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
maxonik [38]
1 year ago
10

Perform the indicated operations(7n^2 - 6) - (6n^2 + 9) - (7n + 6)

Mathematics
1 answer:
DerKrebs [107]1 year ago
5 0

Answer:

n²-7n-21

Explanation:

Given the expression:

\mleft(7n^2-6\mright)-(6n^2+9)-(7n+6)

First, open the brackets:

=7n^2-6-6n^2-9-7n-6

Next, bring the like terms together and simplify:

\begin{gathered} =7n^2-6n^2-7n-6-9-6 \\ =n^2-7n-21 \end{gathered}

You might be interested in
How do you solve these 2 problems
ella [17]
11.The answer is -13
13.The answer is -108
5 0
3 years ago
At a local high school football game, twice the number of students attended as adults. If student tickets were $6.50, adult tick
lesantik [10]

Answer:

454

Step-by-step explanation:

set up a system of equation

let y be the number of students

let x be the number of adults

because there are twice the amount of students attended as adults, we can use y=2x as one equation

the other equation will be 6.5y+9x=4972 because this represents the total amount of money

plug 2x for y : 6.5(2x)+9x=4972 : x=226

plug 226 in for the first equation : y=2(226) : y=452

8 0
3 years ago
Why is the product of 9s diagonal?
Nadusha1986 [10]

Answer:

A. With each 9s fact you add another 9, which means you go straight down a row and back one space. This creates a diagonal pattern in the grid.

6 0
3 years ago
There are five identical blue books, two identical green books, and three identical black books. How many different patterns can
dsp73

Answer:

2520 patterns

Step-by-step explanation:

In 'n' 10!  ways, books can be arranged. But, there are also 5! permutation of blue books 'n1', 2! permutation of identical green books 'n2', and 3! permutation identical black books 'n3'.

Therefore, for non identical arrangements:

\frac{n!}{n1!n2!n3!}

\frac{10!}{5!2!3!} = 2520

Therefore, the books can be arranged on a shelf in 2520 patterns

8 0
3 years ago
Order the following values from least to greatest.<br> 25<br> -14<br> _-4<br> 21
Vikki [24]
-14
-4
21
25
Least to greatest.
7 0
3 years ago
Read 2 more answers
Other questions:
  • Please help me.
    11·1 answer
  • 7 plus -2 times 3 square
    6·1 answer
  • The formula for the area of a triangle is A= bh, where b is the base of the triangle and h is the height of the triangle. What i
    13·1 answer
  • How do you write the slope and the y-intercept of the line​
    12·1 answer
  • What is the value of the underline digit? 9.521
    5·2 answers
  • Y=9x is y a function of x
    9·1 answer
  • a football team lost 3 yards on there first play and 6 yards on there second play. how many total yards did they loose?
    14·1 answer
  • Does anyone know the answer to this
    5·1 answer
  • Can x = 2i be a "solution" for (x+3)^2 =5
    10·1 answer
  • A computer is normally $2788.43 but is discounted to $1023.99. What percent of the original price does Korey pay?​
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!