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
kow [346]
2 years ago
11

Expressions equivalent to 3a+9a+7b-bPLS HELP DUE TONIGHT

Mathematics
2 answers:
miskamm [114]2 years ago
7 0

Answer:

12a + 6b

Step-by-step explanation:

Combine like terms

12a+7b-b

Combine like terms

12a+6b

Hence, 12a+6b = 3a+9a+7b-b

[RevyBreeze]

Vlad1618 [11]2 years ago
7 0
ANSWER: ⇒ 12a + 6b

Simplify or expand:

3a + 9a + 7b - b

Reorder and gather like terms:

(3a + 9a) + (7b - b)

Collect coefficients of like terms:

(3 + 9) × a + (7 - 1) × b

Calculate the sum or difference:

12a + (7 - 1) × b

Calculate the sum or difference:

12a + 6b
You might be interested in
207,567 to the nearest hundred thousand
Nezavi [6.7K]
The hundred thousands place is the 2. Since the place below that is 0, it rounds down.
200,000
6 0
3 years ago
Read 2 more answers
What does 21÷3+(3×9)×9+5 equal? show work below plz
igor_vitrenko [27]
3x9=27
21/3 = 7
so
7+27x9+5
27x9=243
243+7+5
answer is 255
6 0
3 years ago
Read 2 more answers
Use vieta's theorem to solve the problems.
Mnenie [13.5K]

Using Vieta's Theorem, it is found that c = 72.

<h3>What is the Vieta Theorem?</h3>
  • Suppose we have a quadratic equation, in the following format:

y = ax^2 + bx + c

  • The roots are p and q.

The Theorem states that:

p + q = -\frac{b}{a}

pq = \frac{c}{a}

In this problem, the polynomial is:

x^2 - 17x + c

Hence the coefficients are a = 1, b = -17.

Since the difference of the solutions is 1, we have that:

p - q = 1

p = 1 + q

Then, from the first equation of the Theorem:

p + q = -\frac{b}{a}

1 + q + q = 17

2q = 16

q = 8

p = 1 + q = 9

Now, from the second equation:

pq = \frac{c}{a}

72 = c

c = 72

To learn more about Vieta's Theorem, you can take a look at brainly.com/question/23509978

6 0
2 years ago
PLEASE HELP WITH ALL!!!
Ad libitum [116K]

Answer:

3)x=-9

4)x=-2

5)x=-4

6)x=-5

7)x=-12

8)x=-11

Step-by-step explanation:

7 0
2 years ago
F(r) = 3.14r2. what is f(5)?
rjkz [21]

Answer:

f(5)= 78.5. I hope this helps!!

5 0
3 years ago
Other questions:
  • Find the volume of the solid obtained by rotating the region bounded by y = 8 x 2 , x = 1 , and y = 0 , about the x -axis.
    14·1 answer
  • Suppose a life insurance company sells a $240,000 one year term life insurance policy to a 25-year old female for $210. The prob
    8·1 answer
  • Machine A and machine B both make car parts. Machine A makes 7 parts every 10 minutes. Machine B makes 16 parts every 15 minutes
    7·1 answer
  • a cooler contains 50 bottles; 30 bottles of water, which 8 are lemon flavored and 20 bottles of tea, of which 5 are lemon flavor
    10·1 answer
  • Determine whether or not the distribution is a discrete probability distribution and select the reason why or why not.
    14·1 answer
  • In the diagram, △ABC≅△DEF. Find the values of x and y.
    6·1 answer
  • If liquid A has a density of 5g/ml and liquid B has a density of 3g/ml what will happen if you pour them into the same glass?
    11·2 answers
  • Sally has 14 diamonds and she puts 6 in the ground how many more diamonds does sally have?
    14·1 answer
  • The church youth group is selling snacks to raise money to attend their convention. Amy sold 2 pounds of candy, 3 boxes of cooki
    14·1 answer
  • A delivery company has a fleet of vans. The annual operating cost C (in dollars) per van is C = 0.37m + 2600, where m is the num
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!