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
Alexus [3.1K]
3 years ago
10

Solve the quadratic equation by completing the square. x2 + 6x + 7 = 0

Mathematics
1 answer:
ruslelena [56]3 years ago
7 0
Hello,

x²+2*3x+3²+7-9=0
==>(x+3)²-2=0
==>(x+3-√2)(x+3+√2)=0
==> x=-3+√2 or x=-3-√2
You might be interested in
Two parallel lines are crossed by a transversal. If m6 = 123.5°, then m1 is 56.5°. 67.5°. 123.5°. 136.5°.
Temka [501]
Check the picture below.

4 0
4 years ago
Read 2 more answers
Translate the sentence into an inequality. Twice the difference of a number and 13 is at least -17.
Brums [2.3K]

Answer: 2( x - 13 ) ≥ 17

Step-by-step explanation:

8 0
3 years ago
Write the contrapositive of,"If an animal is a cat, then it has four paws.
Yakvenalex [24]
If the animal does not have 4 paws, then it is not a cat
5 0
4 years ago
The point (1, −1) is on the terminal side of angle θ, in standard position. What are the values of sine, cosine, and tangent of
defon
The abscissa of the ordered pair, that is the x-coordinate, is equal to 1 and the ordinate, the y-coordinate, is equal to -1. In the cartesian plane, this point lies in the fourth (IV) quadrant. The standard position of the angle is that which has one of its side is in the x-axis.

Solve for the hypotenuse of the right triangle formed.
           h = sqrt((-1)² + (1)²) = √2
Below items show the calculation for each of the trigonometric functions.

 sin θ = opposite/hypotenuse = y/h = (-1)/(√2) = -√2/2
 cos  θ = adjacent/hypotenuse = x/h = (1)/√2 = √2/2
tan θ = opposite/adjacent = y/x = -1/1 = -1
7 0
3 years ago
HELLPPPP MEEEE!!!!!!!!!!
Lady bird [3.3K]

Answer:

it is c im a 7th grader imjasmine

3 0
3 years ago
Other questions:
  • Need some help here...
    14·1 answer
  • For #23-24, translate and solve.
    5·1 answer
  • 6у = 8 - 9 + 6y<br><br> solve for y
    13·1 answer
  • Ethan has packed 6 shirts, 4 pairs of pants and 2 pairs of shoes for vacation. How many possible outfit combinations does Ethan
    13·2 answers
  • Pls help me, i dont know what i’m doing
    14·1 answer
  • What two numbers will give me 16 multiplied and -10 added together?
    10·2 answers
  • I WILL MARK BRAINLIEST FOR THE CORRECT ANSWER PLEASE HELP!!
    7·1 answer
  • Miyo works for an ice cream cart vendor. She receives $25 for taking the cart out for a shift plus a commission of $0.10 for eac
    8·2 answers
  • Determine which rotations will map this figure to itself.
    6·1 answer
  • Use the following information collected in a town of fast food restaurants. 13 served hamburgers, 8 served roast beef sandwiches
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!