MATHEMATICS MIDDLE SCHOOL

Complete the square x^2+x+8x

Answers

Answer 1

Answer:

Answer:

$x^2+x+8x=(x+(9)/(2) )^2-(81)/(4)$

Step-by-step explanation:

The given expression is $x^2+x+8x$

To complete the square, we first simplify the function to get:

$x^2+9x$

Add and subtract the square of half the coefficient of x

$x^2+9x+((9)/(2) )^2-((9)/(2) )^2$

The first three term is a perfect square $(x+(9)/(2) )^2-(81)/(4)$

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Liliana and Marcus are playing a word game. Liliana spells a word incorrectly and loses 18 points. Then Marcus spells a word correctly and has the opposite score. Which is the correct way to represent “the opposite of Liliana’s score is equal to Marcus’s score”?

Answers

The correct way to represent “the opposite of Liliana’s score is + 18.

What are additive and multiplicative inverses?

A number's additive inverse is a number that is added to it until the result is zero.

A number multiplied by another such that the result is 1 is the multiplicative inverse of that number.

We know if 'a' is a number then the opposite of 'a' is '- a'.

Given, Liliana spells a word incorrectly and loses 18 points.

Looses 18 points is '- 18'.

Marcus spells a word correctly and has the opposite score which is + 18.

As opposite of - 18 is + 18.

learn more about additive and multiplicative inverses here :

brainly.com/question/13715269

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Im pretty sure its -(-18)= -18

its a different way to write plus 18 so yeah

Please help with homework

Answers

Ashley should get her seeds at garden place as she gets the exact amount of seeds and spends the least amount of money.
first of all I divided 75 by the amount of seeds you get it a packet. then if that was a decimal I rounded it to the larger number (eg. 7.15 rounded to 8)
then I multiplied the cost by that number to get the amount of money itd cost.
so I got in order of the boxes(s=seeds)
75s=$18
80s=$18.4
84s=$21.84
80s=$20
so the best deal is Garden place

10. RITE Math Draw and label examples ofall rectangular prisms built with 16 unit cubes.

Answers

Do a 1 by 16, 2 by 8, and a 4 by 4.
4 by 4 works because all squares are rectangles

Examples of exponents product rule

Answers

Hello There!

I attached an image below which explains everything and gives some examples.

The two figures are regular hexagons.

What is the scale factor, written in decimal form?

Answers

$(15)/(6) \n (5)/(2) =\n2.5$

$(15)/(6)=2.5$

Help last question for math
What is:
-3/8 divided by 7/12?

Answers

-3/8 divided by 7/12
-3/8 times 12/7 ( 7/12 is switched because it is changing from division to multiplication)
-3/8 times 12/7= -9/14
Hope this helped

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