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3 years ago

How do you graph (0,4) need help thank you!

Mathematics

2 answers:

ss7ja [257]3 years ago

7 0

Answer:

Just move 4 spaces up

Step-by-step explanation:

Fantom [35]3 years ago

4 0

Answer:

left 0 up 4

Step-by-step explanation:

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What is the solution of |2x| = –4?

DENIUS [597]

-2x=-4 or x=2
2x =-4 or x=-2

7 0

4 years ago

A random sample of 10 parking meters in a resort community showed the following incomes for a day. Assume the incomes are normal

GenaCL600 [577]

Answer:

A 95% confidence interval for the true mean is [$3.39, $6.01].

Step-by-step explanation:

We are given that a random sample of 10 parking meters in a resort community showed the following incomes for a day;

Incomes (X): $3.60, $4.50, $2.80, $6.30, $2.60, $5.20, $6.75, $4.25, $8.00, $3.00.

Firstly, the pivotal quantity for finding the confidence interval for the population mean is given by;

P.Q. = $\frac{\bar X-\mu}{\frac{s}{\sqrt{n} } }$ ~ $t_n_-_1$

where, $\bar X$ = sample mean income = $\frac{\sum X}{n}$ = $4.70

s = sample standard deviation = $\sqrt{\frac{\sum (X-\bar X)^{2} }{n-1} }$ = $1.83

n = sample of parking meters = 10

$\mu$ = population mean

Here for constructing a 95% confidence interval we have used a One-sample t-test statistics because we don't know about population standard deviation.

So, 95% confidence interval for the population mean, $\mu$ is ;

P(-2.262 < $t_9$ < 2.262) = 0.95 {As the critical value of t at 9 degrees of

freedom are -2.262 & 2.262 with P = 2.5%}

P(-2.262 < $\frac{\bar X-\mu}{\frac{s}{\sqrt{n} } }$ < 2.262) = 0.95

P( $-2.262 \times {\frac{s}{\sqrt{n} } }$ < ${\bar X-\mu$ < $2.262 \times {\frac{s}{\sqrt{n} } }$ ) = 0.95

P( $\bar X-2.262 \times {\frac{s}{\sqrt{n} } }$ < $\mu$ < $\bar X+2.262 \times {\frac{s}{\sqrt{n} } }$ ) = 0.95

95% confidence interval for $\mu$ = [ $\bar X-2.262 \times {\frac{s}{\sqrt{n} } }$ , $\bar X+2.262 \times {\frac{s}{\sqrt{n} } }$ ]

= [ $4.70-2.262 \times {\frac{1.83}{\sqrt{10} } }$ , $4.70+ 2.262 \times {\frac{1.83}{\sqrt{10} } }$ ]

= [$3.39, $6.01]

Therefore, a 95% confidence interval for the true mean is [$3.39, $6.01].

The interpretation of the above result is that we are 95% confident that the true mean will lie between incomes of $3.39 and $6.01.

Also, the margin of error = $2.262 \times {\frac{s}{\sqrt{n} } }$

= $2.262 \times {\frac{1.83}{\sqrt{10} } }$ = 1.31

4 0

3 years ago

Find the distance between the two numbers on a numbers on a number line -4.3 and 0.8

GenaCL600 [577]

Answer:

mbdvkjfb,s bvyuflkbheofuuiu bvgyoiufhgopyhp'rr=-guywghoijhuigy

ouyagwi;ljhiuasgpiuhwerguyehinja

Step-by-step explanation:

kguioulewnhiuwotijuhwtoihwuohobnjnwuihsng uwhgiwuhjegondbugoiuj;ogiwuerhtogiw ruiwerhgouspoi;wlusighwiojgipsjhgiusnlnuhsdjwgihgiuhwoeijioewu8oithijeioh[iwop[wh8htwoijt;lksskgdiuogye706

6 0

4 years ago

Find the values of x and y

const2013 [10]

Answer:

x = 79 y = 22

Step-by-step explanation:

x would be the same as the other side so 79 * 2 would be 158. A whole triangle is 180. 180 - 158 = 22

7 0

3 years ago

. 7/8 = /48 A. 6 B. 1 C. 13 D. 42

hodyreva [135]

7/8=x/48

x=(7/8)48
x=(7)(48/8)
x=(7)(6)
x=42
D.42

4 0

3 years ago