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iogann1982 [59]
2 years ago
8

What is the simplified expression for the expression below? -1(2x + 3) - 2(x - 1) O 4x+ O 4x - 2 o 4x + 2 0 4x -​

Mathematics
1 answer:
Korolek [52]2 years ago
8 0

Given:

The expression is:

-1(2x+3)-2(x-1)

To find:

The simplified form of the given expression.

Solution:

We have,

-1(2x+3)-2(x-1)

Using distributive property, we get

-1(2x+3)-2(x-1)=-1(2x)-1(3)-2(x)-2(-1)

-1(2x+3)-2(x-1)=-2x-3-2x+2

On combining like terms, we get

-1(2x+3)-2(x-1)=(-2x-2x)+(2-3)

-1(2x+3)-2(x-1)=-4x-1

Therefore, the simplified form of the given expression is -4x-1.

Note: The correct option is not available.

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A patient is to take 4 2/3 tablespoons of medicine per day in 4 equally divided doses. How much medicine is to be taken in each
anygoal [31]

Answer:

1 1/6

Step-by-step explanation:

4 2/3 ÷ 4

Convert the mixed number into an improper fraction:

4 2/3 = 14/3

14/3 ÷ 4

14/3 ÷ 4/1

Use cdf (copy dot flip)

14/3 × 1/4

14 × 1 / 3 × 4

14/12

Convert improper fraction into a mixed number:

14/12 = 1 2/12

1 1/6

6 0
3 years ago
Let fat be the explanatory variable and calories be the response variable; which scenario best describes ŷ = 121 + 1.42x?
emmasim [6.3K]

Using <u>linear function concepts</u>, it is found that the correct option is:

The amount of calories in a cheeseburger increases by 1.42 for every one gram of fat. The calorie amount estimated by this model is 121 if there are zero grams of fat.

A linear function is modeled by:

y = mx + b

In which:

  • m is the slope, which represents by how much y changes when x changes by 1.
  • b is the y-intercept, which is the value of y when x = 0.

In this problem:

  • The explanatory variable fat is the input.
  • The response variable calories is the output.

The equation is:

y = 121 + 1.42x

  • The slope is of 1.42, which means that the amount of calories increases by 1.42 when the amount of fat increases by 1 gram.
  • The y-intercept is of 121, which means that if there are 0 grams of fat, there will be 121 calories.

Thus, the correct option is:

The amount of calories in a cheeseburger increases by 1.42 for every one gram of fat. The calorie amount estimated by this model is 121 if there are zero grams of fat.

A similar problem is given at brainly.com/question/16302622

8 0
2 years ago
Is 65 and 66 numbers
svlad2 [7]

Answer: yes?

Step-by-step explanation:

6 0
2 years ago
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sasho [114]
Check the picture below.

8 0
3 years ago
Which simplifications of the powers of i are correct? There is more than one correct answer.
IrinaVladis [17]
The first four equations are correct. The remaining 4 equations are incorrect. See the attached screenshot for a detailed breakdown of why the last four equations are incorrect. 

6 0
2 years ago
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