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
frosja888 [35]
3 years ago
5

Dasfghg help me!!!!!!

Mathematics
1 answer:
jeka57 [31]3 years ago
8 0
Completing the square
alrighty
minus 31 both sides
x²+12x=-31
take 1/2 of the linear coefient and square it
12 is the linear coefient
12/2=6, (6)²=36
add that to both sides
x²+12x+36=36-31
factor perfect square trinomial
(x+6)²=5
square root both sides, remember to take positive and negative root

x+6=+/-√5


so what you want to write is
x+6=√5 and
x+6=-√5

the solutions
minus 6 both sides

x=-6+√5 and -6-√5
You might be interested in
Renata and her family go through an average of more than 15 cans of sparkling water each day. They buy cases of 24 cans at $3.50
kaheart [24]

Answer: The inequality required to express the above condition is   x     ≥    18.75

Step-by-step explanation:Renata and her family go through an average of more than 15 cans of sparkling water each day.

The number of cases of 24 cans of sparkling water.

We can take the number of cases to be x.

Each case is said to cost $3.50.

An inequality for the number of cases that Renata's family go through in 24 days can be written as

      x ≥            ⇒     x    ≥            ⇒   x ≥     18.75

Therefore the inequality required to express the above condition is

x     ≥    18.75

8 0
3 years ago
Find cos A if a=5, c=13
MatroZZZ [7]
Hello I did a call in a couple hours I did call 83
6 0
3 years ago
1779 miles per hour > _miles per minute
Alex777 [14]

Answer:

Step-by-step explanation:

29.65 mpm

4 0
3 years ago
A classic car is now selling for $2000 less than two times its original price. If the selling price is now $20,000, what was the
Otrada [13]

Answer:

$11,000

Step-by-step explanation:

Because,

20,000 + 2000 = 22,000

22,000 / 2 = 11,000

3 0
3 years ago
Kyra went to the grocery store on Monday and bought 5 apples and 2 oranges for a total of $3.45. On Thursday she bought 3 orange
Afina-wow [57]

Answer:

5(x)+2(y)=3.45

7(x)+3(y)=4.90

7 0
3 years ago
Other questions:
  • Evaluate the function rule for a given value <br> y=12•3x for x=-2
    14·1 answer
  • two similar cylinders have surface areas of 40pi square feet and 90pi. What is the ratio of the height of the large cylinders to
    5·1 answer
  • Gallon of gas cost 4$ carols car can drive 20 miles per gallon. what is the cost to drive 30 miles
    13·1 answer
  • PLEASE answer this I put the graph in the picture<br><br>​
    8·1 answer
  • PLS HELP FIND THE AREA OF THE SHAPE BELOW
    10·2 answers
  • What is 2 to the power of four thirds equal to?
    5·2 answers
  • Write the equation of the line passing through the points (0,-1) And (3,7)
    14·1 answer
  • Help me please!!!!!!!
    6·2 answers
  • The value of the ___________ is used to estimate the value of the population parameter.
    14·1 answer
  • James paid off the loan on his motorboat in the year 2006. He originally borrowed $6500 to buy the boat, but with simple annual
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!