Daniel expanded the expression as shown. -2(-8x-4y+3/4)=10x-8y=1 1/4

A. What errors did he make? Select three options.
B. The first term should be negative.
C. The second term should be positive.
D. The last term should be -1 1/2, not -1 1/4.
E. He added -8 and -2 instead of multiplying -8 by -2.
F. He did not simplify the expression completely.

A. the first term should be positive

B. the second term should be positive

C. the last term should be - 1 1/2

Step-by-step explanation:

done easy

Option D: is the value of b

Explanation:

Given that the formula for the area of a trapezoid is

We need to solve the formula for b.

The value of b:

Let us solve the formula to determine the value of b.

Multiplying both sides of the formula by 2, we get;

Dividing both sides by h, we get;

Subtracting both sides of the formula by B, we have;

Thus, the value of b is

Hence, Option D is the correct answer.