3 years ago

Answer for these :)

Mathematics

1 answer:

spin [16.1K]3 years ago

3 0

Answer:

mAE

It's too short. Write at least 20 characters to explain it well.

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What is the sum of the given polynomials in standard form? (x2 – 3x) + (–2x2 + 5x – 3)

NISA [10]

-x2 + 2x - 3 is the final answer to that

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4 years ago

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For the real-valued functions, find the composition and specify its domain using interval notation.

Helen [10]

Answer:

Composition: $f(x)\,^o\,h(x)=4\,\sqrt{x+4} -1$

Domain = { $x\,/\,x\geq \,-4$ }

Step-by-step explanation:

Given

$f(x)=4\,x-1\,\,\, and \,\,\, h(x)=\sqrt{x+4}$

The requested composition becomes:

$f(x)\,^o\,h(x)=f(h(x))\\f(x)\,^o\,h(x)=f(\sqrt{x+4} )\\f(x)\,^o\,h(x)=4\,\sqrt{x+4} -1$

Then the Domain consists of all Real x-values for which the function is defined. In this case, the function is defined for all x-values for which the square root is defined, that is all x values for which:

$x+4\geq \,0$ (so the square root is defined in the Real number system)

This means $x\geq \,-4$

The Domain is then all the Real x-values such that $x\geq \,-4$

6 0

3 years ago

Olive buys indie music online. Each song costs $2 plus a $5 fee for using the artist's site. She has no more than $40 to spend.

mina [271]

First, set a variable.

Let x = the number of songs bought.

Each song costs 2 dollars. So, we have our first term: 2x.
And there is a fee of 5 dollars for using the website.

2x + 5

And she can't spend any more than 40 dollars. Which means she can spend 40 and under.

So, 2x + 5 ≤ 40 is the answer.

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3 years ago

PLEASE HELP. !!!!!! the 4th option is “A translation 2 units left and 1 unit up

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2 units left & 1 unit up

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3 years ago

Hillary made 12 cupcakes james made 10 times as many as hillary how many cupcakes did james make

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12
x 10
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120
it's pretty simply,sorry if I got it wrong,i'm kinda tired

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3 years ago

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