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
hram777 [196]
3 years ago
10

Lisa wrote the expression (3x + 6x) - 2(x + 1) + 5. She simplified the expression using the following steps:

Mathematics
2 answers:
sergeinik [125]3 years ago
7 0

Answer:

Step-by-step explanation:

Alright, lets get started.

The given expression is : (3x + 6x) - 2(x + 1) + 5

In very first step,  Lisa made a mistake.

Lisa took 3 as common factor out and what she wrote is 3 (1+x) but when she took 3 as common factor, the expression would be 3 (x+2x)

Here she made a mistake.

3(x+2x)-2(x+1)+5

9x-2(x+1)+5

9x-2x-2+5

7x+3

So, the correct answer is 7x+3  :   Answer

Hope it willhelp :)

Ivanshal [37]3 years ago
6 0

Answer:

Step 1. Should be 3(x +2x) -2(x +1) +5 . . .

or . . . 3x(1 +2) -2(x +1) +5 . . .

or . . . 9x -2(x+1) +5

Step-by-step explanation:

Lisa apparently failed to realize that both terms inside the first set of parentheses have 3x as a factor. They are like terms, so could be combined directly. If Lisa really wants to factor out 3 or 3x, she could do so and then combine the remaining factors at another step.

You might be interested in
Use the Distributive Property to rewrite
Stella [2.4K]

Answer:

c

Step-by-step explanation:

6 0
2 years ago
Does anyone know what the answer is
Natali5045456 [20]

Answer:

cheating in entrance

Step-by-step explanation:

circumference: 14π

area: 49π

8 0
3 years ago
Read 2 more answers
Area of the shaded segment=
garik1379 [7]

The area of the entire sector is (\pi)(6^{2}) \left(\frac{60}{360} \right)=6\pi

The area of the triangle OAB is \frac{\sqrt{3}}{4}(6^{2})=9\sqrt{3}.

So, the area of the segment is \boxed{6\pi-9\sqrt{3}}

5 0
2 years ago
Solve the equation x^3+2x^2-5x-6=0
Bezzdna [24]
Solution is X=-1 , 2, -3
5 0
3 years ago
Please help with this rectangle figure
bija089 [108]

Answer:

15.53 sq inches, 15.71 inches

Step-by-step explanation:

(3 * 4) + (1.5^2 * pi)/2 = 12 + 3.53 = 15.53 sq inches

3 + 4 + 4 + (2pi * 1.5)/2 = 15.71 inches

3 0
2 years ago
Other questions:
  • Shannon is selling boxes cookies and candy for a fundraiser. She's sold each box of cookies for $5.25. She also sold one one box
    9·1 answer
  • If six pounds of grapefruit is 3 how much is 3 pounds
    5·2 answers
  • 4/5 m, if m = 10<br> HURRY!!
    14·1 answer
  • The square of a positive number decreased by twice the number is 48. Find the number
    6·2 answers
  • Find 2 and 2/3 x 1 and 1/4
    14·1 answer
  • Help me pleaseeeee :(
    9·1 answer
  • What race/ethnicity r u
    9·2 answers
  • Help Plz No Bots ASAP FOR TEST!
    6·1 answer
  • I need help with these 2 problems I cant figure out.
    9·1 answer
  • Which of the following is the graph of y= e^x + 1?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!