2 years ago

Which of the following is NOT an inverse operation?

Mathematics

1 answer:

Black_prince [1.1K]2 years ago

4 0

2. Addition and multiplication

You might be interested in

In a survey of 200 employees, 65% agreed that the management of the cafeteria should be changed. If the confidence interval is 9

Kruka [31]

Answer:

c.136

Step-by-step explanation:

7 0

3 years ago

Let E be the event where the sum of two rolled dice is greater than or equal to 7. List the outcomes in Ec.

zhenek [66]

Answer:

(1, 1) (1, 2) (1, 3) (1,4)

(1,5) (2,1) (2,2) (2,3)

(2,4) (3,1) (3,2) (3,3)

(4,1) (4,2) (5,1)

Step-by-step explanation:

4 0

1 year ago

25. Ava found that 5 cars passed her house in 10 minutes. Which of the following is a unit rate per hour for this situation? A 1

Nata [24]

Answer:

B. 30 cars per hour

If 5 cars pass her house in 10 minutes then 30 cars will pass her house per hour

hope you got it xx

3 0

2 years ago

Read 2 more answers

The claim is that the proportion of adults who smoked a cigarette in the past week is less than 0.30, and the sample statistics

IrinaK [193]

Answer: 0.84

Step-by-step explanation:

let p be the population proportion of adults who smoked a cigarette in the past week.

As per given , we have

$H_a: p$

Sample size : n= 1491

The sample proportion of adults smoked a cigarette= $\hat{p}=\dfrac{x}{n}=\dfrac{462}{1491}=0.30985915493\approx0.31$

The test statistic for proportion is given by :-

$z=\dfrac{\hat{p}-p}{\sqrt{\dfrac{p(1-p)}{n}}}$

Substitute all the values , we get

$z=\dfrac{0.31-0.30}{\sqrt{\dfrac{0.30(1-0.30)}{1491}}}\\\\=\dfrac{0.01}{\sqrt{0.000141}}\\\\=\dfrac{0.01}{0.011874342087}=0.84261497731\approx0.84$

Hence, the value of the test statistic = 0.84

6 0

3 years ago

PLS HELP

joja [24]

Answer:

We would need pictures of the figures first :(

5 0

2 years ago