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
Mars2501 [29]
3 years ago
9

Solve. x² + 6x + 9 = 12 (Choices in photo)

Mathematics
2 answers:
Irina18 [472]3 years ago
6 0
X^2 + 6x + 9 = 12

X^2 + 6x - 3 = 0

(-6 ± <span>√(6^2 - 4*1*-3) ) / 2

3 </span>± √(48) / 2<span>

</span>3 ± 4√(3) / 2

3 ± 2√(3)
jeyben [28]3 years ago
6 0
To solve this problem and to calculate the value of the variable "x", you must apply the following proccedure:

 1. You have the quadratic equation:
<span>
 x²+6x+9=12

 2. Then:

 </span>x²+6x+9-12=0
 x²+6x-3=0
<span>
 3. You must apply the quadratic formula, which is:

 (-b±√(b^2-4ac))/2a

 a=1
 b=6
 c=-3

 4. Then, the result is:

 x=-3</span>±2√3
<span>
 Therefore, the correct option is the first one: </span>x=-3±2√3
You might be interested in
The given two-parameter family is a solution of the indicated differential equation on the interval
mr_godi [17]

Answer:

I do 1 option for you as an example, you need to check the leftover by yourself.

Step-by-step explanation:

for d) y(0) = 0 and y'(pi) =0

y(0) = C_1e^0cos(0)+ C_2 e^0 sin(0) = 0 \longrightarrow C_1 = 0

y(x) ' = C_1e^x cos(x) - C_1e^x sin (x) + C_2e^x sin(x) + C_2e^x cos(x)

y(\pi)'=C_1e^\pi cos(\pi)- C_1e^\pi sin(\pi)+ C_2e^\pi sin(\pi) + C_2e^\pi cos (\pi)

Replace C_1 = 0 we have

y'(\pi) = -C_2e^\pi = 0

if and only if C_2 =0

Hence the given solution does not work.

then, d is NOT the correct answer.

3 0
3 years ago
Ye I don’t so any of y’all got the answer?
natima [27]
No we donntttt I’m struggling
4 0
3 years ago
Tyler paid $16 for 4 raffle tickets.<br> What is the price per ticket?
Mekhanik [1.2K]

Answer:

$4

Step-by-step explanation:

16 divide by 4 equals 4

5 0
3 years ago
Read 2 more answers
Select whether to use the Pythagorean Theorem or its converse in each situation.
notsponge [240]
1. Pythagorean Theorem
2. Converse
3. Pythagorean Theorem
4. Pythagorean Theorem
7 0
3 years ago
The length of a rectangle is 2 more than 3 times the width. if the perimeter is 100. find the length and with of the rectangle
Greeley [361]
A ihjerhvyugvehifsvyueuhwfutygw
4 0
3 years ago
Other questions:
  • Please help me this is due tomorrow and please follow me and I am in the 5th grade
    5·1 answer
  • Can someone please help me with this question? Thanks if you do!
    14·2 answers
  • Find an equation of the line passing through the pair of points (2,3) and (5,9). Write the equation in the form Ax + By = C.
    5·1 answer
  • Dave made 12 free throws out of 15 attempts during the basketball game. What was his free throw average expressed as a decimal?
    12·1 answer
  • On a certain hot​ summer's day, 459 people used the public swimming pool. The daily prices are $1.50 for children and $2.00 for
    7·1 answer
  • A package in the shape of a rectangular prism has a length of 412 feet, a width of 234 feet, and a height of 213 feet. What is t
    6·1 answer
  • Can I get some help on the last question?
    11·1 answer
  • Remember, the perimeter of a rectangle is twice the length plus twice the width. Use w to represent the width.
    9·2 answers
  • Which is a base unit used in the metric system?
    11·2 answers
  • Please help. No links or else I will report you.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!