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
il63 [147K]
3 years ago
5

Find the value of c that completes the square. k^2-18k+c

Mathematics
2 answers:
eimsori [14]3 years ago
4 0

Answer:

c = 81

(k-9)(k-9)

k²-18k +81

sdas [7]3 years ago
4 0

Answer:

Discriminant(D) = 0

Therefore b² = 4ac

when b = -18, a = 1, c = c

puting the values in the equation...

(-18)² = 4(1) x C

324 = 4C

divide though by 4

we have : C = 324/4

C = 81

You might be interested in
Plz help! Sam had an appointment 90 miles away from home at 2pm. He drove there at 60 mph, and was 15 minutes late. What time di
never [62]

Answer:

12:45 pm

Step-by-step explanation:

First we find out the amount of time it takes to drive 90 miles at 60 mph.

speed = distance/time

time * speed = distance

time = distance/speed

time = 90 miles / 60 mph

time = 1.5 hour = 90 minutes

It takes 1.5 hour, or 90 minutes, to drive 90 miles at a speed of 60 mph.

To get there at 2:00 pm, he should have left at 12:30 pm.

He got there 15 minutes late, so he must have left 15 minutes late.

He left at 12:45 pm.

Answer: 12:45 pm

3 0
3 years ago
13+39-2-10-6 power2 orders of operation
Advocard [28]
6 to the power of 2 is 6 multiplied by six which is 36
then 13 + 39 is 52 - 2 = 50- 10 = 40 - 36=  the answer 4
8 0
3 years ago
What is the mass of 8.65x 10^23 molecules of N2Cl4?
ArbitrLikvidat [17]

Answer:

8.6E23

Step-by-step explanation:

8 0
3 years ago
Subtract.
kobusy [5.1K]
Is it 729 lol why would you put it as mixed number
8 0
3 years ago
Read 2 more answers
Ava deposited $14 in a savings account that earns 2.7% simple interest. What would the graph look like?
katen-ka-za [31]

Deposited amount = $14.

Rate of interest =  2.7%

In decimals 2.7 could be written by dividing 2.7 by 100, we get

0.027.

Interest earned each year = 2.7% of $14 = 0.027*14 = $0.378.

We can make a table to balance by after each year.

First year balance: First year interest + Deposited amount = 0.378 +14 = $14.378.

Second year balance: Second year interest + Deposited amount = 2*0.378 +14 = 0.756+ 14 = $14.756.

Third year balance: Third year interest + Deposited amount = 3*0.378 +14 = 1.134+ 14 = $15.134.

We get four coordinates to graph A(0,14), B(1, 14.378) , C(2, 14.756) and D(3, 15.134).

Plotting those coordinates of the points A, B, C and D on the graph.



8 0
4 years ago
Other questions:
  • Given b(x)=√3x+3 evaluate f(11) I really need help with this.
    14·1 answer
  • PLEASE HELP! URGENT! 30 POINTS!
    6·2 answers
  • One factor of x^3+x^2-14x-24 is x-4. find the remaining factor
    12·2 answers
  • Part of the process for evaluating a video is
    10·2 answers
  • 2.394inches per minute about how many inches will it travel in 7.489minutes.
    12·2 answers
  • CAN SOMEONE PLEASE HELP ME WITH THIS QUICKLY!!!!!!!!!!!!!!!
    10·1 answer
  • if you drive to your spring break destination at a steady 60 miles per hour and Return at a steady 40 miles per hour what is you
    10·1 answer
  • Please help me real quick ​
    5·1 answer
  • Please Help!<br><br><br>Find Angles 3 and 8 in degrees
    8·1 answer
  • A rectangle has vertices H(3,0), I(3,7), J(6,7) , and K(6, 0) . Use the coordinates to find the perimeter of the rectangle. _uni
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!