A=pi*r^2
dA/dt=2*pi*r
1) 24*pi cm^2/min
2)64*pi cm^2/min
Answer:
P(yellow or red) =8/15
Step-by-step explanation:
There are 15 marbles, 3 green, 4 blue, and 5 red marbles.
3+4+5 = 12
That means there are 15-12 = 3 3 yellow marbles.
3 green,
4 blue
5 red
3 yellow
To find the probability of yellow or red, we add the number of yellow and red marbles together over the total number of marbles
P(yellow or red) = (yellow +red)/ total
= (3+5)/ 15
=8/15
Answer:
-84, -71, -58, -45, -32, -19
Step-by-step explanation:
This is a chemistry problem btw. But, either way, the formula for density is mass per unit of volume. To solve for volume, bring the D over to get M/D = V
(327g)/(1.05g/ml) is the equation. Grams cancel and you’re stuck with 311.428571mL. That isn’t your answer tho, because that isn’t the right amount of sig figs. We have two figs at the least so the right answer would be 311.42 or 311.43mL. We want it in scientific notation, so move the decimal place between 3 and 1. That’s two spots to the left, so the power would be 2. C is your right answer
My chem professor told me to round to even instead of rounding up all the time. Either way, the hundreds place is always a percent error of plus or minus 0.01
As the Question is not clear
But there are two possibilities
1. →→Cancelling x+2 from numerator and denominator
→→ Using the formula (a³ + b³) =(a+b)(a² - ab + b²)
Or if
→→Cancelling x-2 from numerator and denominator
Using the formula (a³ - b³) =(a-b)(a² + ab + b²)
Statement (1) appears true.
So, correct option is x²- 2 x + 4 or x² + 2 x + 4