Answer:
1.6 Seconds
Step-by-step explanation:
The equation would be h(t)=-16t^2+20t+8 since 20 is the velocity, and once you input that onto a graph the answer of when it hits the ground is 1.569 seconds, so rounded is 1.6 seconds.
Onne way is to eliminate terms
-2x+7y=2
3x-5y=-14
multiply first equation by 3 and second equaiton by 2
-6x+21y=6
6x-10y=-28
add them together to cancel x terms
-6x+21y=6
<u>6x-10y=-28 +</u>
0x+11y=-22
11y=-22
divide by 11
y=-2
subsitute
-2x+7(-2)=2
-2x-14=2
add 14 to both sides
-2x=16
divide both sides by 2
-x=8
multiply -1
x=-8
x=-8
y=-2
in (x,y) form
(-8,-2)
The <span>interquartile range</span> answer is 8.5
What is the mean of the following data set?<br>
{4, 5, 2, 4, 9, 7, 5, 5, 2, 8, }
sergij07 [2.7K]
If I'm not mistaken you add the numbers up, then you divide it by the amount of numbers there. 4 + 5 + 2 + 4 + 9 + 7 + 5 + 5 + 2 + 8 = 51
51 / the amount of numbers there (10) = 5.1
Hope this helps :)
A. 9 only bc only 9 can be equal to 9 if it was absolutely value then the answer would be 9 and -9