Answer: 2.12 seconds
Step-by-step explanation:
From the question, we are informed that Josie ran a lap in 45.23 seconds while Erica ran a lap in 43.11 seconds.
To calculate the extra amount of time it took Josie to complete the lap, we subtract Erica's time from Josie's time. This will be:
= 45.23 seconds - 43.11 seconds
= 2.12 seconds
Y=a (x-h) ^ + k
so your parabola has an equation of:
y=a(x+2)^ -3
-2=a(5+2) ^ -3
-2=a(-3)^-3
-2=9a-3
adding them to both sides
1=9a
divide both sides:
1=9a
Divide both sides by 9:
a=1/9
the vertex form is:
y=(1/9)(x+2)^-3
The expanded form is:
y=(1/9)x^ + (4/9)x - (23/9)
Anw: E. (1/9)
Answer:
Step-by-step explanation:
3.232323-repeats
1.789-terminates
0.99-repeats
6.25-terminates
explanation: When you say rose that means the temp got hotter right? If so then at midnight it was -28 degrees Celsius and it rose 8 degrees to -20 degrees Celsius at 6:00am.
Answer:
2.15 x 10^4
Step-by-step explanation:
since 21.5 is not between 1 and 10 we have to divide 21.5 by 10 which is 2.15 but now we have to x 10 to 10^3 which is 10^4
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