I put in the x coordinate for where y was 80 and the y coordinate for where x was 3. Then I subtracted them to get the slope. Hope this helps.
Sn=n/2[2a+(n-1)d]
s7 means n=7
a7=7/2[2(13)+(7-1)(3)]=7/2(44)=154
Ans:C
Answer:
The predicted height of the woman is 178.73 cm.
Step-by-step explanation:
Consider the provided function.

Where x represents the height of humerus and H(x) represents the height of woman.
Substitute x=39 in above function.



Hence, the predicted height of the woman is 178.73 cm.
Answer:
2(5)+5(0)=10
Step-by-step explanation:
There are several ways for this equation to work but a very simple way is shown below.
2*510+5*0=10
10+0=10
10=10