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
blsea [12.9K]
3 years ago
6

Please help!! And pls show work

Mathematics
1 answer:
coldgirl [10]3 years ago
8 0
<h3>The answer to your question is k (-3) = 21!</h3>

Here's how I got this answer:

<em><u>K(a) = 2a^2 - a </u></em>

<em><u>K(a) = 2a^2 - a K(-3) = 2(-3)^2 - (-3)</u></em>

<em><u>K(a) = 2a^2 - a K(-3) = 2(-3)^2 - (-3)K(-3) = 2(9) + 3</u></em>

<em><u>K(a) = 2a^2 - a K(-3) = 2(-3)^2 - (-3)K(-3) = 2(9) + 3K (-3) = 18 + 3</u></em>

<em><u>K(a) = 2a^2 - a K(-3) = 2(-3)^2 - (-3)K(-3) = 2(9) + 3K (-3) = 18 + 3K (-3) = 21</u></em>

I hope this helps!

Also sorry for the late answer, I just got the notification that you replied to my comment, I hope I came in time!

You might be interested in
There are 720 dishes that need to be rinsed. Josh can rinse them in 72 minutes by himself. It will take his friend Felipe 144 mi
creativ13 [48]

Answer:

48 minutes

Step-by-step explanation:

\frac{1}{72} + \frac{1}{144} =\\\\\frac{2}{144}+\frac{1}{144}  =\\\\\frac{3}{144} \\\\

144÷3=48

7 0
2 years ago
PLEASE HELP WILL GIVE BRAINLIEST
OlgaM077 [116]

Answer:

G

Step-by-step explanation:

"Any particular event either (a) will happen or (b) won't happen."

That statement above is a certainty, probability = 100% = 1

This means the probability that event E <u>will </u>happen plus the probability that even E <u>won't </u>happen must add up to 100% = 1

So we can always say -->  prob(E) + prob (not E) = 1

The probability you will roll a 5 on a fair, six-sided die is 1/6.

So we use that to find the probability of not rolling the 5.

1/6 + prob(not E) = 1

   prob(not E) = 1 - 1/6  <---- This is answer G

    prob(not E) = 5/6

Hope this helps.

5 0
3 years ago
Which of the following is a list that follows this pattern with its numbers: prime, prime, prime, composite, prime, prime 1, 5,
Pani-rosa [81]

The correct answer is option A which is the pattern {prime, prime, prime, composite, prime, prime} is followed by 1, 5, 7, 9, 11, 13.

<h3>What are prime and composite numbers?</h3>

Prime numbers:-

The prime number is defined as the number which is divided by 1 and itself.

Composite numbers:-

The number is defined as the composite number when the number is divided by 1 itself and any other numbers also.

From the given options we need to choose the pattern of the series { prime, prime, prime, composite, prime, prime } so we can see that in option A correct pattern is followed.

Pattern { 1, 5, 7, 9, 11, 13 }

1   → prime

5  → prime

7  → prime

9  → composite

11  → prime

13 → prime

Therefore the correct answer is option A which is the pattern {prime, prime, prime, composite, prime, prime} is followed by 1, 5, 7, 9, 11, 13.

To know more about prime and composite numbers follow

brainly.com/question/375267

#SPJ1

7 0
2 years ago
Determine if each ratios or rates are equivalent.
maxonik [38]

Answer:

no these are not equivalent

Step-by-step explanation:

these aunt equivalent because 12+12 =24 and 3+3=6 not 7 or 28 so no ccx these are not equivalent

4 0
3 years ago
Jim says that the output of the floor function is the number before the decimal point in the input. For what domain is Jim’s sta
sweet [91]

Answer:

  integers ∪ [0, ∞)

Step-by-step explanation:

The floor function gives the largest integer not greater than the input value. For non-negative numbers, that is the integer portion of the number, as Jim says.

However, for negative numbers, the floor is one less than the integer portion of any number that has a non-zero fractional part.

  floor(1.2) = 1

  floor(0.2) = 0

  floor(-0.2) = -1

  floor(-1.2) = -2

For any integer, negative or otherwise, the floor function gives that integer value.

Jim is correct on the domain of all integers and positive non-integers.

6 0
3 years ago
Read 2 more answers
Other questions:
  • Simplify (x^3/3z)^-3
    6·2 answers
  • Need emergency help!!
    5·1 answer
  • SH<br>What is the greatest common factor (GCF) of 35 and 28?<br>​
    6·2 answers
  • There are 9 players on a baseball team. In how many different ways can the coach choose players for first base, second base, thi
    5·1 answer
  • The sum of the angle measures of a quadrilateral is 360 degree . Write and solve an equation to find the value of x . the two nu
    10·1 answer
  • A car was purchased for $20,000 new. Each year, you can expect the car to
    5·2 answers
  • Select all the expressions that are equivalent to 15n - 10
    8·2 answers
  • An architect drew plans for an office building. The building will have the dimensions shown below
    10·1 answer
  • Help me out plzzzzzzzz​
    7·1 answer
  • PLEASE HELPP 6TH GRADE MATH!!
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!