Answer:
-25/6
Step-by-step explanation:
If you would like to know the values of a, b, and c in the quadratic equation -2x^2 + 4x - 3 = 0, you can find this using the following steps:
ax^2 + bx<span> + c = 0
</span>
-2x^2 + 4x - 3 = 0
a = -2
b = 4
c = -3
The correct result would be <span>d. a = –2, b = 4, c = – 3</span>.
Answer:
C) 18
Step-by-step explanation:
In order to get the answer to this word problem you have to mentally image in your head looking at a coordinate graph. You see the point (2, -3) which is on the x or y axis. You see the point (5, 0) which is also on the x or y axis. When those two points or coordinates cross, they get the number 18.
Answer:
a. yes
b = 0.0563
c. 0.1460
d. 0.7560
Step-by-step explanation:
a. Yes. n = 10 identical trials with two possible outcomes on each with p = 0.25.
b. p(x= 0) = 10!/(0!*10!)* .250* .7510= 1 * 1 * 0.0563 = 0.0563.
c. p(x= 4) = 10!/(4!*6!)* .254* .756= 210 * .0039 * 0.1780 = 0.1460
d. p(x= 1) = 10!/(1!*9!)* .251* .759= 10 * .25 * 0.0751 = 0.1877
p(x≥ 2) =1 - p(x< 2) = 1 – (0.0563 + 0.1877) =0 .7560
