2+2+2000+4000+5000+6000
2 answers:
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The answer is nonlinear. It goes in a sharp downward curve, whereas a linear function is a straight line.
Answer: second option
Step-by-step explanation:
The standard form of a quadratic equation is:
Then, to write the quadratic equation given in the problem in standard form, you must substract 1 from both sides of the equation. Then you have:
Given the quadratic equation above, to find the value of you must substitute:
a=2; b=5 and c=-1 into
Thenrefore, you obtain the following result:
26 to nearest year
We require the total of the sums of ages for both groups before calculating the mean for all 16
using mean =
Women
27 = ( cross- multiply )
sum = 9 × 27 = 243
Men
25 = ( cross- multiply )
sum = 7 × 25 = 175
Total sum of all 16 = 243 + 175 = 418
mean = = 26 ( to nearest year )