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3 years ago

(Only number one) !!PLEASE EXPLAIN HOW TO SOLVE DON’T JUST TELL ME THE ANSWER!!

Mathematics

1 answer:

Luba_88 [7]3 years ago

7 0

I'm guessing since you're given the x values plug it in the equation

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A train heads south out of Bloomington an hour after a northbound train

ahrayia [7]

9514 1404 393

Answer:

northbound: 2.5 hours
southbound: 1.5 hours

Step-by-step explanation:

When the second train leaves the station, the trains are already 63 miles apart. The rate of increase of their separation is (57 +63) = 120 miles per hour. The remaining 243-63 = 180 miles of separation will be achieved in ...

(180 mi)/(120 mi/h) = 1.5 h

The northbound train will have traveled 2.5 hours; the southbound train will have traveled 1.5 hours when the trains are 243 miles apart.

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3 years ago

Math: Slope help please

pishuonlain [190]

Slope = (2+5)/(-3-1) = 7/-4 = -7/4

answer is B -7/4

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3 years ago

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Variables, in statistics, refer to:

Kazeer [188]

The answer to this question is a

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2 years ago

Identify the vertex and axis of symmetry of the graph of g(x) = |x|- 8

Andrews [41]

The vertex is (0,-8)
im not sure about axis of symmetry but i don’t think it has one

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2 years ago

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Given the linear correlation coefficient r and the sample size n, determine the critical values of r and use your

Mila [183]

The critical value of r is mathematically given as r = +0.487, with no significant linear correlation. Option A.

<h3>What are the critical values of r?</h3>

Question Parameters

r = -0.868

n = 5

df = 5 - 2

df = 3

$\alpha / 2 =0.025$

Critical values $r= \pm 0.878$

Generally, there exists no linear correlation between the Critical values

as r=0.878

In conclusion, Critical values: r = +0.487, no significant linear correlation