Answer: The answer is.......
2.875
Answer:
y=-½x+1
Step-by-step explanation:
The slope is negative because it goes down from left to right
The y-intercept is ½ because the point where the line meets the y-axis is ½
Answer:
0.448 seconds
Step-by-step explanation:
d = -16t² -4t + 412
find t when d = 407
substituting d = 407 into the equation:
407 = -16t² -4t + 412 (subtract 407 from both sides)
-16t² -4t + 412 - 407 = 0
-16t² -4t + 5 = 0 (multiply both sides by -1)
16t² + 4t - 5 = 0
solving using your method of choice (i.e completing the square or using the quadratic equation), you will end up with
t = (-1/8) (1 + √21)= -0.70 seconds (not possible because time cannot be negative)
or
t = (-1/8) (1 -√21) = 0.448 seconds (answer)
First one is A
Second one is C
Third one is B
Trust me
Mean=average=sum of terms/number of terms...
(25+17+38+11+24)/5
115/5
23
