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
Leni [432]
1 year ago
11

Can i have help with this please

Mathematics
2 answers:
vredina [299]1 year ago
7 0

Answer: Heyaa! ~

Your Answer is... 7r²− r −1,  Which is B.

Step-by-step explanation:

Subtract the numbers, And then combine like terms,

Solution: 7r²− r −1

Hopefully this helps you! ^

Evgen [1.6K]1 year ago
3 0

Answer:

B) 7r² - r -1

Step-by-step explanation:

(3r² + 7r + 1) + (4r² - 8r - 2)

1. Remove unnecessary parentheses

3r² + 7r + 1 + 4r² - 8r - 2

2. Combine like terms (ex: r and -2r, n and 4n)

7r² - r -1

Therefore, the correct answer is B.

Hope this helps!

You might be interested in
BRAINLIEST! URGENT HELP!!!!!!
Vikki [24]
It's -5/2,-4 is right. ok?
4 0
3 years ago
Read 2 more answers
What is the value of k in the function ƒ(x) = 112 - kx if ƒ(-3) = 121?k = a0
nexus9112 [7]
F(x) = 112 - kx
f(-3) = 121

f(-3) = 112 - k(-3)
f(-3) = 112 + 3k
121 = 112 + 3k
121 - 112 = 3k
9 = 3k
9/3 = k
3 = k <===
5 0
2 years ago
Read 2 more answers
Find all numbers whose absolute value is 3 . If there is more than one, separate them with commas. If there are no such numbers,
adelina 88 [10]

Answer:

3, and -3

Step-by-step explanation:

Because absolute value is the distance away from zero, |3| and |-3| would both be 3 units away from 0. Be sure to have the negative on the inside if you're trying to make something positive, otherwise -|3| means that the absolute value of 3 would then become negative since the negative sign isn't a part of the absolute. hope this helps!

3 0
2 years ago
The sum of the first n consecutive even numbers can be found using S=n2+n, where n≥2. What is the value of n when the sum is 42?
lawyer [7]

Answer:

  • C. 6

Step-by-step explanation:

<u>Given</u>

  • S = n² + n
  • S = 42, n = ?

<u>Substitute and solve for n:</u>

  • 42 = n² + n
  • n² + 2*1/2n + 1/4 = 42.25
  • (n + 0.5)² = 42.25
  • n + 0.5 = √42.25
  • n + 0.5 = 6.5
  • n = 6

Correct option is C

5 0
2 years ago
Read 2 more answers
Pls answer..............
nexus9112 [7]

Answer:

b is correct

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
Other questions:
  • What is the arc measure of AD in degrees?
    9·1 answer
  • Concur Technologies Inc is a large expense-management company located in Redmond Washington. The wall street Journal asked Concu
    8·1 answer
  • Solve for this: 2x+4=3x+7
    6·2 answers
  • a window in the shape of a parrallelogram has a base of 36 inches and a height of 45 inches. what is the area of the window ​
    10·1 answer
  • I WILL MARK BRAINLIEST PLS ANSWER!!!
    7·1 answer
  • A lotion is made from an oil blend costing $1.50 per ounce and glycerin costing $1.00 per ounce. Four ounces of lotion costs $5.
    9·1 answer
  • A survey of 249 people asks about their favorite flavor of ice cream. The results of this survey, broken down by the age group o
    7·1 answer
  • Graph: <br> Y=X +3 squared -4
    7·1 answer
  • AJLK ~ APQR. Find the value of .<br> 22<br> 14<br> 7<br> 1<br> 8<br> K<br> 16<br> 20<br> 2=
    9·1 answer
  • What is the slope of (9,9) and (-11,13) ?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!