Answer:
Step-by-step explanation:
Comment
You are given values for the adjacent side of <x and the hypotenuse of a right triangle. This defines the Cosine of an angle
Equation
Cos(x) = a/c the way you have labeled it.
Givens
a = 9
c = 18
Solution
Cos(x) = a / c
Cos(x) = 9 / 18
cos(x) = 1/2
x = cos-1(1/2)
x = 60 degrees
Answer
x = 60
It will take you 3/4 of an hour, or 45 minutes to paint 1 wall.
Answer:
0.005323
Step-by-step explanation:
Use the algorithm method
Step 1; multiple equation 2 by -2: 14x+8y=-18
step2: subtract this new equation from equation 1 to eliminate x:
2y-8y=18-(-18)
-6y=36
y=-6
step 3: substitute y=6 in equation 2: -7x-4*(-6)=9, -7x=-15, x=15/7
Answer:
Step-by-step explanation:
So, we're suppsoed to find 21% of 92,000
So, we can make 21 percent to 0.21
And so we have to multiply 92,000 by 0.21, which is $19320
