B= 20°
and c = 160°
b is equal to the given angle, b = 20°
c is 180 - 20 = 160°
I think the first one might be 18 second might be 10
Answer:
d
Step-by-step explanation:
Answer:
78
Correct term:60
Step-by-step explanation:
We are given that

The quotient of this expression is given by

We have to find the term in this expression which contains an error.

The quotient of this expression is given by


Using the formula

We can see that in the given expression there is 60 in place of 78.
The error in the expression of quotient is 78.
Correct term is 60.
Answer:
Step-by-step explanation:
<u>The side of the square is w/2, then its area is:</u>
<u>The shaded area is the difference of areas of the rectangle and the square:</u>
<u>This can be simplified:</u>
- 56w - w² = 336
- w² - 56w + 336 = 0