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3 years ago

Ok, I just need this quick question:

Mathematics

2 answers:

il63 [147K]3 years ago

5 0

I have to get the kids out on my way to school today but I’m going on a test tomorrow morning so I’m sorry I’m just gonna go do you find me

trasher [3.6K]3 years ago

3 0

I think - 4 sin $\frac{x}{2}$ - 1 its probably wrong but I attempted it sorry if wrong.

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(Scientific Notation in the Real World MC)

Brrunno [24]

The average number of viewers over the two week is D. 4.85 x 10^5.

<h3>How to calculate the value?</h3>

It should be noted that the scientific notation simply has to do with writing of numbers that are either too large or too small. This will be illustrated thus:

In this case, the TV show had 5.6 x 10^5 viewers in the first week and 4.1 x 10^5 viewers in the second week.

Therefore, the average number of viewers over the two weeks will be:

= (5.6 × 10^5) + (4.1 × 10^5) / 2

= 4.85 × 10^5

Note that we had to divide by 2 since it's average.

Learn more about notation on:

brainly.com/question/5756316

#SPJ1

5 0

1 year ago

PLSSSSS HELP ME I WILL GIVE BRAINLIEST!!!!!!

Leto [7]

Top right is ur answer please give brainliest

3 0

4 years ago

A real estate agent has 14 properties that she shows. She feels that there is a 50% chance of selling any one property during a

Ratling [72]

Answer:

91.02% probability of selling more than 4 properties in one week.

Step-by-step explanation:

For each property, there are only two possible outcomes. Either it is sold, or it is not. The chance of selling any one property is independent of selling another property. So we use the binomial probability distribution to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

In which $C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

And p is the probability of X happening.

In this problem we have that:

$n = 14, p = 0.5$

Compute the probability of selling more than 4 properties in one week.

Either you sell 4 or less properties in one week, or you sell more. The sum of the probabilities of these events is decimal 1. So

$P(X \leq 4) + P(X > 4) = 1$

We want to find $P(X > 4)$ . So

$P(X > 4) = 1 - P(X \leq 4)$

In which

$P(X \leq 4) = P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3) + P(X = 4)$

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

$P(X = 0) = C_{14,0}.(0.5)^{0}.(0.5)^{14} = 0.000061$

$P(X = 1) = C_{14,1}.(0.5)^{1}.(0.5)^{13} = 0.000854$

$P(X = 2) = C_{14,2}.(0.5)^{2}.(0.5)^{12} = 0.0056$

$P(X = 3) = C_{14,3}.(0.5)^{3}.(0.5)^{11} = 0.0222$

$P(X = 4) = C_{14,4}.(0.5)^{4}.(0.5)^{10} = 0.0611$

$P(X \leq 4) = P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3) + P(X = 4) = 0.000061 + 0.000854 + 0.0056 + 0.0222 + 0.0611 = 0.0898$

Finally

$P(X > 4) = 1 - P(X \leq 4) = 1 - 0.0898 = 0.9102$

91.02% probability of selling more than 4 properties in one week.

8 0

3 years ago

Need help 2x = 2(x-3)

GenaCL600 [577]

Answer:

0=-6 There can't be an answer for x

Step-by-step explanation:

1: distribute: 2x=2x-6

2: isolate x by subtracting 2x from both sides: 0=-6

3 0

4 years ago

Read 2 more answers

Suppose y varies inversely with x, and y = 18 when x = 12. What is the value of x when y = 24? NO LINKS OR ANSWERING YOU DON'T K

Luba_88 [7]

Answer:

B. 9

Step-by-step explanation:

We are given that y varies inversely with x. Recall that inverse variation has the form:

$\displaystyle y=\frac{k}{x}$

Where k is the constant of variation.

We are given that y = 18 when x = 12. Hence:

$\displaystyle (18)=\frac{k}{(12)}$

Solve for k. Multiply both sides by 12:

$k=12(18)=216$

Thus, our equation is:

$\displaystyle y=\frac{216}{x}$

We want to find x when y = 24. Substitute:

$\displaystyle \frac{24}{1}=\frac{216}{x}$

Cross-multiply:

$24x=216$

Divide both sides by 24. Hence:

$x=9$

Our answer is B.

5 0

3 years ago

Read 2 more answers