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aivan3 [116]
3 years ago
6

The equation of line AB is (y-3)= 5(x-4). What is the slope of a line perpendicular to line AB?

Mathematics
1 answer:
Tcecarenko [31]3 years ago
4 0
*Hint: When the slope of a line is perpendicular, it would have the negative reciprocal.

First, let's simplify this equation into y = mx + b format.

y - 3 = 5(x - 4)
y - 3 = 5x - 20
y = 5x - 17

Since 5 is the slope of this equation, the negative reciprocal would be -1/5.

Answer: -1/5
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The number of students in Mr. Boggs’s homeroom is equal to b. Add the total number of students in each class and set it equal to 90.

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Use the Distributive Property, and collect like terms. 90 = b + 1.5b + 3 + 15 + 2b – 9

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The owner of a football team claims that the average attendance at games is over 523, and he is therefore justified in moving th
USPshnik [31]

Answer:

C) There is not sufficient evidence to support the claim that the mean attendance is greater than 523.

Step-by-step explanation:

Let μ be the the average attendance at games of the football team

The claim: the average attendance at games is over 523

Null and alternative hypotheses are:

  • H_{0}: μ=523
  • H_{a}: μ>523

The conclusion is failure to reject the null hypothesis.

This means that <em>test statistic</em> is lower than <em>critical value</em>.  Therefore it is not significant, there is no significant evidence to accept the <em>alternative</em> hypothesis.

That is no significant evidence that the average attendance at games of the football team is greater than 523.

7 0
3 years ago
John took a 5 ½ mile walk to his friend’s house. He left at 11 a.m. and arrived at his friend’s house at 1 p.m. What was John’s
olganol [36]

Answer:

5.5 miles over 2 hours--> 5.5/2= 2.75 miles per hour was his average walking speed. 5.5 miles over 2.5 hours --> 5.5/2.5= 2.2 miles per hour on the return trip meaning that his average speed was (2.75-2.2= 0.55) 0.55 miles per hour lower on the return trip

Step-by-step explanation:

I hope this helps you :)

<em><u>-KeairaDickson</u></em>

7 0
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