MATHEMATICS MIDDLE SCHOOL

Which expression represents the cost of the mulch based on the radius of the circle?

Answers

Answer 1

Answer:

we have

$m(x)=\pi x^(2)-2√(2)x^(2)$ ---------> equation 1

$g(m)=1.50m$ ---------> equation 2

To represent the cost of the mulch based on the radius of the circle

Substitute equation 1 in equation 2

$g(x)=1.50*[\pi x^(2)-2√(2)x^(2)]$

therefore

the answer is the first option

$1.50*[\pi x^(2)-2√(2)x^(2)]$

Answer 2

Answer:

Answer:

Step-by-step explanation:

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PLZ HELP ME IM VERY CONFUSED! BRAINLIEST TO THE FISRT PERSON WITH WORK!Consider the following relation: {(1,12),(3,8),(3,11),(6,9),(7,11)}. Which ordered pair could be removed so that the relation is a function?

Answers

Answer:

(3,11) or (7,11)

Step-by-step explanation:

A function cannot have the same second number repeated ( forgot the term for the second number) so removing either (3,11) or (7,11) would leave it being a function

Answer:

im just gonna answer so that other dude can get the brainliest

Step-by-step explanation:

but hes right, you cant have the same number in the second spot

2X^2-5x+2=0
Quadratic formula

Answers

Answer:

The solutions are $x_(1)=2\ and\ x_(2)=0.5$ .

Step-by-step explanation:

Given:

$2x^(2) -5x+2=0$

Now, to solve by using quadratic formula:

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

Here $a=2,b=-5\ and\ c=2$

$x=\frac{-(-5)\pm \sqrt{(-5)^(2)-4* 2* 2}}{2* 2}$

Now, here we will take either $x=(-(-5)+√(25-16))/(4)$ and then $x=(-(-5)-√(25-16))/(4)$ .

$x=(-(-5)+√(25-16))/(4)$ $x=(-(-5)-√(25-16))/(4)$

$x=(5+√(9))/(4)$ $x=(5-√(9))/(4)$

$x=(5+3)/(4)$ $x=(5-3)/(4)$

$x=(8)/(4)$ $x=(2)/(4)$

$x_(1)=2$ $x_(2)=(1)/(2)=0.5$

Therefore, the solutions are $x_(1)=2\ and\ x_(2)=0.5$ .

How can you find a unit rate when given a rate?

Answers

A unit rate has a denominator of 1, and rate does not. For example, I ran 18 miles in 3 hours. That is a rate of 18 miles/3 hours (18 over 3). To make that a unit rate we have to make the denominator 1, so we divide the top and bottom by 3. The unit rate would be 6 miles/1 hour (6/1).

Expand 2x (5x-2) please help i’m confused

Answers

10x^2-4x is your answer! :)

Martha is covering kitchen shelves with shelving paper. She has 6 shelves that are each 1 3 4 feet long. She buys 13 1 4 feet of shelving paper of the correct width. Which equation can be used to determine how much paper she will have left over?

Answers

The equation to determine the amount of left over kitchen shelving paper is; L = 53/4 - (21/2)x.

What is the definition of the mixed fractions?

A mixed fraction is just a type of fraction that has both a whole number and a fractional part.
An improper fraction may also be formed from a mixed fraction.

For the given question;

Martha purchased 6 kitchen shelves with shelving paper.

The length of 6 shelves is 1 3/4 feet = 7/4 feet.

Thus, the total length of the 6 shelving papers is 6× 7/4 = 21/2 feet

The corrected width of the shelving paper is 13 1/4 = 53/4 feet.

The equation to defined the left over papers 'L'.

Let number of shelves be 'x'.

L = 53/4 - (21/2)x.

Thus, the equation to determine the amount of left over kitchen shelving paper is; L = 53/4 - (21/2)x.

To know more about the mixed fractions, here

brainly.com/question/28306054

#SPJ2

The correct question is-

Martha is covering kitchen shelves with shelving paper. She has 6 shelves that are each 1 3/4 feet long. She buys 13 1/4 feet of shelving paper of the correct width. Which equation can be used to determine how much paper she will have left over?

The correct expression is 13 1/4 − 6(1 3/4) = S. You take the total amount you have and subtract how much you need, 6 shelves each 1 3/4 feet long.

Hi really need these two in like, 5-10 minutes. Sorry to sound rude but it is an emergency!!!Thank you all in advance!!!

Answers

Coefficients = 3, 4, -7, and 9

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