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
jeka57 [31]
3 years ago
10

If k(x)=2x2-3x, find k(9).

Mathematics
1 answer:
GrogVix [38]3 years ago
3 0
I think the answer is 297.

Explanation:

Replace every x in k(x) with 9

2(9)^2-3(9)
18^2-27
324-27
297
K(9)=297

Brainliest my answer if this helps you out?
You might be interested in
While walking in her neighborhood, Ashley found 3 dimes and 4 pennies on the ground. What percent of a dollar did Ashley find?
faltersainse [42]

Answer:

34%

Step-by-step explanation:

Dime = 10 cents, 10% of a dollar

Penny = 1 cent, 1% of a dollar

3 dimes = 30% of a dollar

4 pennies = 4% of a dollar

30% + 4% = 34%

3 0
3 years ago
Help me answer this but hurry please!
Andrew [12]

Answer:

165°

Step-by-step explanation:

4 0
3 years ago
Find the accumulated value of an investment of 12,000 at 8 % compounded semiannually for 11 years
AleksAgata [21]
The "compound amount" formula is A = P(1+r/n)^(nt),
where P=original investment, r=interest rate as a decimal fraction; n=number of compounding periods, and t=number of years.

Then A = $12000 * (1+0.08/2)^(2*11) 
             = $12000(1.04)^(22)  =  $28,439.03  (answer)
4 0
3 years ago
Hey I’m struggling with number 13 so please show your work. Thx
Dafna11 [192]

Answer:

\frac{5}{12}

Step-by-step explanation:

Because \frac{3}{5} is being multiplied by S, we can divide \frac{3}{5} from both sides of the equation. This will give us:

\frac{1}{4}÷\frac{3}{5}

But, that looks a bit hectic. Instead of dividing, you can multiply by the reciprocal (which is essentially how to divide fractions). So, instead of \frac{1}{4}÷\frac{3}{5}, you get:

\frac{1}{4}×\frac{5}{3}

When multiplying fractions, remember you can just multiply straight across-- numerator x numerator, then denominator x denominator.

By doing that, you get the fraction \frac{5}{12}

\frac{5}{12} cannot be simplified any more, so S=\frac{5}{12} is your answer :)

I hope this helps

6 0
3 years ago
There were 10 students in a teacher's classroom. The next week, there were 19 students. What is the percent increase
mixas84 [53]

Answer:

Step-by-step explanation:

7 0
3 years ago
Other questions:
  • 1.In a right triangle, <A and <B are acute. Find the value of csc A, when tan A = 8/15.
    5·2 answers
  • What are the intercepts of -4x+6y-5z=60
    10·1 answer
  • Help me with this answer
    14·1 answer
  • I WANT TO KNOW<br> WHAT IS THE MULTIPLE OF 6
    12·1 answer
  • "jose is r years old. keith is 3 times as old as he is. lara is 4 years younger than keith." find keith's age in terms of r
    6·1 answer
  • Gabriella has 4 times as many erasers as leona. leona has 8 erasers. how many ererasers does gabriella have
    8·1 answer
  • In the diagram below, KL = 12 and LM = 8. Which additional facts would guarantee that JKLM is a parallelogram? Check all that ap
    15·2 answers
  • Which of the following represents "54 is 9 times as many as 6"?
    9·2 answers
  • Joseph had $60 in a savings account. Each week he deposits $12 in the account. Which expression is equivalent to the total amoun
    13·1 answer
  • Solve the equation.<br> 30- (x + 5) = 7x-7<br> The solution is x =
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!