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
Elodia [21]
3 years ago
14

Which equation is an identity?

Mathematics
2 answers:
OleMash [197]3 years ago
4 0
5w + 8 - w = 6w - 2(w - 4)

Hope this helps :)
sasho [114]3 years ago
3 0

Answer:

Option b - 5w + 8 - w = 6w - 2( w - 4)  

Step-by-step explanation:

To find : Which equation is an identity?    

Solution :

Option a - 11- (2v + 3) = -2v - 8          

If we open the parenthesis,

11- 2v -3 = -2v - 8    

-2v+8\neq -2v - 8    

No identity applied.

Option b - 5w + 8 - w = 6w - 2( w - 4)          

If we apply distributive property, a(b+c)=ab+ac

5w + 8 - w = 6w - 2w+8    

4w+8= 4w+8    

Distributive identity is applied.

Option c - 7m - 2 = 8m + 4 - m          

Solve by subtracting in RHS

7m - 2 \neq 7m + 4    

No identity applied.

Option d- 8y + 9 = 8y - 3          

This is not possible as 8y + 9 \neq 8y - 3

No identity applied.          

Therefore, Option b is correct.

You might be interested in
Calculate the maturity value for an interest-bearing note of $28,500 for 118 days at 8%
ValentinkaMS [17]
Hi I'm new so but what you have to do is add the money up than you should add it with the 118 days because i just did this quiz and i got an 100% all the way and plz put this the bralnl' yest
p.s your wolcome 
8 0
3 years ago
javier will paint the four outside walls of the birdhouse but not the bottom or the roof.What is the area that javier will paint
True [87]
Length x width of each wall, then add
6 0
2 years ago
The mean number of people per day visiting a museum in July was 160. If 20 more people each day visited the museum in August, wh
PIT_PIT [208]
Since the number of days in July and in August is the same, there is no need to work out on the total number per month.

The mean number of people per day in August = 160 + 20 = 180

Answer: 180
5 0
3 years ago
Read 2 more answers
5x(6x+28)=-23 <br><br>Help I don't understand
aksik [14]

Answer:

Solve the equation for  x  by finding  a,  b, and  c  of the quadratic then applying the quadratic formula.


Exact Form:


x  =  −  70  ±  √4210/30


Decimal Form:


x  =  −0.03


Step-by-step explanation:

5x(6x+28)=−23


Step 1: Simplify both sides of the equation.


30x2+140x=−23


Step 2: Subtract -23 from both sides.


30x2+140x−(−23)=−23−(−23)


30x2+140x+23=0


Step 3: Use quadratic formula with a=30, b=140, c=23.


x=−b±√b2−4ac/2a


x=−(140)±√(140)2−4(30)(23)/2(30)


x=−140±√16840/60


x=−7/3+1/30√4210 or x=−7/3+−1/30√4210

3 0
3 years ago
Read 2 more answers
Freshman Algebra help please anyone (just the answer no explanation)
Vikki [24]
The answer is D. The slope is 5 and (2, 4) is on the line.
8 0
3 years ago
Other questions:
  • How do you know that the decimal 2\11 repeats without end?
    8·1 answer
  • What number has the same value as 14 tens?
    13·1 answer
  • What is the total area of the figure?
    9·1 answer
  • What kind of shape has 23 mm,20 mm,13 mm
    6·2 answers
  • An item has a listed price of $90. If the sales tax rate is 8%
    9·1 answer
  • What is the measure of AC?<br> А. 299<br> В. 122<br> с. 58<br> D. 116°
    9·1 answer
  • Which graph represents y=⌈x⌉ over the domain 2≤x≤5?
    6·2 answers
  • Expand the expression: 1/3(12d + e)
    5·1 answer
  • Which equation can be used to find the nth term of the sequence, an?
    8·2 answers
  • Add −12 + 7.<br> options:<br><br> 19<br><br><br> −5<br><br><br> −19<br><br><br> 5
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!