Part A
We need to determine values of x for which 2x−1 is positive
⇒ 2x - 1 > 0
⇒ 2x > 1
⇒ x >
Hence, for all values of x that are greater than , the binomial 2x-1 is positive
Part B
We need to determine values of y for which 21−37 is negative
⇒ 21-3y < 0
⇒ 21 < 3y
⇒ 7 < y
Hence, for all values of y that are greater than 7, the binomial 21-37 is negative
Part C
We need to determine values of c for which 5−3c is greater than 80
⇒ 5-3c > 80
⇒ -3c > 75
⇒ -c > 25
⇒ c < -25
Hence, for all values of c that are less than -25, the binomial 5-3c is greater than 80
Answer:
give us options dude
Step-by-step explanation:
The dice has i think about 10-11 time chance since it landed 10 times in a row already and not 11
Answer:
Value in $= 3x -600
Step-by-step explanation:
Let the value of the stock before investment= x
At the first year , the value tripled
Value after first year=3x
The second year , the stock reduces by $600.
So
The value of the stock after the second year
Value in $= 3x -600
The formula for surface area of a sphere is A=4*PI*r^2
Using that formula and the known surface are we can find the radius. We can then use that to find the volume.
500 = 4*PI*r^2
Divide both sides by 4:
500/4 = PI *r^2
125 = PI *r^2
Divide both sides by PI
125/PI = r^2
39.79 = r^2
r = SQRT(39.79)
r = 6.3 cm
Now we can find volume using V=4/3*PI*r^3
V = 4/3 *PI *6.3^3
V= 1051.3
The answer is C