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
Amiraneli [1.4K]
3 years ago
14

Place the following steps in order to complete the square and solve the quadratic equation,x^2+7=0

Mathematics
1 answer:
forsale [732]3 years ago
6 0
X^2+7=0
this can be written as:
x^2+0x+7=0
To solve using completer square we proceed as follows:
x^2+0x=-7
but
c=(b/2a)^2
c=(0/2*1)^2=0
hence
x^2+0x+0=-7+0
this will be simplified as:
x^2=-7
getting the square root of both sides gives us:
sqrt(x^2)=sqrt(-7)
x=+/-√-7
but √-1=i
hence our answer will be:
x=+/-7i
You might be interested in
Pls pls pls help <br>Find the perimeter and the area​
Illusion [34]

Answer:

Perimeter = 42 units Area = 57.73 square units

Step-by-step explanation:

Perimeter of an Astroid = 6l ---> 6 x 7 = 42 units

Area of an Astroid = (3 x pi x a^2)/8 = 57.73 square units

3 0
3 years ago
What is the value of e use in solving logarithm?
irina [24]

Answer:

2.718 28...

Step-by-step explanation:

the value of e use in solving logarithm is 2.718

7 0
3 years ago
Read 2 more answers
Which congruence statements are true? Choose all answers that are correct?<br><br> A: B: C: D:
tester [92]

Answer:

Correct choices are A and C

Step-by-step explanation:

Inscribed angles property: The inscribed angles subtended by the same arc are equal.

1. Angles EFH and EGH are both inscribed angles subtended by the arc EH. Therefore, these angles are congruent (option A is true).

2. Angles GHF and GEF are both inscribed angles subtended by the arc GF. Therefore, these angles are congruent (option C is true).

3. Angles EGH and FHG are interior angles of the triangle KGH and can be congruent (if triangle is isosceles) or can be not congruent (in general). Thus, option B is false.

4. Angles EFH and FHG in general are not congruent. They can be congruent only when arcs EH and FG have the same measure. In general, option D is false.

4 0
3 years ago
The ratio of the measures of the three angles in a triangle is 9:3:6.
Alex

Step-by-step explanation:

this is how you solve it :)

5 0
2 years ago
Question 6 of 10
Tanya [424]

Answer:

- 2

Step-by-step explanation:

Parallel lines have equal slopes

Then the slope of the red line is equal to the slope of the green line, that is

slope of red line = - 2

3 0
2 years ago
Other questions:
  • The sum of two numbers is 30. the difference of the two number is 4. what number is lesser
    7·1 answer
  • Solve this problem (3x²+30x+5)(8x-5)​
    5·1 answer
  • Write a4bc2in expanded form.
    8·1 answer
  • If \\(z_1=3+2i\\) and \\(z_2=4+3i\\) and are complex numbers, find \\(z_1z_2\\)
    5·1 answer
  • Given y²+5y-6= (y+p) (y+q), find the values of p and q. ​
    14·2 answers
  • You walk 1.5miles in a half an hour. What is your average speed?
    13·2 answers
  • Evaluate 16x^{0} if x = -3
    6·1 answer
  • Can someone plz help me?
    9·1 answer
  • Translate the following word phrase into an algebraic expression.
    15·1 answer
  • Select the correct answer from each drop-down menu. y = f(x) = (1/2) ^ 5 Consider the function The value of f(- 7) is The value
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!