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
Andrews [41]
3 years ago
9

If x-2 is one of the factors of x^4-kx^2+4, find the value of k.

Mathematics
1 answer:
Andrei [34K]3 years ago
8 0

Step-by-step explanation:

Given expression is x⁴-kx²+4 =0

x−2 is a factor of the given expression.

So, x=2

Substitute in the equation, we get

2⁴-k(2)²+4

⇒16+4k+4=0

⇒4k=−20

⇒k=−5

You might be interested in
Can you help me here pls?
patriot [66]

Answer:

57.82 jddnhdhdhdgdggd

7 0
3 years ago
Read 2 more answers
A mechanic charged $220.28 to repair a car. The price included charges for 3 hours of labor and $126.53 for parts. How much does
Assoli18 [71]

Answer:

$31.25

Step-by-step explanation:

Let's set up an equation.

$220. 28 - total

$126.53 - cost for parts

3 - # of hours

? - price per hour

3h + $126.53 = $220.28

Subtract $126.53 from both sides.

3h = $93.75

Divide by 3.

h = $31.25

The mechanic charges $31.25 per hour for labor.

Hope that helps.

6 0
3 years ago
Which account has the lowest minimum balance requirement? Bank Account Terms and Conditions Bank A has a $500 minimum balance, b
Genrish500 [490]

Answer:

The correct option is Account D

Step-by-step explanation:

Bank requires that $500 minimum balance,this is the highest minimum balance out of all the four banks.

Bank B's minimum required balance is $250 which is the third highest minimum balance.

Bank C requires account holder to have as minimum balance $300 which is second highest minimum balance.

Bank D only requires $100 that is the minimum among all the four banks

6 0
3 years ago
draw and shade a figure that represents 100 percent. label ur figure ''100 percent'' describe the figure in words?
Alecsey [184]
Draw a bar and shade it in all the way
4 0
3 years ago
To increase an amount by 3% what single multiplier would you use?<br> thanks :)
KATRIN_1 [288]
X - an amount

x+3\%x=x+0.03x=1.03x

To increase an amount by 3% you can multiply the amount by 1.03.
4 0
3 years ago
Other questions:
  • Subtract.<br><br> 14x-(6+7x)<br><br> (Simplify answer)
    14·2 answers
  • Justin bought some yarn from his favorite craft store. He can make one scarf with 3/5 of a ball of yarn. If he purchases 15 ball
    6·1 answer
  • Shreya and Ted are selling cheesecakes for a school fundraiser. Customers can buy French silk cheesecakes and chocolate marble c
    7·1 answer
  • Answer this equation<br> −4x+5=−4x−5
    11·2 answers
  • HELP PLZ I NEED THIS ANSWER FAST! D: im dumb-
    7·1 answer
  • HELP!!!!!!!!!!! !!!!!!!!!!
    13·1 answer
  • A straight line L is perpendicular to line 3x-2y+4=0. The area of triangle formed by the line L and coordinate axes is 27 sq.uni
    11·2 answers
  • Please help me with this homework
    10·1 answer
  • Do all these angles equal 360 degrees?
    8·1 answer
  • A political campaign wants to estimate the number of adult residents who voted in the last city election. Answer the following.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!