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3 years ago

Evaluate each expression using the variable replacements.

Mathematics

2 answers:

Alex Ar [27]3 years ago

5 0

Answer:

${n}^{2} - 3n + 8 \\ {4}^{2} - 3(4) + 8 \\ 16 - 12 + 8 \\ 4 + 8 \\ = 12$

Debora [2.8K]3 years ago

4 0

Answer:

Step-by-step explanation:

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* WILL GIVE BRAINLIEST FOR CORRECT ANSWER *

Kaylis [27]

Answer:

The complete graph of $f\left(x\right)=\left\{-2x:x\ge 3,\:y=-\frac{1}{3}x-5:x\le \:3\right\}$ is shown below.

Step-by-step explanation:

Considering the function

$f\left(x\right)=\left\{-2x:x\ge 3,\:y=-\frac{1}{3}x-5:x\le \:3\right\}$

The graph of the piece $y=-2x\ \ \ \ \ \left\{x\ge3\right\}$ indicates the blue line, starting at x=3. And with one unit increase in x, the value of y decreases by 2 units.

For example,

at x = 3

$y = -2x$

$= -2(3)$

$= 6$

and

at x = 4

$y = -2x$

$= -2(4)$

$= 8$

By comparing the slope intercept form

$y=mx+b$

Here,

The slope of which is m = -2,

and the piece $y=-\frac{1}{3}x-5\ \ \ \ \ \left\{x\le3\right\}$ indicates the yellow line.

By comparing the slope intercept form

$y=mx+b$

Here,

The slope of which is m = -1/3, and

y - intercept = -5.

The complete graph of $f\left(x\right)=\left\{-2x:x\ge 3,\:y=-\frac{1}{3}x-5:x\le \:3\right\}$ is shown below.

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4 years ago

Your family borrowed $400,000 from the bank to purchase a new home. If the bank charges 3.8%

Zolol [24]

Answer:

472.19

Step-by-step explanation:

$472.19 weekly

8 0

2 years ago

Which Graph Matches The Table?

Ulleksa [173]

Answer:

graph W

Step-by-step explanation:

6 0

3 years ago

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-4x+5y-3-11x-y<br><br> Does -3 have a like term?

-BARSIC- [3]

Answer:

nope ❎ ❎ ❎ ❎ ❎ ❎ ❎ ❎

5 0

3 years ago

Read 2 more answers

You purchase an item to sell in your store. The item costs you $6.45. You mark the item up 20%, but later run the item on sale a

baherus [9]

You mark it up 20% Price + 20% = p + 20/100p = p (1 + 0.20 ) = 1.2 p
6.45 * 1.2 = 7.74

You take off 5% which by the same reasoning (almost) means p/1.05
7.74 / 1.05 = 7.37

Now you need a sales tax
7.37 * 1.06 = 7.81 dollars.

Answer: The customer paid 7.81 <<<<=====

7 0

4 years ago