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2 years ago

Find the sum or difference.

Mathematics

1 answer:

Strike441 [17]2 years ago

7 0

Answer:

3y + 5

General Formulas and Concepts:

Pre-Algebra

Distributive Property

Algebra I

Combining Like Terms

Step-by-step explanation:

Step 1: Define expression

(4y + 3) - (y - 2)

Step 2: Simplify

Distribute negative: 4y + 3 - y + 2
Combine like terms (y): 3y + 3 + 2
Combine like terms (Z): 3y + 5

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Simplify –2x3y × xy 2.

user100 [1]

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Used:

$a^n\cdot a^m=a^{n+m}$

Answer: C. –2x^4y^3

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2 years ago

Please due in an hour !!!

Masja [62]

The correct answer is c.

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2 years ago

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3(x+3)-5x simplify Answer

Lelu [443]

Answer: -2x + 9

First, Use the distributive property: 3(x+3)-5x (3 multiplied by x is 3x and 3 multiplied by 3 is 9

Next, subtract the variable x: 3x+9-5x (3x-5x=-2x

The answer is -2x+9

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2 years ago

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The midpoint of CD is M(-1,-2). One endpoint is C (-9,-4). Find the coordinates of the other endpoint D.

yan [13]

$\bf ~~~~~~~~~~~~\textit{middle point of 2 points }\\\\
\begin{array}{ccccccccc}
&&x_1&&y_1&&x_2&&y_2\\
% (a,b)
&C&(~ -9 &,& -4~) 
% (c,d)
&D&(~ x &,& y~)
\end{array}\qquad
% coordinates of midpoint 
\left(\cfrac{ x_2 + x_1}{2}\quad ,\quad \cfrac{ y_2 + y_1}{2} \right)
\\\\\\
\left( \cfrac{x-9}{2}~~,~~\cfrac{y-4}{2} \right)=\stackrel{midpoint~M}{(-1~~,~~-2)}\implies 
\begin{cases}
\cfrac{x-9}{2}=-1\\\\
x-9=-2\\
\boxed{x=7}\\
----------\\
\cfrac{y-4}{2}=-2\\\\
y-4=-4\\
\boxed{y=0}
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3 years ago

Following a dramatic drop of 500 points in the Dow Jones Industrial Average in September 1998, a poll conducted for the Associat

fredd [130]

Answer: a. statistic

Step-by-step explanation:

Population : It is a set of all possible observations that can be made regarding a study by the researcher.
Sample : It is finite subset of population that represents the population in the researcher's analysis.
Population parameter : It is a value that is calculated from the entire population such as population mean , population proportion etc.
Statistics : It is a value that is calculated from the sample taken out from population.

Since ,The group of people who took poll are representing the sample.

Therefore, 92% of those polled said that a year from now their family financial situation will be as good as it is today or better that means 92% describes a statistics.

Thus , the correct answer is a. statistic

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3 years ago