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3 years ago

Any girl here.........let's chàt

Mathematics

2 answers:

user100 [1]3 years ago

8 0

Answer:

hey

Step-by-step explanation:

Rashid [163]3 years ago

4 0

Help answer what you need help question 1-17

You might be interested in

Solve the equation<br> 5x - 5 = 3x - 9<br><br> A. 1<br><br> B. -2<br><br> C. -3<br><br> D. -1

enot [183]

The answer is B.) -2, hope it helps

3 0

3 years ago

3 to the x power - 1 = 9 to the x power+2

Tom [10]

So we need to solve:

3ˣ⁻¹ = 9ˣ⁺²

To do this, we need to have the same base for both sides of the equation.

So let's go with the base of 3.

3² = 9

3ˣ⁻¹ = (3²)ˣ⁺²

3ˣ⁻¹ = 3²ˣ⁺⁴

Since the bases are the same now, we need to get rid of them and we would get:

x - 1 = 2x + 4

Subtract both sides by 2x:

-x - 1 = 4

Add 1 to both sides:

-x = 5

Divide both sides by -1:

x = -5

8 0

3 years ago

20 POINTS!!!

Ksivusya [100]

Answer:

25. $\frac{4 + 4}{52}$ = $\frac{8}{52}$ = $\frac{4}{26}$ = $\frac{2}{13}$

$\frac{2}{13}$ = $\frac{2*100}{13}$ % = 15 $\frac{5}{13}$ %

Hope this helps you!

Bye!

8 0

3 years ago

Read 2 more answers

1. Suppose an online retailer has determined that if a potential customer spends more than 5 minutes on their site, that the pro

vredina [299]

Using the binomial distribution, it is found that there is a 0.056 = 5.6% probability that more than 7 will make a purchase.

<h3>What is the binomial distribution formula?</h3>

The formula is:

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

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

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:

There are 12 customers, hence n = 12.

The probability of any of them making a purchase is of p = 0.4.

The probability that more than 7 will make a purchase is given by:

P(X > 7) = P(X = 8) + P(X = 9) + P(X = 10) + P(X = 11) + P(X = 12).

Hence:

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

$P(X = 8) = C_{12,8}.(0.4)^{8}.(0.6)^{4} = 0.042$

$P(X = 9) = C_{12,9}.(0.4)^{9}.(0.6)^{3} = 0.012$

$P(X = 10) = C_{12,10}.(0.4)^{10}.(0.6)^{2} = 0.02$

$P(X = 11) = C_{12,11}.(0.4)^{11}.(0.6)^{1} \approx 0$

$P(X = 12) = C_{12,12}.(0.4)^{12}.(0.6)^{0} \approx 0$

Then:

P(X > 7) = P(X = 8) + P(X = 9) + P(X = 10) + P(X = 11) + P(X = 12) = 0.042 + 0.012 + 0.02 + 0 + 0 = 0.056.

0.056 = 5.6% probability that more than 7 will make a purchase.

More can be learned about the binomial distribution at brainly.com/question/24863377

3 0

2 years ago

2.436. Rounded to the nearest whole number

natita [175]

Answer:

Step-by-step explanation:

To round off to the nearest whole number, we look at the tenth place value (the first digit after the decimal point.)

If it is a 0-4, we round the entire number down. If it is 5-9, we round the entire number up.

In this case, the tenth digit is 4. 4 is from the category 0-4, so we round 2.436 down to 2.

3 0

3 years ago

Any girl here.........let's chàt​

Any girl here.........let's chàt