Answer:
66.5
Step-by-step explanation:
A=b•h/2
A=19•7/2 19•7=133
A=133/2 133/2= 66.5
A=66.5
2. 5, 10, and 20 are factors of 20 that are not also factors of 12.
Answer:
answer is
x1= 1/2 + 1/2 * i *sqrt(5)
x2= 1/2 - 1/2 * i *sqrt(5)
Step-by-step explanation:
Please refer to the attached picture for the procedure
Keep in mind, that the first step to use the quadratic formula is to rearrange the terms.