Answer:
1/20 or in a decimal 0.05
Step-by-step explanation:
Hope This helps :)
20 has been added to the total of scores, so the new mean for the 20 scores will be 20/20 = 1 higher than it was.
The new population mean is 15+1 = 16.
<span>The total surface area is SA = 6 </span>×

;
SA = 6 ×

= 6 × 81 = 486

;
the answer is x + 3x^3 - 7x^4
Answer:
0
Step-by-step explanation:
On a graph, any line that is horizontal has a slope of zero. Try any points and and plug them into the slope formula equation
(Y2-Y1/X2-X1).
The answer will always be zero.