Subtract and reduce: 2 2/3 - 1 1/2
1 answer:
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Answer:
In the case of the second frame, the sides are not perpendicular to each other.
Step-by-step explanation:
A. The length (l) of the frame is 20 and width (w) is 15.
If the frame is a rectangular one, then diagonal (d) can be calculated from the Pythagoras Theorem as
⇒ d = 25 (Also given)
So, the frame is rectangular one.
B. The length (l) of the frame is 22 and width (w) is 10.
If the frame is a rectangular one, then diagonal (d) can be calculated from the Pythagoras Theorem as
⇒ d = 24.166 ≠ 24 (24 is the given value)
So, the frame is not a rectangular one.
C. The length (l) of the frame is 21 and width (w) is 20.
If the frame is a rectangular one, then diagonal (d) can be calculated from the Pythagoras Theorem as
⇒ d = 29 (Also given)
So, the frame is rectangular one.
Therefore, in the case of the second frame, the sides are not perpendicular to each other. (Answer)
Answer:
not factorable
Step-by-step explanation:
The easiest way to factor is to find two numbers of the "a" value (the coefficient before ) and the factors of the c value (10) that ADD up to give you -9, in this case it would be:
1 -10 --> 1(-10) gives you -10
1 -1 --> 1(-1) gives you -1
adding these together -10 + (-1) = -11 which does not equal -9.
You could stop here and conclude that this is not factorable by inspection.
Another method: using the quadratic formula to find its roots.
Roots: and