(-5x^2+2x+6)-(9x^2+2x+9)+(-6x^2+5x-3) simplified

Answer:

− 20 x ^2 + 5 x − 6

Step-by-step explanation:

Answer:

\(-20x^2+5x-6\\\)

Step-by-step explanation:

Start by removing the grouping symbols (parentheses) using the sign rules:

\((-5x^2+2x+6)-(9x^2+2x+9)+(-6x^2+5x-3)=\\=-5x^2+2x+6-9x^2-2x-9-6x^2+5x-3\)

Then we re-order and combine like terms:

\(-5x^2+2x+6-9x^2-2x-9-6x^2+5x-3=\\=-5x^2-9x^2-6x^2+2x-2x+5x+6-9-3=\\=-20x^2+5x-6\)

Sam rented a truck for one day. There was a base fee of $17.99, and there was an additional charge of 99 cents for each mile driven. Sam had to pay $162.53 when he returned the truck. For how many miles did he drive the truck?

HELP THIS IS DUE TMR

a triangle has a base 9cm and a perpendicular height 4.7 cm. work out the area of the triangle​

In which quadrant does the point (25 , 21) lie? A. Quadrant I B. Quadrant IV C. Quadrant III D. Quadrant II

Please help me ASAP and I will give brainiest.

Stefani slices a right rectangular pyramid with a plane and the cross-section is in the shape of a trapezoid. How does Stefani slice the pyramid?

Please HELP

If there are 27 lollipops and 54 candy bars for a gift bag, fill out all of the possible ratios of lollipops to candy bars that could be made.

Graph the following.
\(1.) \: y = \frac{3}{4} x \: - 2\)
\(2.) \: y = - \frac{3}{2} x \: + 3\)

with solution pls
​

can you guys help me out, asap please!!!

ANSWER PLEASE BEFORE 2/14!!!!

Tamara likes to go hiking and tries to hike for at least 30 minutes every week. On Tuesday, she hiked for 1 mile in the morning and 3 miles in the evening. On Thursday, she hiked with a friend for 4 miles. On Saturday she hiked for 5 miles. On Sunday, she hiked for 4 miles. She also hiked for an extra 10 minutes on Sunday night. If she hiked for a total of 350 minutes all week and it takes her the same amount of time to hike each mile, how many minutes does it take her to hike each mile?

only answer if you know the answer and if you understand it.

7. The same restaurant offers a coupon for $5.00 off a purchase of $10.00 or more or 15% off a purchase of any amount. Which row in the table below (A, B, or shows a correct expression that can be used to determine the cost of purchasing 8 hamburgers and 6 orders of fries using each coupon option?​

Joylin is writing an equation to model the proportional relationship between y, the total cost in dollars of downloading videos from a website, and x, the number of videos downloaded. She knows that the total cost to download 3 videos was $12. Her work to find the equation is shown below. Joylin’s Work Step 1 k = StartFraction 3 over 12 EndFraction = 0.25 Step 2 y = 0.25 x Where did Joylin make her first error Joylin divided 3 and 12 instead of multiplying the two numbers. Joylin computed the decimal equivalent of StartFraction 3 over 12 EndFraction incorrectly. Joylin used 0.25 as the coefficient of x instead of a product of x and y. Joylin switched the numerator and the denominator when she found k.

A bag contains 4 blue, 6 red, 5 green, and 3 orange marbles. What is the probability that a red or green marble will be randomly drawn.
Responses. please help

55%


6/18


61.1%


11/20

PLEASE HELP ASAP!!
\(\frac{3}{4}\) t = -9 what does t equal?

This is hard for me ;(

PLEASE ANSWER ALL QUESTIONS!!! I'LL GIVE 30 PTS TO WHOEVER ANSWERS!! Find the area of each shape. (sorry if it's hard to read)

Easy math question, earn points! Quickest answer gets points.

Please Help
I need an answer ASAP

535 divided by 30 with a remainder?

Express the following sums and summation notation.

pls help me, i need this for tomorrow

Could anyone help me with this problem, Quickly Please...

-10 x 2/5 A) -7 B)2/5 C)-2 OR D) -1/2

PLEASE. HELP ASAPPP!! WILL MARK BRAINLIEST
Triangle D has been dilated to create triangle D′. Use the image to answer the question.

Question 3 (5 points)
Match the number set or type of number with the correct category.

Column A
1.
Integer:
Integer
2.
{1/2, 1/4, 1/8, 1/16, 1/32}:
{1/2, 1/4, 1/8, 1/16, 1/32}
3.
Repeating decimals (0.454545...):
Repeating decimals (0.454545...)
4.
Non-Repeating decimal (.44454647....):
Non-Repeating decimal (.44454647....)
5.
Whole numbers {0, 1, 2, 3, 4, ....}:
Whole numbers {0, 1, 2, 3, 4, ....}

Column B
a. Rational ratio with a denominator of 1
b. Irrational decimal
c. Rational decimal
d. Rational whole numbers and their opposites
e. Rational (ratios)

A can of chicken stock measures 3.5 inches in diameter and 5 inches tall. What is the volume of the can? Use 3.14 for pi. Round your answer to the nearest hundredth.

38.50 in3

48.08 in3

92.46 in3

192.33 in3

Will Give Brainiest!!! Please Help!!

A scatter plot is shown on the coordinate plane.

scatter plot with points plotted at 1 comma 7, 1 comma 10, 2 comma 6, 3 comma 7, 3 comma 8, 5 comma 8, 6 comma 6, 7 comma 4, 9 comma 2, and 10 comma 1

Which two points would a line of fit go through to best fit the data?

A. (1, 10) and (6, 6)
B. (1, 7) and (2, 6)
C. (3, 7) and (7, 4)
D. (3, 8) and (6, 6)

Fill in the blank with the correct response.
If 3/4 = x/18 , then x is equal to

Yo can someone help me out

Can you guys help me with this ?I don’t understand it..Use the Mini lesson as your example.

Marley surveyed the students in 7th grade to determine which type of social media they most commonly used. The data that Marley obtained is given in the table.


Type of Social Media Headbook Picturegram Tweeter VidTok
Number of Students 85 240 125 50


Which of the following circle graphs correctly represents the data in the table?
Choice A: a circle graph titled social media usage, with four sections labeled headbook 17 percent, picturegram 48 percent, tweeter 25 percent, and vidtok 10 percent
ChoiceB: a circle graph titled social media usage, with four sections labeled vidtok 17 percent, headbook 48 percent, picturegram 25 percent, and tweeter 10 percent
Choice C: a circle graph titled social media usage, with four sections labeled tweeter 17 percent, vidtok 48 percent, headbook 25 percent, and picturegram 10 percent
ChoiceD: a circle graph titled social media usage, with four sections labeled picturegram 17 percent, tweeter 48 percent, vidtok 25 percent, and headbook 10 percent

Look at the picture for the question. Please help me only if you know!!