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docker41 [41]
3 years ago
7

Simplify 5(x+3) -9x+4

Mathematics
2 answers:
Doss [256]3 years ago
8 0

- "-4x+19"

-- (Etc, ignore.) "Here are the basic steps to follow to simplify an algebraic expression:

-remove parentheses by multiplying factors.

-use exponent rules to remove parentheses in terms with exponents.

-combine like terms by adding coefficients.

-combine the constants."

laiz [17]3 years ago
5 0

Answer:

=5x+15-9x+4\\=-4x+19\\

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Which of the following fractions is larger in these fractions 1 1/4, 1/6, 1 1/24?
vodka [1.7K]

Answer:

11/6=1.83

1/6=0.167

11/24=0.4583

therefore the largest is 11/6

3 0
3 years ago
2x -3< -1 or -3x < -15
pogonyaev

Answer:

x<1 or x>5

Step-by-step explanation:

2x -3< -1 or -3x < -15

Solve them separately then put them back together

2x-3 < -1

Add 3 to each side

2x-3+3<-1+3

2x<2

Divide by 2

2x/2 <2/2

x<1

-3x < -15

Divide each side by -3, remembering to flip the inequality

-3x/3 > -15/-3

x>5

Put them back together

x<1 or x>5

4 0
3 years ago
population mean =72 and standard deviation =10, what is standard error of distribution of sample means for n=4 and n=25
mixer [17]

Answer:

<u>The standard error of distribution for n = 4 is 5 and for n = 25 is 2.</u>

Step-by-step explanation:

1. Let's review the information given to us for solving the question:

Population mean = 72

Standard deviation  =  10

Sample₁ = 4

Sample₂ = 25

2. For finding the standard error of the mean, we use the following formula:

Standard error = Standard deviation / √Size of the sample

Standard error for Sample₁ = 10/√4

<u>Standard error for Sample₁ = 10/2 = 5</u>

Now, let's find the standard error for Sample₂

Standard error for Sample₂ = 10/√25

<u>Standard error for Sample₂ = 10/5 = 2</u>

4 0
3 years ago
Use the distributive property to expand 0.05(50 + 40).
AURORKA [14]

Answer:

4.5

Step-by-step explanation:

Here's what I found on google about distributive property:

To “distribute” means to divide something or give a share or part of something. According to the distributive property, multiplying the sum of two or more addends by a number will give the same result as multiplying each addend individually by the number and then adding the products together.

Now for the math-

distribute the numbers-  0.05(50)+0.05(40)

solve-  0.05*50= 2.5

0.05*40= 2

2.5+2= 4.5

Hope this helps

6 0
3 years ago
Read 2 more answers
A machine in a factor makes 2o gidgets every 1/4 hour. How many gidgets are made every hour ?
Dahasolnce [82]

Answer:

lol

Step-by-step explanation:

lollololol

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6 0
3 years ago
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