1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
anzhelika [568]
3 years ago
15

Help Video Find the sum of 2x2 – 8x 6 and 9x2 – 8.

Mathematics
1 answer:
erik [133]3 years ago
7 0
Answer: 11x^2-8x-2

Explanation:

2x^2-8x+6
+9x^2+0x-8
——————-
11x^2-8x-2
You might be interested in
The​ ____ is another term for the arithmetic average.
antiseptic1488 [7]

The answer is the mean.

"For a data set, the arithmetic mean, also called the mathematical expectation or average, is the central value of a discrete set of numbers: specifically, the sum of the values divided by the number of values."- Wikipedia

3 0
3 years ago
The Thomas family went for a Sunday drive. Before they left, Mr. Thomas noticed the gas tank was ¾ full. When they returned home
JulijaS [17]

Answer:

7.5 gallons

Step-by-step explanation:

Given:

The Thomas family went for a Sunday drive.

Before they left, Mr. Thomas noticed the gas tank was ¾ full.

When they returned home the gas tank was ⅓ full.

Total capacity of the gas tank = 18 gallons

<u>Question asked:</u>

How many gallons of gas did the car use on the drive?

<u>Solu</u>tion:

Before they left, quantity of gas in the tank = \frac{3}{4} \times18=\frac{54}{4} =13.5\ gallons

When they returned, quantity of gas in the tank = \frac{1}{3} \times18=\frac{18}{3} =6\ gallons

Quantity of gas used on the drive = 13.5 - 6 = 7.5 gallons

Therefore, 7.5 gallons of gas used on the drive by Thomas family.

4 0
3 years ago
Lori buys a $1500 certificate of deposit (CD) that earns 6% interest that compounds monthly. How much will the CD be worth in:
Studentka2010 [4]

Answer:

$1500

6% interest

use the formula...

P(1+(r/100))^n

where P=initial amount

r=interest rate

t=time period elapsed

so ... for 5 years we get

$1500(1+(6/100))^5 = $1500(1.06)^5 = 2007.3383664

for 10 years

1500(1.06)^10 = 2686.271544814228043264

468 months = 39 years

1500(1.06)^39=14555.261231781943250017719606544

3 0
3 years ago
Read 2 more answers
Two race cars,car x an y,are at the starting point of a two km track at the same time.car x and car y make one lap every 60 s an
tino4ka555 [31]

Answer is attached.

Please check the image.

4 0
3 years ago
Each side of WRD is 3 inches long what id the measure of each angle in WRD
ira [324]

Answer:

60 degrees

Step-by-step explanation:

If each side of the triangle WRD is 3 inches long, then WRD is an equilateral triangle, meaning all angles are the same size. Since there are 180 degrees in a triangle, 180/3 = 60 degrees.

6 0
2 years ago
Other questions:
  • Which segment is skew to JK?<br> A. AB<br> C. JH<br> B. CD<br> D. GF
    13·1 answer
  • Please help with ratios of the area of triangles.....thank you
    15·1 answer
  • Will give brainliest to correct answer
    7·1 answer
  • Helpppp this very confusing
    5·1 answer
  • Hurry pleasee
    12·1 answer
  • There are 128 competitors in a tennis tournament. If Milo places in the 85th percentile, how many people
    7·1 answer
  • ASAP PLS HELP ME WITH THIS PLZZZ
    13·2 answers
  • In a poll last year, the residents of a town were asked to rate the mayor on a scale of -10 to 10 points. The mayor received an
    8·1 answer
  • Someone please help‍♀️
    7·1 answer
  • Find the value of x
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!