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2 years ago

-2(x+2=x-3(x+1)-1 please help me

Mathematics

1 answer:

Tcecarenko [31]2 years ago

7 0

The solution would be x=0 because the statement is false.

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Read the picture that's were the question is.

vlabodo [156]

Answer:

X is your answer bc when coordinates are flipped over the x-axis the y coordinate goes negative

4 0

3 years ago

Write an equation in point-slope for, for the line through the given spot (4, -6); m = 3/5

oee [108]

The point-slope form:

$y-y_1=m(x-x_1)$

We have the point (4, -6) and the slope m = 3/5. Substitute:

$y-(-6)=\dfrac{3}{5}(x-4)\\\\\boxed{y+6=\dfrac{3}{5}(x-4)}$

3 0

3 years ago

Brainly admin please don't delete this i actually forgot what is 1x0 1x2 and 0x2

Serga [27]

first one is 0 second one is 2 and then the last one is 0

7 0

3 years ago

Read 2 more answers

g A researcher wants to construct a 95% confidence interval for the proportion of children aged 8-10 living in Atlanta who own a

Helga [31]

Answer:

The sample size needed is 2401.

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 level of $1-\alpha$ , 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 $1 - \frac{\alpha}{2}$ .

The margin of error of the interval is:

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

95% confidence level

So $\alpha = 0.05$ , z is the value of Z that has a pvalue of $1 - \frac{0.05}{2} = 0.975$ , so $Z = 1.96$ .

Estimate the sample size needed if no estimate of p is available so that the confidence interval will have a margin of error of 0.02.

We have to find n, for which M = 0.02.

There is no estimate of p available, so we use $\pi = 0.5$

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

$0.02 = 1.96\sqrt{\frac{0.5*0.5}{n}}$

$0.02\sqrt{n} = 1.96*0.5$

$\sqrt{n} = \frac{1.96*0.5}{0.02}$

$(\sqrt{n})^{2} = (\frac{1.96*0.5}{0.02})^{2}$

$n = 2401$

The sample size needed is 2401.

7 0

3 years ago

Read 2 more answers

In the figure below, BD and EC are diameters of circle P.

Zinaida [17]

Answer: 333 degrees

Step-by-step explanation:

8 0

3 years ago