C because it crosses the y-axis at -3 and it goes up at a rate of rise 1, right 1
Answer:
see below
Step-by-step explanation:
h=−4.9t^2 +39.2t
When will if fall back to the ground
When will h=0
0 =−4.9t^2 +39.2t
Factor out a -t
0 = -t (4.9t -39.2)
Using the zero product property
-t =0 4.9t - 39.2 =0
t =0 4.9t = 39.2
t =39.2 /4.9
t =8
It will reach the ground again at 8 seconds
The maximum height is halfway between the zeros
(0+8)/2 = 4
It will reach the max height at 4 seconds, substituting this in to find the max height
h=−4.9 (4)^2 +39.2(4)
h = 78.4 meters
This will only be applicable between t=0 and t=8 seconds
0≤t≤8 seconds
682 is because it is a bit number
almost right
400 1000
____ = _____ now you cross multiply to solve (cross products
14 x
400 times x = 14 times 1000
400x = 14000 now divide both sides by 400
400 400
x = 35
35 dolls of 1000 would be defective
Answer:
The explicit rule for this situation is
In row 12 there will be 14 pins
Step-by-step explanation:
We have an initial amount of 3 pins in the first row. Let's call the number of pins in row n.
where n is an integer and .
So
In row n + 1 there will always be a pin more than in the previous row n, then:
Then:
<em>Finally in row 12 there will be:
</em>