Math help!!!

Explain when is a rational expression restricted.

Answers

Answer 1

Answer: restricted values are when you get things that aren't allowed
the 2 main ones are

1.having a negative result under the squaer root sign

2. dividing by zero

example
√(x-3)=y
x cannot be any number less than 3

example the equation 3/x, 0 is a restricted value for x
3/(x+2), -2 is a restricted value for x

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Solve 3x2 + x + 10 = 0. Round solutions to the nearest hundredth.

Answers

$3 x^(2) + x + 10 = 0$
$x = \frac{-b(+or-) \sqrt{ b^(2) - 4ac } }{2a}$
$x = \frac{-1(+or-) \sqrt{ 1^(2) - 4(3)(10) } }{2(3)}$
: . x = \frac{-1 + \sqrt{-119} }{6} OR $x = (-1 - √(-119) )/(6)$

Thus the roots or the solutions to this equation are imaginary because the discriminant $√(-119)$ is negative and a negative number is undefined when rooted.

PLEASE HELP QUICK I WILL GIVE 67 POINTS!!!!! PLUS BRAINLIEST
SOLVE ALL OF IT :)

Answers

Step-by-step explanation:

Provided here is a photo.

The function C(x) = x 2 + 78 x + 29 models the cost, in hundreds of dollars, to produce x thousand pens. Find and interpret C(0), C(2) and C(4)

Answers

Answer:

Step-by-step explanation:

Given the function C(x) = x 2 + 78 x + 29 models the cost, in hundreds of dollars, to produce x thousand pens, we are to interpret C(0), C(2) and C(4).

For C(0), we are to substitute x = 0 into the given function;

C(0) = 0²+78(0)+29

C(0) = 0+0+29

C(0) = 29

Since the cost C(x) is in hundreds of dollars, C(0) = 2900

C(0) means that the cost of producing 0 thousand pen is $2,900

For C(2), we are to substitute x = 2 into the given function;

C(2) = 2²+78(2)+29

C(2) = 4+156+29

C(2) = 189

Since the cost C(x) is in hundreds of dollars, C(2) = 189*100 = $18900

C(2) means that the cost of producing 2 thousand pens is $18,900

For C(4), we are to substitute x = 4 into the given function;

C(4) = 4²+78(4)+29

C(4) = 16+312+29

C(4) = 357

Since the cost C(4) is in hundreds of dollars, C(4) = 357

C(4) means that the cost of producing 4 thousand pens is $35,700

Final answer:

C(x) = x^2 + 78x + 29 models the cost to produce x thousand pens. Calculating C(0), C(2), and C(4), we find that C(0) = 29, C(2) = 189, and C(4) = 357. These values represent the cost in hundreds of dollars for producing 0, 2, and 4 thousand pens, respectively.

Explanation:

To find and interpret C(0), C(2), and C(4), we substitute the given values of x into the function C(x).

1.For C(0), we substitute 0 into the function C(x):

C(0) = (0)^2 + 78(0) + 29
C(0) = 0 + 0 + 29
C(0) = 29
So, C(0) = 29 hundred dollars, meaning it costs $2900 to produce 0 thousand pens.
For C(2), we substitute 2 into the function C(x):
C(2) = (2)^2 + 78(2) + 29
C(2) = 4 + 156 + 29
C(2) = 189
So, C(2) = 189 hundred dollars, meaning it costs $18,900 to
produce
2 thousand pens.
For C(4), we substitute 4 into the function C(x):
C(4) = (4)^2 + 78(4) + 29
C(4) = 16 + 312 + 29
C(4) = 357
So, C(4) = 357 hundred dollars, meaning it costs $35,700 to produce 4 thousand pens.

Learn more about Cost Function here:

brainly.com/question/31952319

#SPJ3

A basketball player has already scored 56 points of the game the team record for points in a game is 72 which equation would allow you to find how many more points to play needs to tie the record

Answers

Answer:

The equation is:

$x+56=72$

Where x is the amount of points needed to tie the record

Step-by-step explanation:

In order to write the equation, we must have to understand the paragraph to find the known facts, the information that we want to find (unknown data) and the relation between them

Known facts:

Player scored points: 56
Team record points: 72

Unknown data:

How many more points the player needs to tie the record?

This unknown data is named as x (the variable to find)

In order to find the relation between known facts and unknown data, we analyze the paragraph:

According to the text, x is the amount of point that the player have to add to his current score (56) to tie the team record (72).

This analysis can be summarized in this sentence: "x plus 56 points must be equal to76 points"

Finally the equation is:

$x+56=72$

think this may be wrong but i think that it is 72-56=
the reason that i think its wrong is that you have nothing after the equils exept for the answer

Clarise evaluated this expression.(66.3 – 14.62) ÷ 0.6 – 0.22

(51.68) ÷ 0.6 – 0.22

(51.68) ÷ 0.42

51.68 ÷ 0.16

32.3

Which errors did Clarise make? Check all that apply.
1. She subtracted before evaluating the exponents.
2. She evaluated inside the parentheses first.
3. She divided before she subtracted.
4. She subtracted before she divided.
5. She divided incorrectly.

Answers

Answer:

the answer is 2,and 4 and 5

Answer:

Step-by-step explanation:

A,D,E

edgeeeeeeeeeeeee

What is larger 3/5 or 5/9

Answers

Hey there!

These are the stepsinvolved in answering this question:

1. Change $(3)/(5)$ and $(5)/(9)$ into decimals.
To do this, divide the numerator by the denominator. The numerator is the top part of the fraction, while the denominator is the bottom part of the fraction.

2. So, $(3)/(5)$ = 0.6
$(5)/(9)$ = 0.56

3. This concludes that $(3)/(5)$ is larger than $(5)/(9)$ since 0.6 is bigger than 0.56.

(If you feel that myanswer has helped you, please consider rating it and giving it a thank you!Also, feel free to choose the best answer, the brainliest answer!)

Thank you for beingpart of the brainly community! :D

the answer is most likely 5/9

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