All categories

3 years ago

Combine the like terms to create an equivalent expression. k + k A 2k B k C 3

Mathematics

1 answer:

PSYCHO15rus [73]3 years ago

5 0

Answer:

k+k=2k

Step-by-step explanation:

You might be interested in

What is 1 6/8 of 16

NARA [144]

Answer:

I'm pretty sure its 28?

Step-by-step explanation:

6 0

4 years ago

Read 2 more answers

A research company desires to know the mean consumption of meat per week among people over age 40. A sample of 610 people over a

Papessa [141]

Answer: $(3.0,\ 3.2)$

Step-by-step explanation:

Confidence interval for population mean is given by :-

$\overline{x}\pm z_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}$ (1)

, where $\overline{x}$ = Sample mean

$z_{\alpha/2}$ = Critical z-value

$\sigma$ = Population standard deviation.

n= Sample size.

As per given , we have

n= 610

$\sigma=1.1$

$\overline{x}=3.1$

Significance level for 85% confidence : $\alpha=1-0.85=0.15$

By z-table critical two tailed z-value : $z_{\alpha/2}=z_{0.075}=1.44$

Put all values in (1) , we get

$3.1\pm 1.44\dfrac{1.1}{\sqrt{610}}$

$3.1\pm 1.44\dfrac{1.1}{24.698}$

$3.1\pm 0.064$

$=(3.1-0.064,\ 3.1+0.064)=(3.036,\ 3.164)\approx(3.0,\ 3.2)$

Hence, the 85% confidence interval for the mean consumption of meat among people over age 40. = $(3.0,\ 3.2)$

5 0

4 years ago

Mr. Rogers recorded the height of 15 students from two of his classes. Based on these samples, what generalization can be made?

Sati [7]

You are not giving enough information but in one of the calsses the average of student's height might be greater than the other class beacause one of the two classes needs to have 1 extra person than the other calss

6 0

3 years ago

Exponentiation is the raising of one number to the power of another. This operation is performed using two asterisks **. Let's u

Harlamova29_29 [7]

In math, Exponentiation refers to the operation of raising one quantity to the power of another. See the program running the exponentiation below.

<h3>What is the required code?</h3>

The code is given below:

number_of_days = 30

amount_after_30days = 0.01 * (2 ** number_of_days)

# print the amount

print(amount_after_30days)

Learn more about exponentiation at;
brainly.com/question/11975096
#SPJ1

4 0

2 years ago

$7.825 per hour × $32.125 hours round answer to the thousandth of a dollar???

xenn [34]

Correct it is right u have to multipl

4 0

4 years ago