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4 years ago

Billy left home at 9

Mathematics

1 answer:

Molodets [167]4 years ago

5 0

I think its 36

Hope this helps sorry if im wrong

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What is the definition of triangle

Sholpan [36]

Answer:

rtshsrst6hteshyrjhryjy

Step-by-step explanation:

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3 0

3 years ago

Read 2 more answers

The 2004 presidential election exit polls from the critical state of Ohio provided the following results. There were 2020 respon

lord [1]

Answer: a) $0.490\leq p\leq0.582$

b) $0.501\leq p$

Step-by-step explanation:

Given : Sample size of respondents in the exit polls : n= 2020

Number of respondents voted for George Bush = 412

Sample proportion: $\hat{p}=\dfrac{412}{768}\approx0.536$

a) Critical value for 99% confidence level : $z_{\alpha/2}=2.576$

Confidence interval for proportion:-

$\hat{p}\pm z_{\alpha/2}\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}$

$=0.536\pm (2.576)\sqrt{\dfrac{0.536(1-0.536)}{768}}\\\\=0.536\pm0.046\\\\=(0.490,\ 0.582)$

Hence, the 99% confidence interval for the proportion of college graduates in Ohio that voted for George Bush: $0.490\leq p\leq0.582$

b) Critical value for 95% confidence level : $z_{\alpha/2}=1.96$

Lower confidence bound for the proportion :

$\hat{p}- z_{\alpha/2}\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}\\\\=0.536-(1.96)\sqrt{\dfrac{0.536(1-0.536)}{768}}\\\\=0.536-0.035=0.501$

Hence, a 95% lower confidence bound for the proportion of college graduates in Ohio that voted for George Bush : $0.501\leq p$

7 0

3 years ago

Read 2 more answers

What is the value of f(–1)?

Kryger [21]

Personally，you may need to declassify the form of details of function f,

6 0

3 years ago

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Which of the following sets represents the range of the function shown? {(–3, 4), (5, 11), (9, –1), (10, 13)}

Oksanka [162]

$\{(-3;\ \fbox4);\ (5;\ \fbox{11});\ (9;\fbox{-1});\ (10;\ \fbox{13})\}\\\\the\ range:\{4;\ 11;-1;\ 13\}\\\\Your\ answer:\huge\boxed{b:\{-1;\ 4;\ 11;\ 13\}}$

8 0

3 years ago

Evaluate the function for the given value.<br> If f(x) = -3x2 – 8, then f(-4)= ?

Ganezh [65]

Answer:

The answer is

Step-by-step explanation:

$f(x) = - 3 {x}^{2} - 8 \\$

To find f(-4) , substitute the value of x that's - 4 into f(x). That is for every x in f(x) , replace it with - 4

We have

$f( - 4) = - 3 ({ - 4})^{2} - 8 \\ = - 3(16) - 8 \\ = - 48 - 8 \: \: \: \: \:$

We have the final answer as

$f( - 4) = - 56$

Hope this helps you

4 0

3 years ago