﻿ A line has a slope of - 4/5. Which ordered pairs could be points on a line that is perpendicular to this line? Check all that apply. a. (-2,0) and (2,5) b. (-4,5) and (4,-5) c. (-3,4) and (2,0) d. (1,-1) and (6,-5) e. (2,-1) and (10,9) - AssignmentGrade.com

# A line has a slope of - 4/5. Which ordered pairs could be points on a line that is perpendicular to this line? Check all that apply. a. (-2,0) and (2,5) b. (-4,5) and (4,-5) c. (-3,4) and (2,0) d. (1,-1) and (6,-5) e. (2,-1) and (10,9)

QUESTION POSTED AT 19/02/2020 - 01:33 PM

we know that

if two lines are perpendicular

then the product of their slopes is equal to minus one

so

in this problem we have

the value of m2 must be equal to

we know that

The formula to calculate the slope between two points is equal to

Find the slopes of each of ordered pairs and compare with m2

case a)

Substitute in the formula

The slope is equal to m2

so

The ordered pair case a)  could be points on a line that is perpendicular to the given  line

case b)

Substitute in the formula

The slope is not equal to m2

so

The ordered pair case b)  could not be points on a line that is perpendicular to the given  line

case c)

Substitute in the formula

The slope is not equal to m2

so

The ordered pair case c)  could not be points on a line that is perpendicular to the given  line

case d)

Substitute in the formula

The slope is not equal to m2

so

The ordered pair case d)  could not be points on a line that is perpendicular to the given  line

case e)

Substitute in the formula

The slope is equal to m2

so

The ordered pair case e)  could be points on a line that is perpendicular to the given  line

therefore

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ANSWERED AT 28/03/2020 - 01:00 PM

QUESTION POSTED AT 28/03/2020 - 01:00 PM

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QUESTION POSTED AT 28/03/2020 - 12:59 PM

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ANSWERED AT 28/03/2020 - 12:58 PM

QUESTION POSTED AT 28/03/2020 - 12:58 PM

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QUESTION POSTED AT 28/03/2020 - 12:58 PM

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ANSWERED AT 28/03/2020 - 12:57 PM

QUESTION POSTED AT 28/03/2020 - 12:57 PM

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AB =√[(x"-x')² + (y"-y')²]

Plug into the above with A(4,5) and B(-4,11).

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ANSWERED AT 28/03/2020 - 12:55 PM

QUESTION POSTED AT 28/03/2020 - 12:55 PM

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ANSWERED AT 28/03/2020 - 12:54 PM

QUESTION POSTED AT 28/03/2020 - 12:54 PM

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ANSWERED AT 28/03/2020 - 12:53 PM

QUESTION POSTED AT 28/03/2020 - 12:53 PM

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ANSWERED AT 28/03/2020 - 12:52 PM

QUESTION POSTED AT 28/03/2020 - 12:52 PM

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ANSWERED AT 28/03/2020 - 12:50 PM

QUESTION POSTED AT 28/03/2020 - 12:50 PM

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Step-by-step explanation:

ANSWERED AT 28/03/2020 - 12:48 PM

QUESTION POSTED AT 28/03/2020 - 12:48 PM

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ANSWERED AT 28/03/2020 - 12:48 PM

QUESTION POSTED AT 28/03/2020 - 12:48 PM

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B

Step-by-step explanation:

The 2 coins that have a combined value of 26 cents are a quarter and a penny. That means that 1 quarter and 1 penny must have already been removed from the bag. For this reason, the bag now contains 1 quarter, 5 dimes, 3 nickels, and 3 pennies. Therefore, the probability that a third coin randomly chosen from the bag will be a penny is

3

1 + 5 +3 + 3

=

3

12

=

1

4

.

ANSWERED AT 28/03/2020 - 12:47 PM

QUESTION POSTED AT 28/03/2020 - 12:47 PM

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correct option is:

613

Step-by-step explanation:

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40 people prefer vanilla (13 of day 1,12 of day 2 and 15 of day 3)

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out of 2300 :   prefer vanilla

≈  613

Hence, the correct option is:

613

ANSWERED AT 28/03/2020 - 12:47 PM

QUESTION POSTED AT 28/03/2020 - 12:47 PM

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ANSWERED AT 28/03/2020 - 12:47 PM

QUESTION POSTED AT 28/03/2020 - 12:47 PM

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ANSWERED AT 28/03/2020 - 12:42 PM

QUESTION POSTED AT 28/03/2020 - 12:42 PM

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QUESTION POSTED AT 28/03/2020 - 12:42 PM

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ANSWERED AT 28/03/2020 - 12:41 PM

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QUESTION POSTED AT 28/03/2020 - 12:38 PM

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QUESTION POSTED AT 28/03/2020 - 12:36 PM

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ANSWERED AT 28/03/2020 - 12:23 PM

QUESTION POSTED AT 28/03/2020 - 12:23 PM