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3 years ago

A. Circle

Mathematics

2 answers:

Shtirlitz [24]3 years ago

6 0

Answer:

it is option A bro

follow me if it is helpful

erma4kov [3.2K]3 years ago

5 0

I thin the answer is C tell me if it rong

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What is the value of z in the figure shown? 45.6 1148

kupik [55]

Answer:

Step-by-step explanation:

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3 years ago

X2 + 5x - 14 Select one of the factors of the quadratic expression.

vfiekz [6]

The equation factored would be (x+7)(x-2). As 7-2=5 and (7)(2)=14.

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3 years ago

a chicken needs cooking for 2 hours 20 min it needs to be cooked at 1pm what time do i need to start cooking

castortr0y [4]

So it cooks for 2 hrs and 20 minutes......and it has to be done by 1 pm.

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3 years ago

Read 2 more answers

What is u = kx + ух, for x

Ivahew [28]

Answer:

Step-by-step explanation:

u = kx + ух

First of all factorize x out at the right side of the equation

That's

u = x(k + y)

Divide both sides by ( k + y) to make x stand alone

That's

We have the final answer as

Hope this helps you

6 0

3 years ago

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