Answer:
5/2-7/2 i or 2.5-3.5i
Step-by-step explanation:
expand the fraction remove the parenthesis and then calculate
Answer:
A, D.
Step-by-step explanation:
Tip: For these assignments just choose a random answer, then close the tab right after then go back in and repeat until you get the right answer. NOTE: this doesn't work on tests that make you submit it all in one, and only works effectively on multiple choice.
Just in case my image doesn’t upload, you basically just have to solve it like a normal equation. Replace the > sign with an = sign when you solve it so u don’t get confused. Then, when you get the final product, x = 3, then switch the = sign with the > sign again, so the answer is: x > 3
Answer:
A
Step-by-step explanation:
Hope this helps!
Answer:
(a) 0.343
(b) 0.973
(c) 0.189
Step-by-step explanation:
We are given that Probability of all vehicles examined at a certain emissions inspection station pass the inspection is 70% or 0.7 .
(a) <em>P(all of the next three vehicles inspected pass)=P(First vehicle passes the</em>
<em> inspection test) * P(Second vehicle passes the inspection test) * P(Third </em>
<em> vehicle passes the inspection test)</em>
= 0.7 * 0.7 * 0.7 = 0.343.
(b) P(at least one of the next three inspected fails) = 1 - P(none of the next
three inspected fails)
= 1 - ((1 - 0.7) * (1 - 0.7) * (1 - 0.7)) = 1 - 0.027 = 0.973
{ Because if probability of passing the inspection is 0.7 then probability of not passing will be 1 - 0.7 } .
(c) P(exactly one of the next three inspected passes) = It means that one of the three vehicles get passed the inspection.
- First vehicle passed the inspection , second and third does not pass.
- Second vehicle passed the inspection, first and third does not pass.
- Third vehicle passed the inspection, first and second does not pass.
Hence, <em>P(exactly one of the next three inspected passes)</em>
= 0.7 * (1-0.7) * (1-0.7) + (1-0.7) * 0.7 * (1-0.7) + (1-0.7) * (1-0.7) * 0.7
= 0.189 .
