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
chubhunter [2.5K]
3 years ago
8

K² = 76What is the answer?​

Mathematics
2 answers:
Simora [160]3 years ago
6 0

Answer:

± 8.7178 or ± the square root of 19

Step-by-step explanation:

Solve  :    k2-76 = 0

Add  76  to both sides of the equation :

                     k2 = 76

When two things are equal, their square roots are equal. Taking the square root of the two sides of the equation we get:  

                     k  =  ± √ 76  

Can  √ 76 be simplified ?

Yes!   The prime factorization of  76   is

  2•2•19

To be able to remove something from under the radical, there have to be  2  instances of it (because we are taking a square i.e. second root).

√ 76   =  √ 2•2•19   =

               ±  2 • √ 19

The equation has two real solutions  

These solutions are  k = 2 • ± √19 = ± 8.7178  

Dmitry_Shevchenko [17]3 years ago
3 0

Answer:

k = 2 √ 19 , − 2 √ 19

Step-by-step explanation:

Take the root of both sides and solve.

You might be interested in
Solve 1/3 x = -4/5????
nlexa [21]

Answer: X= -12/5

welcome

3 0
3 years ago
Read 2 more answers
Help I’m so dumb ://
il63 [147K]

Answer:

The corresponding angles are congruent and the corresponding sides are congruent.

Step-by-step explanation:

8 0
3 years ago
Factor the trinomial: 5x^2+22x+21
Vika [28.1K]

Answer:

ggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggg

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
If point (7.b) is in Quadrant I and point (a.--3)
lys-0071 [83]
The point (a,b) would be in quadrant 2 (the one on the top left)
6 0
3 years ago
Read 2 more answers
Can someone help me with this ​
Nataly_w [17]

Answer:

  b, e

Step-by-step explanation:

a, b) ordinarily, we claim the variable on the vertical axis is a function of the variable on the horizontal axis. By that claim, <em>temperature is a function of time</em>.

If the graph passed the horizontal line test (a horizontal line intersects in one place), then we could also say time is a function of temperature. The graph does not pass that test, so we cannot make that claim.

c) The graph has negative slope between 4:00 and 5:00. Temperature is decreasing in that interval, not increasing.

d) The graph has two intervals in which it is horizontal: 5:00-9:00 and 11:00-12:00. In those intervals it is neither increasing nor decreasing.

e) The graph shows a minimum in the interval 11:00-12:00. <em>The lowest temperature first occurs at 11:00</em>.

6 0
3 years ago
Other questions:
  • Plz help me with this !
    11·1 answer
  • What type of graph is best to use to show data that are parts of a whole?
    12·1 answer
  • Which number can each term of the equation be multiplied by to eliminate the fractions before solving?
    10·1 answer
  • Stephanie is running a 5K race. She wants to keep track of her time and her distance throughout the race. Identify the independe
    7·1 answer
  • Xavier runs for 0.75 mile each day. How far does he run at the end of 6 days?
    10·2 answers
  • How much soup is in a quarter of a can 20cm. tall and with<br> diameter of 12cm?
    15·1 answer
  • Helppppppp!! Asappp!!!
    9·1 answer
  • Translate the sentence into an equation.
    11·1 answer
  • CONVERT THE FOLLOWING TERMS FROM RATIO TO FRACTION AND VICE VERSA.
    14·1 answer
  • Is point B a reflection across the x-axis of point C? Explain why or why not.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!