Answer:
Step-by-step explanation:
19.
2x^2+x-6=0
x^2+x-12=0
(x+2)(2x-3)=0
x=-2,3/2
20.
x^2+8x+15=0
(x+3)(x+5)=0
x=-3,-5
Answer:
.
c)"At least 1 O+" is equivalent to "not none O+" (forgive the incorrect English).
P(not none O+)+P(none O+)=1
P(not none O+)=1-P(none O+)
P(not none O+)=1-0.00491
P(at least 1 O+)=0.995
Step-by-step explanation:
Answer:
Step-by-step explanation:
To find a function's inverse, you first switch the x and y coordinates, and then solve for the new y. The same goes for finding an inverse's function. We have:
We will switch the x and y variables and then solve for the new y:
and
11x = y + 4 so
11x - 4 = y and
11x - 4 = f(x) which is choice C.
Answer:
x=30
Step-by-step explanation:
1/2(x + 6) = 18
Distribute
1/2 x + 1/2 *6 = 18
1/2 x +3 = 18
Subtract 3 from each side
1/2 x +3-3 = 18-3
1/2 x = 15
Multiply each side by 2
2*1/2x = 15*2
x = 30
