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3 years ago

Find the difference (ab+4a-6)-(4ab+2)

Mathematics

2 answers:

irga5000 [103]3 years ago

7 0

Answer:

The difference would be -3ab + 4a - 8

Step-by-step explanation:

To find this, distribute the negative and then combine the like terms.

(ab+4a-6)-(4ab+2)

ab + 4a - 6 - 4ab - 2

-3ab + 4a - 8

Molodets [167]3 years ago

6 0

First, let's open up the parentheses:

ab+4a-6-4ab-2

(-4ab + ab) + 4a + (-6-2)

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What type of number is the square root of 5?

pshichka [43]

Answer:

That is called an 'irrational algebraic number'

Hope this helps!! :)

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3 years ago

There are 12300 films on Netflix. 7% of the films are action. How many films are action?

Kaylis [27]

Answer:

861

Step-by-step explanation:

7 percent *12300 =

(7:100)*12300 =

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7 0

3 years ago

Solve 3/4x = 7 28/ 3

Olegator [25]

3/4x=728/3

x=728/3×4/3

x=32.556

HOPE IT HELPS YOU OUT PLEASE MARK IT AS BRAINLIEST AND FOLLOW ME PROMISE YOU TO FOLLOW BACK ON BRAINLY.IN

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6 0

3 years ago

Drey makes $10 an hour plus $15 an hour for every hour of overtime. Overtime hours are any hours more than 40 hours for the week

alekssr [168]

Drey makes $10 an hour plus $15 an hour for every hour of overtime. Overtime hours are any hours more than 40 hours for the week.

Part A: Create an equation that shows the amount of wages earned, W, for working x hours in a week when there is no overtime.

If there is no overtime, the equation is W = 10x.

Part B: Create an equation that shows the amount of wages earned, S, for working y hours of overtime. Hint: Remember to include in the equation the amount earned from working 40 hours.

At $10 per hour for 40 hours, the total is $400.

S = 15y + 400

Part C: Drey earned $490 in 1 week. How many hours (regular plus overtime) did he work?

490 = 15y + 400

490 - 400 = 15y

90 = 15y

90/15 = y

6 = y

Drey worked 46 hours in all.

4 0

3 years ago

HELP ASAP! Use a calculator to find the r-value of these data. Round the value to three decimal places.

AleksandrR [38]

We know that
In statistics, the correlation coefficient r measures the strength and direction of a linear relationship between two variables on a scatterplot. The value of r is always between +1 and –1

using a excel tool
see the attached figure

<span>the r-value is -0.98534-------> -0.985
</span>
the answer is
-0.985

4 0

4 years ago