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3 years ago

Please answer! Worth 13 points

Mathematics

1 answer:

Arte-miy333 [17]3 years ago

8 0

Answer: f(x) = 3.50x + 25

It would cost $53 to go on 8 rides

Step-by-step explanation:

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Is -x+4y=-2 a direct variaition

Kruka [31]

No, because something extra is being added/divided and there are too many variables on one side

3 0

3 years ago

Okay how about this,

RideAnS [48]

Answer:

0.36

Step-by-step explanation:

4/11

If this helps please put brainliest

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3 years ago

Using the quadratic formula to solve x2 + 20 = 2x, what are the values of x?

jeka94

by Quadratic formula , $x^2 + 20 = 2x$ , values of x are $x = 1 \pm (1)i\sqrt{19}}$ . None of mentioned options are correct according to question!

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

Here we have , expression x2 + 20 = 2x or , $x^2 + 20 = 2x$ .

We know that Quadratic formula is :

$x = \frac{-b \pm \sqrt{b^{2}-4ac}}{2a}$

$x^2 + 20 = 2x$

⇒ $x^2-2x+20=0$

$a=1\\b=-2\\c=20$

Putting this value in equation $x = \frac{-b \pm \sqrt{b^{2}-4ac}}{2a}$ :

⇒ $x = \frac{-b \pm \sqrt{b^{2}-4ac}}{2a}$

⇒ $x = \frac{-(-2) \pm \sqrt{(-2)^{2}-4(1)(20)}}{2(1)}$

⇒ $x = \frac{2 \pm \sqrt{4-80}}{2}$

⇒ $x = (\frac{2 \pm 2i\sqrt{19}}{2})$

⇒ $x = 1 \pm (1)i\sqrt{19}}$

Therefore , by Quadratic formula , $x^2 + 20 = 2x$ , values of x are $x = 1 \pm (1)i\sqrt{19}}$ . None of mentioned options are correct according to question!

7 0

3 years ago

What is 2/10ths written as a decimal

ehidna [41]

Hey there! :D

2/10s= .2

The place after the decimal is the tenth so place. That fraction represents “two tenths”.

I hope this helps!
~kaikers

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3 years ago

In an experiment, the independent variable is _______ while the dependent variable is _______.

larisa86 [58]

An independent variable is the variable that can be changed whilst the dependant variable cannot be changed to keep a fair test ✅

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3 years ago