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3 years ago

11

Calculate the y -intercept by using the calculated slope and the ordered pair . (10.5,118.6)

1 answer:

love history [14]3 years ago

4 0

It’s b , because all you have to do is overlap the ordered pair

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Can someone help me...........

Natalija [7]

the correct answer is B to

7 0

3 years ago

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Why is tangent negative in the second quadrant?

Oksi-84 [34.3K]

The tangent function is the ratio of "opposite side" to "adjacent side." It so happens that the "adjacent side" is negative in Quadrants II and III, whereas the "opposite side" is positive. A positive quantity divided by a negative one produces a negative result; hence, the tangent function is negative in Quadrant II.

3 0

3 years ago

The U.S. Census Bureau announced that the median sales price in 2014 for new homes was $282,800 and the mean sales price was $34

victus00 [196]

Answer:

a) 0.9964

b) 0.3040

Step-by-step explanation:

Given data:

standard deviation = $90,000

Mean sales price =$345,800

sample mean = $370,000

Total number of sample = 100

calculate z score for [/tex](\bar x = 370000)[/tex]

$z = \frac{\bar x - \mu}{\frac{\sigma}{\sqrt{n}}}$

$z = \frac{370000 - 345800}{\frac{90000}{\sqrt{100}}}$

z = 2.689

P(x<370000) = P(Z<2.689)

FROM STANDARD NORMAL DISTRIBUTION TABLE FOR Z P(Z<2.689) = 0.9964

B)

calculate z score for (\bar x = 350000)

$z = \frac{\bar x - \mu}{\frac{\sigma}{\sqrt{n}}}$

$z = \frac{350000 - 345800}{\frac{90000}{\sqrt{100}}}$

z = 2.133

$P(350000 \leq \bar x \leq 365000) = P(0.467 \leq Z\leq 2.133) = P(Z\leq 2.133) - P(Z\leq 0.467)$

FROM NORMAL DISTRIBUTION TABLE Z VALUE FOR

$P(Z\leq 2.133) = 0.9836$

$P(Z\leq 0.467) = 0.6796$

SO, = 0.9836 - 0.6796 = 0.3040

4 0

4 years ago

What is the solution to the following system of equations?

Semmy [17]

Answer:

(3,2)

Step-by-step explanation:

The system is

x + y = 5

x -y = 1

Add the equations to eliminate y

2x = 6----->x=3

Substitute this value in any equation

3+y = 5----->y=2

The solution is (3,2)

3 0

4 years ago

Please help I’m tryna finish this

vesna_86 [32]

You answer would be D

4 0

3 years ago

Read 2 more answers