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
yanalaym [24]
3 years ago
11

can you help me evaluate this: 7m + 14m - 6n - 5n + 2m. why do you add 6n with 5n instead of subtract?

Mathematics
1 answer:
Mademuasel [1]3 years ago
6 0

Step-by-step explanation:

The reason is because it is not just 6 it is - 6 so when there are two negative numbers they don't subtract they add if it was 6n then it was to be subtracted

21m - 11n + 2m

23m - 11n

You might be interested in
Distributive property of multiplication 98 times 7
horsena [70]

Answer:

686

Step-by-step explanation:

6 0
3 years ago
If y = x2 + 2x , find the value of y when x = 5
Arturiano [62]

Answer:

Step-by-step explanation:

Okay so you are gonna substitute x for 5 so the equations will look like y= (5)2+(5)2

So 10+10 = 20

So y=20

8 0
3 years ago
What are the zeros of the quadratic function f(x) = 2x2 – 10x – 3?
Ipatiy [6.2K]

Answer:

x = \frac{ 5 \ + \ \sqrt{31}}{2} \ , \ x = \frac{ 5 \ - \ \sqrt{31}}{2}

Step-by-step explanation:

2x^2 - 10x - 3 = 0 \\\\a = 2 \ , b = - 10 \ , \ c =  - 3 \\\\x = \frac{-b^2\  \pm \ \sqrt{b^2 - 4ac}}{2a}\\\\x = \frac{10 \ \pm \sqrt{(-10)^2 - ( 4 \times 2 \times -3)} }{2 \times 2}\\\\x = \frac{10 \ \pm \sqrt{(100 - ( -24 )} }{4}\\\\x = \frac{10 \ \pm \sqrt{(100 + 24 } }{4}\\\\x = \frac{ 10 \ \pm \sqrt{124}}{4}\\\\x = \frac{ 10 \ \pm \sqrt{4 \times 31}}{4}\\\\x = \frac{ 10 \ \pm \sqrt{2^2 \times 31}}{4}\\\\x = \frac{ 10 \ \pm2 \sqrt{31}}{4}\\\\x = \frac{ 5 \ \pm\sqrt{31}}{2}\\\\

x = \frac{ 5 \ + \ \sqrt{31}}{2} \ , \ x = \frac{ 5 \ - \ \sqrt{31}}{2}

3 0
2 years ago
SOMEONE PLEASE JUST ANSWER THIS FOR BRAINLIEST!!’
ad-work [718]

Factoring this expression using the identity of a²-b² = (a+b)(a-b)

Given :-

25 - x²

<em>This can be broken down into:- </em>

... ( 5 )² - ( x )²

<em>In this case, a is 5 and b is x </em>

... ( 5 + x ) ( 5 - x ) Is the answer.

Hope it helps!!

7 0
3 years ago
Read 2 more answers
Did i draw my triangle right for question 8
Irina-Kira [14]

Answer:

I don’t think it wanted a triangle

Step-by-step explanation:

7 0
3 years ago
Other questions:
  • How many 3-digit numbers with all even digits.
    7·1 answer
  • 6. A pedestrian underpass is constructed using a cylindrical pipe of radius 2.6 m. The bottom of
    9·1 answer
  • Pam wants to lose some weight. She currently Weighs 225 lbs. if she loses 1.5 lbs per week, how many weeks will it take her to r
    7·1 answer
  • I'll give you brainliest
    14·2 answers
  • the dress store is having a sale where all merchandise is 1/4 off a women buy 48 of merchandise at the sale
    10·1 answer
  • Solve. Use a calculator as needed for evaluating formulas.
    9·1 answer
  • Select the correct answer.<br> Find the value of F(-3) for the function below.<br> fx) = 2x + 10
    14·2 answers
  • Yesterday, Grace drove 2 1/8 miles. she used 1 1/4
    5·2 answers
  • What is the hcm of 18 and 45
    12·1 answer
  • Marking as brainliest!!
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!