Answer:
The percentage of error in the question is 75%.
Step-by-step explanation:
To find the percentage of error, we need to subtract the actual value from the value that was expected, divide the result by the expected value.
He predicted that the crop would produce 8 bushels so this is our expected value. The actual value, which is the number of bushels produced, is 14.
- If we make the calculation (14 - 8) / 8 = 6 / 8.
- And then multiply the result by 100 to find the percentage, (6 / 8) x 100 = 75.
So the percentage of error in the question is 75%.
I hope this answer helps.
Answer:
7. Option B:40 is the correct answer.
8. Option D: y = 40x+75 is the correct answer.
Step-by-step explanation:
Given that:
Charges per hour = $40
Fee charged by repairman = $75
x = number of hours
y = total fee
According to given statement;
y = 40x+75
The standard equation is
y = mx + b
On comparing;
Slope of the line is given by m, therefore
Slope = m = 40
Hence,
7. Option B:40 is the correct answer.
8. Option D: y = 40x+75 is the correct answer.
Answer:

Step-by-step explanation:
We are given that
and
are the zeroes of the polynomial 

We have to find a quadratic polynomial whose zeroes are
and
.
General quadratic equation

We get







Substitute the values


Hence, the quadratic polynomial whose zeroes are
and
is given by

D..............................
Answer:
Question 11 is correct (7.9).
Question 12 is not 8.3, it is 9.6.
Step-by-step explanation: