Radii are 4m & 8m
Hope I helped! ( Smiles )
Step-by-step explanation:
what do we need to do ?
just calculate the value of the expression with these values for the variables ?
what's the problem ? this is basic calculating :
-6/2 - 4 + 9×4 = -3 - 4 + 36 = 29
remember (please, for your life !) that multiplication and division always have to be calculated before additions and subtractions (except when brackets force is to go a different route).
Answer:
45.7 s
Step-by-step explanation:
Darya:
Number of laps = 13
Average time per lap = 23.5 seconds
Total time to swim 13 laps = Number of laps × Average time per lap
= 13 × 23.5
= 305.5 seconds
Kana:
Number of laps = 10
Average time per lap = 25.98 seconds
Total time to swim 10 laps = Number of laps × Average time per lap
= 10 × 25.98
= 259.8 seconds
It took longer for Darya to swim
13 laps than for Kana to swim 10 laps.
How much longer?
= 305.5 seconds - 259.8 seconds
= 45.7 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)
So you divide 12.00 by 0.75 and you get 16 which is the number of cookies he sold.
