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3 years ago

The sum of one and the product of one and a number x

Mathematics

2 answers:

Annette [7]3 years ago

7 0

1 + 1x

1 + x

They mean the same thing! Hope this helps!

professor190 [17]3 years ago

4 0

Answer:

Dont look at mine idek why im here

Step-by-step explanation:

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Write the ratio as a fraction in simplest form. 32:42

maks197457 [2]

16/21 is your answer

You can take a 2 out of both numbers to get your answer

I hope this helped! :)

3 0

3 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

My question is 7/8*8/9

Tom [10]

7/8*8/9 = (7*8)/(8*9)
Since we have an 8 both above and below, we can erase it, and so the answer is 7/9

6 0

3 years ago

HELP I NEED HELP ASAP

Tpy6a [65]

Answer:

I think it's -14

Step-by-step explanation:

x = 0 so the x won't be included but

-2 • x = -2x

-12 • x = -12x

-2x + (-)12x = -14

hope this helps :)

7 0

2 years ago

It’s a math question, plz help

olga2289 [7]

The answer to your question is D

8 0

2 years ago