ANSWER
EXPLANATION
We have been given the quotient,
to simplify.
We need to rewrite the numerator as difference of two cubes.
We need to make use of the difference of cubes formula,
We now let,
Then the numerator becomes,
This simplifies to,
We cancel out common factors to obtain,
If the $75 for the part is included in the $350 then it took 5.5 hours to install it
1 1/3 + 1 2/3=3 or 1 1/2 +1 1/2=3
Answer:
- complement: 32.8°
- supplement: 122.8°
Step-by-step explanation:
The sum of an angle A and its complement C is 90°:
A + C = 90°
C = 90° -A . . . . . subtract A from both sides.
That is, the complement of an angle is found by subtracting the angle from 90°.
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The sum of an angle and its supplement is 180°. This means the supplement of an angle is found by subtracting the angle from 180°. You may notice the supplement is 90° more than the complement.
A + S = 180°
S = 180° -A = 90° +(90° -A)
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For the given angle, the complement is ...
C = 90° -57.2° = 32.8°
And the supplement is ...
S = 180° -57.2° = 122.8°
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<em>Additional comment</em>
We generally like angle measures to be positive (as with all measures in geometry). Hence, we might say that the complement of an angle greater than 90° does not exist. YMMV
Answer:
9 days.
hope it helps
Step-by-step explanation:
As per given data
1/x=1/(x+27)+1/(x+3)
1/x=(x+3+x+27)/(x+27)(x+3)
X^2+30x+81=2x^2+30x
X^2=81
X=9
so A&B can together do the work in 9 days