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kolbaska11 [484]

3 years ago

8

What is the domain and range of the function graphed below?

1 answer:

Ede4ka [16]3 years ago

5 0

-2,2 for both domain and range.

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Express the function graphed on the axes below as a piecewise function.

loris [4]

There is nothing below can u like it ill answer ut

8 0

3 years ago

A survey of an urban university showed that 750 of 1,100 students sampled attended a home football game during the season. Using

sattari [20]

Answer:

b. 0.6592 and 0.7044

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of $\pi$ , and a confidence interval $1-\alpha$ , we have the following confidence interval of proportions.

$\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}$

In which

z is the zscore that has a pvalue of $1 - \frac{\alpha}{2}$ .

For this problem, we have that:

A survey of an urban university showed that 750 of 1,100 students sampled attended a home football game during the season. This means that $n = 1100, p = \frac{750}{1100} = 0.6818$

90% confidence interval

So $\alpha = 0.1$ , z is the value of Z that has a pvalue of $1 - \frac{0.1}{2} = 0.95$ , so $Z = 1.645$ .

The lower limit of this interval is:

$\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.6818 - 1.645\sqrt{\frac{0.6818*0.3182}{1100}} = 0.6592$

The upper limit of this interval is:

$\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.6818 + 1.645\sqrt{\frac{0.6818*0.3182}{1100}} = 0.7044$

So the correct answer is:

b. 0.6592 and 0.7044

7 0

3 years ago

Read 2 more answers

A temperature recorded in Antarctica was -121Fahrenheit. The temperature recorded in the Sahara desert was 132 fahrenheit. How m

rodikova [14]

Answer: 253°F

Step-by-step explanation:

Given the following :

Temperature in Antarctica = - 121 Fahrenheit

Temperature in Sahara desert = 132 Fahrenheit

Number of degrees in which Sahara desert is warmer than Antarctica :

(temperature in Sahara desert - temperature in Antarctica)

= ( 132°F - (-121°F))

= (132°F + 121°F)

= 253°F

Sahara Desert is 253°F warmer

5 0

4 years ago

Let f(x)=x-2 and g(x)=x2-7x-9 find f(g(-1))

ira [324]

....................

3 0

4 years ago

Read 2 more answers

Johnny scored a total of 130 points in basketball this season. He scored 117 of those points in the regular season, and the rest

Dimas [21]

Answer:

90%

can u plz make me brainliest?

Step-by-step explanation:

$\frac{117}{130} = \frac{x}{100} \\\\Cross multiply \\ \\11700=130x\\\\Divide on both sides by 130\\\\x=90$

8 0

3 years ago