5x - 25 + 3x + 9 = 180
8x - 16 = 180
8x = 196
x = 24.5
Answer:
c, 14
Step-by-step explanation:
V= x*(10-2x)(8-2x)
for greatest volume, differentiate v w.r.t x and equate to 0,
dv/dx= (10-2x)(8-2x) + x(-2)(8-2x)+ x(10-2x)(-2)=0
you get x from solving the quadratic equation. volume will be max at that x
for number 10a is 4,10,16,22
10c is 3,6,12,24
Answer:
I'm assuming that the cube is labelled 1-6. There are 6 * 6 * 6 = 216 total outcomes. There are 3 evens and 3 odds so there are 3 * 3 * 3 = 27 successful outcomes. Probability will be 27 / 216 = 1 / 8.
