PLZ HELP ME!!!!!!!!!!!!!!!!!!

Mathematics

1 answer:

Art [367]2 years ago

8 0

A)The outlier if the data is 28 because it is 30+ numbers away from the next number. B) The mean for this data is 67.45. C) it would be 71.4 without the outlier. P.S to find the mean you add all the numbers together and then divide it by however many numbers there are. Hope this helps

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Which expressions are equivalent to 3x+3(x+y)3x+3(x+y)3, x, plus, 3, left parenthesis, x, plus, y, right parenthesis ? Choose al

wariber [46]

Answer: Choise A and Choise B.

Step-by-step explanation:

Given the following expression:

$3x+3(x+y)$

You can simplify it in order to find equivalent expressions.

Appying the Distributive Property, you get:

$3x+(3)(x)+(y)(3)=3x+3x+3y$

So:

1. If you add the like terms, you get this equivalent expression:

$3x+3x+3y=6x+3y$

2. But if you factor out 3, you get the following equivalent expression:

$3x+3x+3y=3(x+x+y)$

Therefore, the expression shown in Choice A and Choise B are equivalents to the expression $3x+3(x+y)$

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2 years ago

Read 2 more answers

Which set of ordered pairs is not a functions?

Anit [1.1K]

Answer:

Step-by-step explanation:

X values cannot repeat in a function, 3 is used as an X value twice in A, and therefore cannot be a function.

If this is graphed, you can use the vertical line test, if a vertical line on any point goes through other points, it is not a function.

In this case, just check if X repeats.

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2 years ago

2. An exam readiness awareness taskforce at a Fremont National university sampled 200 students after the midterm to ask them whe

k0ka [10]

Answer:

c) (40+60+25)/200 or 63%

Step-by-step explanation:

n= 200 students

Did Well on the Midterm and Studied for the Midterm = 75

Did Well on the Midterm and Went Partying = 40

Did Poorly on the Midterm and Studied for the Midterm = 25

Did Poorly on the Midterm and Went Partying = 60

The number of students that did poorly on the midterm or went partying the weekend before the midterm is given by the sum of all students who did poorly to all students who went partying minus the number of students who did Poorly on the Midterm and Went Partying:

$N=(25+60)+(40+60) - 60\\N= 125$