Answer:
21.) x = 0
23.) x = 0
Step-by-step explanation:
<em><u>21.)</u></em>
We know that Sides AD and BC are parallel to each other, so they are congruent as well, thus we can say:
x + 12 = 12
=> Now just subtract 12 on each side of "="
<u>x = 0 </u>
<u><em>23.)</em></u>
We know that sides SV and TU are parallel which makes them congruent, hence;
12 + 2x = x + 12
=> First subtract x from each side,
12 + x = 12
=> Lastly subtract 12 on each side:
<u>x = 0</u>
Hope this helps!
Answer:
When you have two negative signs, one turns over, and they add together to make a positive. If you have a positive and a negative, there is one dash left over, and the answer is negative.
<em>I hope this was the answer you were looking for - Lily~Senpai :P</em>
Answer:
C=2πr
Step-by-step explanation:
Its on the wall of my math class
Answer:
-6x^2+21x+18
Step-by-step explanation:
Given Information:
Probability of success = p = 0.06
Number of trials = n = 20
Required Information:
Probability of 1 or more donors of "O" blood group = ?
Answer:
P( x ≥ 1 ) = 0.710
Step-by-step explanation:
We are given the probability that a donor has type "O" blood group.
We want to find out the probability of having 1 or more donors who has type "O" blood group out of 20 donors.
P( x ≥ 1 ) = 1 - P( x = 0)
So we will first find the probability that none of the donors has type "O" blood group then we will subtract that from 1 to get the probability of having 1 or more donors with "O" blood group.
P( x = 0) = (p⁰)(1 - p)²⁰
P( x = 0) = (0.06⁰)(1 - 0.06)²⁰
P( x = 0) = (1)(0.94)²⁰
P( x = 0) = 0.290
So the probability of having 1 or more donors with "O" blood group is
P( x ≥ 1 ) = 1 - P( x = 0)
P( x ≥ 1 ) = 1 - 0.290
P( x ≥ 1 ) = 0.710
P( x ≥ 1 ) = 71%
Therefore, the correct answer is D. 0.710