Answer:
x2x ^
4 −9x ^3 +11x ^
2 −3x−6
/x
Step-by-step explanation:
Answer:
the answer would be 2d/\2 - 2d
Step-by-step explanation:
I took the test and got it right
Answer:
35°
Step-by-step explanation:
Angles DCE and DAE are supplementary, so ...
∠DCE = 180° -∠DAE = 180° -145°
∠DCE = 35°
Answer:
Step-by-step explanation:
a.
Kenji ran faster than the class average by 0.25 of a standard deviation while Nedda was slower than the average in her class.
b.
Rachel: average - 1st deviation
Kenji: average - 0.25 standard deviation
Nedda: slower than average so it's definitely not her.
Since Rachel is faster than the average and differs by the most standard deviations compared with Kenji,
So, Rachel is the faster one.
Answer:
2432.5 gallons
Step-by-step explanation:
Given that the pool loses 70% of it's water every ten minutes, it means that in 30 minutes, 70% of the volume of water present would have been lost. Mathematically, in the first 10 minutes, the water lost
= 70% * 2500 gallon
= 1750 gallons
Volume of water left
= 2500 - 1750
= 750 gallons
After another 10 minutes (20 minutes in total), the water lost
= 70% * 750
= 525 gallons
Volume of water left
= 750 - 525
= 225 gallons
After another 10 minutes (30 minutes in total), the water lost
= 70% * 225
= 157.5 gallons
Volume of water left
= 225 - 157.5
= 67.5 gallons
Total volume of water lost after 30 minutes
= 2500 - 67.5
= 2432.5 gallons