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3 years ago

What is the factors of 2x + 4

Mathematics

1 answer:

ra1l [238]3 years ago

3 0

Answer:

2(x+2)

Step-by-step explanation:

1) 2 : the greatest common factor

2) 2x+4

2x+4=2 ⋅ 2 : Separate out 2

Hope that helps

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∆ABC is reflected about the line y = -x to give ∆A'B'C' with vertices

Semenov [28]

Well you have to change the first number in ALL of the () so

(-1,1) = (1,1)

(-2,-1) = (2,-1)

(-1,0) = (1,0)

so your answer is d <span>(1, 1), B(2, -1), C(1, 0)</span>

7 0

3 years ago

Read 2 more answers

A square of side length s lies in a plane perpendicular to a line L. One vertex of the square lies on L. As this square moves a

user100 [1]

Answer:

Part (A) The required volume of the column is $s^2h$ .

Part (B) The volume be $s^2h=\frac{s^2h}{2}+\frac{s^2h}{2}$ .

Step-by-step explanation:

Consider the provided information.

It is given that the we have a square with side length "s" lies in a plane perpendicular to a line L.

Also One vertex of the square lies on L.

Part (A)

Suppose there is a square piece of a paper which is attached with a wire through one corner. As you blow it up it spins around on the wire.

This square moves a distance h along L, and generate a corkscrew-like column with square.

The cross section will remain the same.

So the cross section area of original column and the cross section area of twisted column at each point will be the same.

The volume of the column is the area of square times the height.

This can be written as:

$s^2h$

Hence, the required volume of the column is $s^2h$ .

Part (B) What will the volume be if the square turns twice instead of once?

If the square turns twice instead of once then the volume will remains the same but divide the volume into two equal part.

$s^2h=\frac{s^2h}{2}+\frac{s^2h}{2}$

Hence, the volume be $s^2h=\frac{s^2h}{2}+\frac{s^2h}{2}$ .

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3 years ago

Asim is going to cover the path with paving

leonid [27]

Answer: £210

Step-by-step explanation:

you do the cm they given you so if it’s 630cm x 120cm = 75,600

30cm x 30cm = 900cm

75,600 divided by 900 = 84

£2.50 x 84 = £210

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3 years ago

To see what parents in her neighborhood think about proposed changes to their local park, a parent walks through the neighborhoo

Anvisha [2.4K]

B. Convenience sampling

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3 years ago

Are exponential function one to one. How can you tell? What does this tell you about their inverses

aleksandrvk [35]

See in the explanation

<h2>Explanation:</h2>

<h3>1. Are exponential function one to one. How can you tell?</h3>

A function $f$ is one-to-one if each value of $x$ corresponds to exactly one value of $y$ .

To demonstrate this, we take the Horizontal Line Test that states:

<em>A function $f$ has an inverse function if and only if there is no any horizontal line that intersects the graph of $f$ at more than one point.</em>

As you can see in the first figure, the horizontal line $y=3$ (the green one) intersects the graph of the exponential function $y=e^x$ (the red one) in just one point. If you take every horizontal line $y=y_{0}$ with $y_{0}$ any real number, you will find that every line intersects the exponential function in just one point. Therefore, this function is one-to-one

<h3>2. What does this tell you about their inverses?</h3>

Another important thing is that:

A function has an inverse function if and only if is one-to-one.

As we have demonstrated that exponential functions are one-to-one by Horizontal Line Test, then we conclude exponential functions have inverse functions. The domain of the inverse function is the range of the original one and the range of the inverse function is the domain of the original one. The inverse of $y=e^x$ is $y=ln(x)$ whose graph is the second figure below.

<h2>Learn more: </h2>

How to find the inverse of a function? brainly.com/question/9980183

#LearnWithBrainly

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3 years ago