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3 years ago

Why is graphing not always the best option for solving systems?

Mathematics

2 answers:

katrin2010 [14]3 years ago

8 0

Graphing is only presented in 2D on a flat surface

xxTIMURxx [149]3 years ago

7 0

Because sometimes when graphing, you can miss parts of a fraction, such as if you had to graph (2.76,-8.65). You would be unsure as to how accurate someone could “guess” the value.

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If an item that costs $45 sold for a 15% discount, how much do you spend on it? Commission is a % of sales.

Stells [14]

Answer:

You pay $38.25 after the discount is applied

Step-by-step explanation:

First take 15% of 45 by multiplying 45 by 0.15 (which is 15% as a decimal)

0.15 * 45 = 6.75

Subtract 6.75 from $45 and then you get $38.25!

Hope this helps! Good luck on your courses!

8 0

3 years ago

All you need is in the photo <br>please help

rosijanka [135]

Answer:

Step-by-step explanation:

8 0

3 years ago

Write the decimal as a percent.<br> 0.487 = ??

pishuonlain [190]

Answer:

48.7%

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

Is 4.34433 rational or irrational

Whitepunk [10]

Answer:

That number is a rational number.

6 0

3 years ago

For what real values of $c$ is $x^2 - 8x + c$ the square of a binomial?

nikklg [1K]

Value of c is 16 for which equation $f(x) = x^2-8x+c$ is a square of binomial !

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

Here we meed to find the value of c for which equation f(x) = x^2-8x+c or , $f(x) = x^2-8x+c$ is a square of a binomial . Let's find out:

We know that

⇒ $(x-a)^2 = x^2-2(a)(x)+a^2$ ..........(1)

Let's simplify given equation in question

⇒ $f(x) = x^2-8x+c$

⇒ $f(x) = x^2-2(4)x+c$

Comparing this equation with (1) we get :

$a=4 , c=a^2$

⇒ $c=a^2$

⇒ $c=4^2$

⇒ $c=16$

Therefore , Value of c is 16 for which equation $f(x) = x^2-8x+c$ is a square of binomial !

5 0

3 years ago