3 years ago

5(x+3)−2x Which expression correctly combines the like terms? 3x+15 3x+3 3x2+15 3x2+3

Mathematics

1 answer:

arsen [322]3 years ago

5 0

3x+15 , this expression correctly combines the like terms

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The table below represents the distance of a train from its destination as a function of time: Time (hours) x Distance (miles) y

stiv31 [10]

A. y=-95x+665 y-intercept is 665
B. Ave rate of change is -95
C. y=0 so x=7 Domain is [0,7]

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2 years ago

Apply the distributive property to write an equivalent expression <br>4(2+w)

Alja [10]

Hi 4w+8 is the answer

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2 years ago

Which expressions are equivalent to the one below? Check all that apply.

dalvyx [7]

5^3(5^x) the rule is a^b(a^c)=a^(b+c)

5^(3+x)

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2 years ago

Can someone do this fast ? I need it for tomorrow

gregori [183]

Answer:

Step-by-step explanation:

hg(x) means you multiply h(x) times g(x) and then we will set it equal to $3x^2+x-1$ .

hg(x) = $x^2(x+2)$ which simplifies to

$x^3+2x^2$ . Now set that equal to $3x^2+x-1$ :

$x^3+2x^2=3x^2+x-1$ and get everything on the same side and factor:

$x^3-x^2-x+1=0$ . Factor by grouping:

$(x^3-x^2)-(x+1)=0$ and factor out what's common in each set of ( ):

$x^2(x-1)-1(x-1)=0$ which factors out to

$(x^2-1)(x-1)=0$ . But $x^2-1$ factors somoe to:

(x + 1)(x - 1)(x - 1) = 0 So the solutions for this are

x = -1, 1

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2 years ago

Here is the histogram of a data distribution.<br> What is the shape of this distribution?

Pavlova-9 [17]

Answer:

Unimodal-Skewed

Step-by-step explanation:

A distribution is called unimodal if it has only one hump in the histogram.

A symmetric distribution is equally divided on both sides of the highest hump.

The given histogram has only one hump at 4 and as it is not symmetrically distributed, it is skewed.

So the correct answer is:

Unimodal-Skewed ..

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2 years ago