45
since x=9 plug in 9 into the equation to get
4(9)+9
multiply 4(9) to get
36
Then add 9
which then equals 45
Answer:
B
Step-by-step explanation:
bc it looks like they're adding a new side for each picture
Using the binomial distribution, it is found that there is a 0.5 = 50% probability of selecting a two-child family with one boy and one girl.
For each child, there are only two possible outcomes, either it is a boy, or it is a girl. The probability of a child being a boy or being a girl is independent of any other child, which means that the binomial distribution is used to solve this question.
Binomial probability distribution
The parameters are:
- x is the number of successes.
- n is the number of trials.
- p is the probability of a success on a single trial.
In this problem:
- Two children, hence .
- Equally as likely to be a boy or a girl, hence .
The probability of one of each is P(X = 1), hence:
0.5 = 50% probability of selecting a two-child family with one boy and one girl.
A similar problem is given at brainly.com/question/24863377
<span><span><span><span>x^2</span>−<span>7x</span></span>+10</span>=0
</span>Step 1: Factor left side of equation.<span><span><span>
(<span>x−2</span>)</span><span>(<span>x−5</span>)</span></span>=0</span>
Step 2: Set factors equal to 0.<span><span><span>
x−2</span>=<span><span><span>0<span> or </span></span>x</span>−5</span></span>=0</span><span><span>
x=<span><span>2<span> or </span></span>x</span></span>=5</span>
Answer: x=2 or x=5
Answer:
Only the second one represent a function because the x does not repeat.
For the first and last functions the x is repeating; therefore they are not functions.