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3 years ago

4th time asking this will give brainliest for the first one to answer CORRECTLY (no blank answers either)

Mathematics

1 answer:

Bumek [7]3 years ago

3 0

Answer:

for free point

Step-by-step explanation:

for me plsssssss

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URGENT! WILL GIVE BRAINLIEST!!

IgorC [24]

Answer:

Option C) $a_{n}=m-b+m(n-1)$ for $n={\{1,2,3,...}\}$ is not the correct way to define the given infinite sequence

${\{m+b,2m+b,3m+b,4m+b,...}\}$

Step-by-step explanation:

Given infinite sequence is ${\{m+b,2m+b,3m+b,4m+b,...}\}$

Option B) $a_{n}=m-b+m(n-1)$ for $n={\{1,2,3,...}\}$ is not the correct way to define the given infinite sequence ${\{m+b,2m+b,3m+b,4m+b,...}\}$

Now verify $a_{n}=m-b+m(n-1)$ for $n={\{1,2,3,...}\}$ is true for the given infinite sequence

That is put n=1,2,3,.. in the above function

$a_{n}=m-b+m(n-1)$

When n=1, $a_{1}=m-b+m(1-1)$

$=m-b+0$

$a_{1}=m-b\neq m+b$

When n=2, $a_{2}=m-b+m(2-1)$

$=m-b+m$

$a_{2}=2m-b\neq 2m+b$

When n=3, $a_{3}=m-b+m(3-1)$

$=m-b+2m$

$a_{3}=3m-b\neq 3m+b$

and so on.

Therfore $a_{n}=m-b+m(n-1)$ for $n={\{1,2,3,...}\}$ is not the correct way to define the given infinite sequence

${\{m+b,2m+b,3m+b,4m+b,...}\}$

Therefore option C) is correct

5 0

4 years ago

B^2-4b-12=0 please help me

Olegator [25]

Answer:

Step-by-step explanation:

b² - 4b - 12 = b² - 6b + 2b - 2*6

=b*(b -6) + 2*(b - 6)

= (b - 6) (b + 2)

b² - 4b - 12 = 0

(b - 6) (b + 2) = 0

b - 6 = 0 or b + 2 = 0

b = 6 or b = -2

8 0

3 years ago

About 5% of hourly paid workers in a regioner the prevailing minimum wage or less A grocery chain offers discount rates to compa

Fed [463]

Answer:

Step-by-step explanation:

Let X to be a random variable that looks a binomial distribution which denoted the number of employees out of the 281 who earn the prevailing minimum wage or less

The sample size n = 281

The population parameter p = 5% = 0.05

Using normal approximation for the mean.

$\mu = np$

$\mu = 281\times 0.05$

$\mu = 14.05$

The standard deviation is:

$\sigma = \sqrt{np(1-p)}$

$\sigma = \sqrt{281 \times 0.05(1-0.05)}$

$\sigma = \sqrt{281 \times 0.05(0.95)}$

$\sigma = \sqrt{13.3475}$

$\sigma =3.6534$

By using continuity correction; the sample mean x is:

x = 30 - 0.5

x = 29.5

The z statistic test can now be as follows:

$Z = \dfrac{x-\mu}{\sigma}$

$Z = \dfrac{29.5-14.05}{3.6534}$

$Z = \dfrac{15.45}{3.6534}$

Z = 4.23

Thus, the probability that company A will get a discount is

P(X ≥ 30) = P(Z >4.23)

= 1 - P(Z < 4.23)

By using the Excel function for the z score 4.23 i.e. "=1 - NORMSDIST(4.23)" we get;

= 0.0000

7 0

3 years ago

Ollities

Gnesinka [82]

Answer:

Complete the sentences.

To find the z-score for the 56th percentile means that

the area above the z-score will be ✔ 0.44 and the

area below the z-score will be ✔ 0.56.

The z-score for the 56th percentile is ✔ 0.15

*you typed the question weird, but I hope this helps*

3 0

3 years ago

Read 2 more answers

Find the average rate of change for f(x) = x2 + 9x + 18 from x = -10 to x = 10.

Ratling [72]

With the way the equation is written, we can assume that the “x2” is x multiplied by 2.

The x2 and 9x are like terms, and can be simplified to 11x.

Our new equation is
f(x) = 11x + 18

With no exponential functions in the equation, the difference of each value’s output would be 11.

4 0

4 years ago