A line passes through the point (-6,-9) and has a slope of . Write an equation in slope-intercept form for this line.

Mathematics

1 answer:

garik1379 [7]3 years ago

4 0

Answer:

y = $\frac{5}{2}$ x + 6

Step-by-step explanation:

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Please Answer!!!! Im just Really dumb!!!!!! EASY POINTS!!!!!!!!

agasfer [191]

Answer: 13 degrees

Step-by-step explanation:

77+90+x=180

167+x=180

x=13

8 0

3 years ago

What does it mean if the x-coordinate in an ordered pair is zero? What if the y-coordinate is zero? Both? Explain.

Harman [31]

If the x-axis ordered pair is (0,0) and the y-axis ordered pair is (0,0), it is just where the lines intersect or also known as the origin. Both x and y can have a (0) in it.

for example let's say that you have an ordered pair on the X-axis of (5,0) and a ordered pair on the y-axis of (-3,0) it would look like that^^

or if it was just (0,0) it would be a dot in the middle

Don't know if it helped much, but there ya go

5 0

3 years ago

Of 1000 randomly selected cases of lung cancer, 823 resulted in death within 10 years.

Arada [10]

Answer:

a) $0.823 - 1.96\sqrt{\frac{0.823(1-0.823)}{1000}}=0.799$

$0.823 + 1.96\sqrt{\frac{0.823(1-0.823)}{1000}}=0.847$

The 95% confidence interval would be given by (0.799;0.847)

b) $n=\frac{0.823(1-0.823)}{(\frac{0.03}{1.96})^2}=621.79$

And rounded up we have that n=622

c) $n=\frac{0.5(1-0.5)}{(\frac{0.03}{1.96})^2}=1067.11$

And rounded up we have that n=1068

Step-by-step explanation:

Part a

$\hat p=\frac{823}{1000}=0.823$

In order to find the critical value we need to take in count that we are finding the interval for a proportion, so on this case we need to use the z distribution. Since our interval is at 95% of confidence, our significance level would be given by $\alpha=1-0.95=0.05$ and $\alpha/2 =0.025$ . And the critical value would be given by: