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3 years ago

Is the point (1, -3) a solution to the system? Show all work 50 points

Mathematics

2 answers:

Genrish500 [490]3 years ago

5 0

Answer:

yes

Step-by-step explanation:

u dont need work for that it bascially givs u the answer

Agata [3.3K]3 years ago

3 0

Answer:

Yes there is no work needed i just did it

Step-by-step explanation:

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bekas [8.4K]

Answer:

yeah

Step-by-step explanation:

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the area of the square is 144 square meters. the length is 12 m

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2 years ago

What is the greatest whole number that rounds to 621860

Paha777 [63]

621,864
Since the 4 is a smaller digit than a 5, the 6 in the tens place would stay the same while the 4 would become a 0.

5 0

3 years ago

Read 2 more answers

Describe the process for graphing the equation y =-1/2x- 1

AysviL [449]

the formula is y=mx+b

m is the slope

b is the y-intercept form

so the -1 is the y-intercept form. so you need to start at that point on the y axis. then the slope which is -1/2 comes into play. in my school we use rise/run. so from the point you marked at -1 you will go down 1 and to the right 2 points then where you stop is your next point (mark it) keep doing that. also go up the other way from the -1 point. go up 1 and to the left 2. then connect all of your points with a line. I hope this helped.

please chose this answer as brainliest

4 0

3 years ago

Suppose that an internal report submitted to the managers at a bank in Boston showed that with 95 percent confidence, the propor

Dmitry [639]

Answer:

The sample size used to compute the 95% confidence interval is 1066.

Step-by-step explanation:

The (1 - α)% confidence interval for population proportion is:

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

The 95% confidence interval for proportion of the bank's customers who also have accounts at one or more other banks is (0.45, 0.51).

To compute the sample size used we first need to compute the sample proportion value.

The value of sample proportion is:

$\hat p=\frac{Upper\ limit+Lower\ limit}{2}=\frac{0.45+0.51}{2}=0.48$

Now compute the value of margin of error as follows:

$MOE=\frac{Upper\ limit-Lower\ limit}{2}=\frac{0.51-0.45}{2}=0.03$

The critical value of z for 95% confidence level is:

$z_{\alpha/2}=z_{0.05/2}=z_{0.025}=1.96$

Compute the value of sample size as follows:

$MOE=z_{\alpha/2}\sqrt{\frac{\hat p(1-\hat p)}{n}}\\0.03=1.96\times \sqrt{\frac{0.48(1-0.48)}{n}}\\(\frac{0.03}{1.96})^{2}=\frac{0.48(1-0.48)}{n}\\n=1065.404\\n\approx1066$

Thus, the sample size used to compute the 95% confidence interval is 1066.

4 0

2 years ago

A 1/2 gallon of milk costs 2.50.How much is milk per gallon?Figure that out any way you can.explain

Alex Ar [27]

Answer:

1 Gallon of milk = $5

Step-by-step explanation:

1/2 a gallon + 1/2 a gallon = 1 gallon

2.50 + 2.50 =$5

I hope i helped you :)

7 0

3 years ago