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
Bess [88]
3 years ago
8

If (x-2) is a factor of x^3+kx^2 +12x-8 then k=?

Mathematics
1 answer:
AURORKA [14]3 years ago
5 0

Answer:

k = - 6

Step-by-step explanation:

Since (x - 2) is a factor then x = 2 is a root

Substitute x = 2 into the polynomial and equate to zero, that is

2³ + k(2)² + 12(2) - 8 = 0

8 + 4k + 24 - 8 = 0

4k + 24 = 0 ( subtract 24 from both sides )

4k = - 24 ( divide both sides by 4 )

k = - 6

You might be interested in
3x-12+10=8-2x what does x equal?
nikitadnepr [17]
X=2 because first you have to combine like terms. Than you have to bring the Varible on one side. Finally you solve for the Varible and you get the answer2.
5 0
3 years ago
Read 2 more answers
which graph could represent y, the amount owed on a car loan, as regular payments are made each month, x?
lianna [129]

Answer is the second graph

The more payments you pay, the less money you owe.

4 0
3 years ago
Read 2 more answers
An Olympic swimming pool is 50 metres long by 25 metres wide. Rebecca draws a scale diagram of it to a scale of 1 cm to 5 m. How
evablogger [386]

Answer:

10

Step-by-step explanation:

A scale drawing is a reduced form in terms of dimensions of an original image / building / object

the scale drawing is usually reduced at a constant dimension

scale of the drawing = original dimensions / dimensions of the scale drawing

Scaled length of the pool = 50 / 5 = 10cm

7 0
2 years ago
Carla is renting a canoe. It’s cost $80 for 2 hours and $160 for 4 hours. What is the rate per hour?
patriot [66]
<span>Carla is renting a canoe. It’s cost $80 for 2 hours and $160 for 4 hours. What is the rate per hour?

If we want to get a full understanding of this question we must use the information given.

If renting the canoe cost $80 per 2 hours, to get 1 hour we must divide $80 by 2.

</span>\frac{80}{2}=40

or $40

We can also use $160 and 4 hours

\frac{160}{4}=40

or $40

So the rate per hour is $40

8 0
3 years ago
Read 2 more answers
Cassie can drive 165 miles in 3 hour's. if she is driving at a constant speed, how many miles per hour is she driving​
Westkost [7]

Answer:

55mph

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
Other questions:
  • A load of bricks is twice as heavy as a load of sticks. The total weight of 4 loads of bricks and 4 loads of sticks is 771 kilog
    7·2 answers
  • ASAP What statements are true regarding the given statement and diagram?
    5·2 answers
  • Find the equation of the line containing (2, -5) and (6, 3).
    12·1 answer
  • If 7 gift bags cost $6.65 and the price of each bag is the same, how much does each bag<br> cost
    8·1 answer
  • Evaluate without using a calculator <br><br> 899^2 - 2 * 899 * 898 + 898^2
    10·1 answer
  • Which Shape is NOT quadrilateral
    6·1 answer
  • Which of the following pairs of numbers has a least common multiple of 48 ?
    6·1 answer
  • A+B=3<br> A•C+B=18<br> B•C+A=6<br> A=<br> B=<br> C=
    9·1 answer
  • A politician has $4,200 to buy TV advertisements. If each advertisement costs $700, how many advertisements can the politician b
    13·1 answer
  • Which of the following graphs represents a function?
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!