5)
= - i - 2 - 3i
= - 4i - 2
= - 2 (2i + 1)
7)
= - 4 [(2 -2i - i (8 - 4i)]
= - 4 (2 - 2i - 8i + 4i^2)
= - 4 (4i^2 - 10i + 2)
= (- 4) (2) (2i^2 - 5i + 1)
= - 8 (2i^2 - 5i + 1)
9)
= p^2 - 4p - 4p + 16
= p (p - 4) - 4 (p - 4)
= (p - 4) (p - 4)
= (p - 4) ^2
11)
= p^2 - 8p - 8p + 64
= b (b - 8) - 8 (b - 8)
= (b - 8) (b - 8)
= (b - 8)^2
<u>Explanation </u><u>:</u>
<u>Given that:</u>
- In a box 25 cards are there and 1 to 25 numbers are written on them.
- • One card is drawn randomly.
<u>To Find:</u>
- • What is the probability that it is multiple of 5.
<u>We know that:</u>
P(E)= F/T
<u>Where,</u>
P(E)= Probability of an event
• F= Favourable outcomes . T = Total outcomes
<u>We have:</u>
F = Number of cards which are multiple of 5
Cards having the number 5, 10, 15, 20, 25 are the multiples of 5.
So, F = 5
T = Total number of cards
• T = 25
P(F) The probabilityP(E) = The probability that it is multiple of 5
Finding the probability that it is multiple of 5:
<u>Hence,</u>
The probability that it is multiple of 5 is ⅕
Answer:
26/15
Step-by-step explanation:
See attached image.
credits to the owner:lisboa, another brainly expert
<h2><em>hope</em><em> it</em><em> helps</em><em>!</em></h2>
