The curve y = 2x^3 + ax^2 + bx + 7 has a stationary point at the point (2,-13). a Find the value of a and the value of b.
b Find the coordinates of the second stationary point on the curve.
c Determine the nature of the two stationary points.
d Find the coordinates of the point on the curve where the gradient is minimum
and state the value of the minimum gradient.​

.24

step-by-step explanation:

the probability is   .24

the first player had the highest probability of getting a silver marble

the game could be made fair by adding back the marble that was drawn after each draw

b. 1.25 hr

step-by-step explanation:

if you have a constant speed of 60 mph, then you have a ratio between 60 mi. to 1 hr. dividing both sides by 60 we get the ratio

1 mi. to

then mult. both sides by 75 we get the ratio

75 mi. to

simplifying we get

75 mi. to

or 1.25 hr.

the answer is 5/14.

hope this .

a mantle plume is an upwelling of abnormally hot rock within the earth's mantle. as the heads of mantle plumes can partly melt when they reach shallow depths, they are thought to be the cause of volcanic centers known as hotspots and probably also to have caused flood basalts.

step-by-step explanation: