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
alexira [117]
3 years ago
11

X²+2kx-3 where X=-1/2 find k​

Mathematics
1 answer:
telo118 [61]3 years ago
5 0

Answer:

k =11/4 according to my calculation.hope this might be helpful

You might be interested in
What is the rule
Taya2010 [7]
Add 5

y is found by adding 5 to x
5 0
3 years ago
Solve for x and then part b) find JL. Have no clue how to go about this
Igoryamba

9514 1404 393

Answer:

  • x = 4
  • JL = 16

Step-by-step explanation:

a) You go about this by using the given equation.

  Left + Right = Total

  JK + KL = JL

  (2x -3) + 11 = 4x

  8 = 2x . . . . . simplify, subtract 2x

  4 = x . . . . . . divide by 2

__

b) JL = 4x = 4·4

  JL = 16

8 0
3 years ago
Solve. x + 9 = –15 x = [1] <br><br> help please
max2010maxim [7]

Answer:

1/2

Step-by-step explanation:

x + 9 = -15x = [1]

x - x + 9 = -15x -x = 1

9 - 1 = -16x

8 = 16x

8/16 = 16/16x

1/2 = x

Hope this helps

7 0
3 years ago
Read 2 more answers
JK = 7x + 9<br> JL = 114, and<br> KL = 9x + 9,<br> Find KL.
VikaD [51]

Answer:

KL= 63

Step-by-step explanation:

JK=7x+9 , JL=114 , KL=9x+9 ( if the points are on the same line and point J at the end point and K in the middle)

*J_______________________K___________________________L

JL=JK+KL

114=7x+9+9x+9

114-18=16 x

16x=98

x=98/16=6

KL= 9x+9

KL=9(6)+9

KL= 63

8 0
3 years ago
Find the missing number (1+_ ÷7+4)÷8=4/7​
GaryK [48]

The answer to (1+_÷7+4)÷8= 4/7 is -3 I believe

3 0
3 years ago
Other questions:
  • A man walks 10 miles in x hours. How far does he walk in one hour?
    7·1 answer
  • Can someone help me solve this step by step?? im in an algebra 1 class by the way if that helps at all.
    13·1 answer
  • Noor has 4 cups of hot chocolate in his thermos. He offers 5/8 cup servings of hot chocolate to some friends. What is the greate
    10·1 answer
  • What is 1290 greatest square
    10·1 answer
  • Lucy earned $400 and $550 in interest the last 2 years. Describe the average interest she should earn in each of the next 3 year
    7·1 answer
  • Prove that the parallelogram circumscribing a circle is a rhombus<br>Match the​
    13·1 answer
  • PLEASEEE HELP ME ASAP (WITH EITHER OF THEM)!!!! thank you so so much!!!!! *will give brainliest*
    8·1 answer
  • The sum of 7 and 3 times a number is 34.<br> What is the number?
    14·1 answer
  • 3,328 divided by 8 show your thinking
    13·2 answers
  • there are approximately 3 million births in the unitad states each year .find the birth rate per minute
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!