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2 years ago

What is the completely simplified form of the expression 2(1 – 3x) – (5x + 1)?

Mathematics

1 answer:

Nady [450]2 years ago

3 0

Answer:

i think it's 11x-1

Step-by-step explanation:

2(1-3x)-(5x+1)

2-6x-5x-1

2-11x-1

11x-1

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Show how to solve 2x+5=13, justify the steps

liberstina [14]

Answer:

The answer is 4

Step-by-step explanation:

2x + 5 = 13

Now, Subtract 5 from both side we get,

2x + 5 - 5 = 13 - 5

2x = 8

Then, Divide both side by 2 we get,

2x/2 = 8/2

x = 4

Thus, The answer is 4

-TheUnknownScientist 72

8 0

2 years ago

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A yearbook company was investigating whether there is a significant difference between two states in the percents of high school

Keith_Richards [23]

Answer: D. two-sample z-test for a difference in population proportions

Step-by-step explanation:

The options for the given questions were missing. The options are as follows:

A one-sample z-test for a sample proportion

B one-sample z-test for a population proportion

C two-sample z-test for a difference in sample proportions

D two-sample z-test for a difference in population proportions

Solution:

Sample proportions are used to estimate population proportions.

We are given the sample proportion of students from one state who ordered a yearbook = 70/150

We are also given the sample proportion of students from the other state who ordered a yearbook = 65/100

Since there are 2 samples and we want to investigate if there is a difference between 2 population of students,

Therefore, the most appropriate method for analyzing the results is

D. two-sample z-test for a difference in population proportions

8 0

3 years ago

Can you please help me olve theses

Mashcka [7]

<h3>Answer:</h3>

$f(x) = 0 \text{ when } x = \bold{1}$

$f(-7) =\bold{224}$

<h3>Step-by-step explanation:</h3>

Solving for the input, $\bold{x}$ , given the output:

Given:

$f(x) = 4x -4$

Solving for $x$ from the equation, $f(x) = 0$ :

$f(x) = 0 \\ 4x -4 = 0 \\ 4x = 4 \\ x = \frac{4}{4} \\ x = 1$

Solving for the output, $\bold{f(x)}$ , given the input.

Given:

$f(x) = 4x^2 -4x$

Solving $f(-7)$ :

$f(-7) = 4(-7)^2 -4(-7) \\ f(-7) = 4(49) -4(-7) \\ f(-7) = 196 +28 \\ f(-7) = 224$

7 0

3 years ago

12. A and B are supplementary. If m A = (6x + 15) and m B = 11 + x®, find

muminat

So the right answer is 147.

Look at the attached picture

Hope it will help you

Good luck on your assignment

5 0

3 years ago

Please help will give brainliest to first correct answer

klio [65]

Answer:

A (i think)

Step-by-step explanation:

A tiling or tessellation of a flat surface is the covering of a plane using one or more geometric shapes, called tiles, with no overlaps and no gaps. In mathematics, tessellations can be generalized to higher dimensions and a variety of geometries. A periodic tiling has a repeating pattern.

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3 years ago

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