The complement of an angle is
angle+complement=90 degrees
angle+supplement=180
so if angle+22=90
subtract 22
angle=68
supplement=
68+supplement=180
subtract 68
supplement=112
Answer:
2062.79 inches cubed
Step-by-step explanation:
Formula- πr2h
= π×6.82×14.2
= 656.608π
= 2062.7948690883 inches cubed
Order of operations
PEMDAS
There are no parenthesis
There are no exponents
Now, we do multiplication and division from left to right
(9x9) + 8 - (8/10)
=
81 + 8 - 0.8
Now, we do addition and subtraction from left to right
(81 + 8) - 0.8
89 - 0.8
=
88.2
Answer:
x=1 and y=−2
Step-by-step explanation:
Multiply the first equation by 9,and multiply the second equation by -8.
9(−7x−8y=9)
−8(4x−9y=22)
Becomes:
−63x−72y=81
−32x+72y=−176
Add these equations to eliminate y:
−95x=−95
Then solve−95x=−95for x:
−95x
−95
=
−95
−95
(Divide both sides by -95)
x=1
Now that we've found x let's plug it back in to solve for y.
Write down an original equation:
−7x−8y=9
Substitute1forxin−7x−8y=9:
(−7)(1)−8y=9
−8y−7=9(Simplify both sides of the equation)
−8y−7+7=9+7(Add 7 to both sides)
−8y=16
−8y
−8
=
16
−8
(Divide both sides by -8)
y=−2
