Set the quadratic = to 0 and solve for time, t:
-16t^2 - 8t + 20 = 0
Reduce this to:
-4t^2 - 2t + 5 = 0
Here a= -4, b= -2 and c =5. Then,
2 plus or minus sqrt( 4-4(-4)(5) )
t = ---------------------------------------------
-8
2 plus or minus sqrt(84)
= ------------------------------------
-8
Finish evaluating this. If either outcome is negative, discard it.
The result will be the number of seconds required for the ball to hit the grnd.
Answer:
The maximum temperature will be -10°C, then if T represents the temperature, we can write this as:
T ≤ -10°C
And the minimum temperature will be -25°C, then we must have that:
T ≥ -25°C
if we use both conditions, we will have:
-25°C ≤ T ≤ -10°C
We can write this range:
[-25°C, -10°C]
Where the [] symbols mean that the extremes are possible temperatures.
The length of the range will be:
-10°C - 25°C = 15°C.
Hello :
<span>equations represent functions :
</span><span>B. y = 3x
C. y = x2 - 3
D. y = 10x3</span>
The number of cans is proportional to the number of days, because each day it uses 2 c
Answer: The exact form is 5.3965953e-16. But in exponential form: 9^(-16).
Step-by-step explanation:
Use your calculator to plug in the negative powers and to multiply. Do it one step at a time. If you want exponential form, then here:
9^(-53) * 9^(37)
Add exponents keep base
9^(-16)
Hope this helps
