+2n(0,1)+4n(0,25)
12,5=0,05n+0,2n+n
12,5=1,25n
n=10
q=4n=40
There are 40 quarters
