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2 years ago

What is the domain and range of quadratic function with vertex.

Mathematics

1 answer:

Alexus [3.1K]2 years ago

4 0

Answer:

As with any function, the domain of a quadratic function f(x) is the set of x -values for which the function is defined, and the range is the set of all the output values (values of f ). Quadratic functions generally have the whole real line as their domain: any x is a legitimate input. The vertex will be the minimum (lowest point) of the graph if and the maximum (highest point) of the graph if

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In a school, the ratio of boys to girls is 4:3. There are 216 boys. How many girls are there?

tankabanditka [31]

Answer:

162

Step-by-step explanation:

Divide 216 by 4

Then multiply 3 times

That's the answer

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3 years ago

How to change 3.3 into a fraction

Vesnalui [34]

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3 years ago

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(1 pt) In a study of red/green color blindness, 950 men and 2050 women are randomly selected and tested. Among the men, 89 have

Ivahew [28]

Answer: (0.066,0.116)

Step-by-step explanation:

The confidence interval for proportion is given by :-

$p_1-p_2\pm z_{\alpha/2}\sqrt{\dfrac{p_1(1-p_1)}{n_1}+\dfrac{p_2(1-p_2)}{n_2}}$

Given : The proportion of men have red/green color blindness = $p_1=\dfrac{89}{950}\approx0.094$

The proportion of women have red/green color blindness = $p_2=\dfrac{6}{2050}\approx0.003$

Significance level : $\alpha=1-0.99=0.01$

Critical value : $z_{\alpha/2}=z_{0.005}=\pm2.576$

Now, the 99% confidence interval for the difference between the color blindness rates of men and women will be:-

$(0.094-0.003)\pm (2.576)\sqrt{\dfrac{0.094(1-0.094)}{950}+\dfrac{0.003(1-0.003)}{2050}}\approx0.091\pm 0.025\\\\=(0.09-0.025,0.09+0.025)=(0.066,\ 0.116)$

Hence, the 99% confidence interval for the difference between the color blindness rates of men and women= (0.066,0.116)

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3 years ago

Please I really need help!! Also show the work please

Natasha_Volkova [10]

Answer:

3x +5+2x+44+110+123+136=360

5x+418=360

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5x=58

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3 years ago

On the first day of school each student is given $.50 to attend, on day two each student earns a dollar. On day three each stude

Bumek [7]

Answer:

128 dollars

Step-by-step explanation:

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3 years ago