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
dolphi86 [110]
3 years ago
15

What is the solution X^2-6=-7

Mathematics
1 answer:
Marta_Voda [28]3 years ago
6 0

Answer:

x=i, -i.

Step-by-step explanation:

x^2-6=-7

x^2-6-(-7)=0

x^2-6+7=0

x^2+1=0

x^2=0-1

x^2=-1

x=i, -i.

You might be interested in
Simplify the expression \[\frac{6}{\sqrt{36} + \sqrt{27}} + \frac{6}{\sqrt{27} + \sqrt{18}} + \frac{6}{\sqrt{18} + \sqrt{9}}.\]
Viktor [21]

Answer:

= 18 ( 3 + 2(\sqrt{3}  + \sqrt{2} ))

Step-by-step explanation:

6(\sqrt{36} +\sqrt{27}) + 6(\sqrt{27} +\sqrt{18}) + 6(\sqrt{18} + \sqrt{9} )\\= 6( {6} +\sqrt{9*3}) + 6( \sqrt{9*3}  +\sqrt{9*2}) + 6(\sqrt{9*2} + 3 )\\= 6( {6} +3\sqrt{3}) + 6(3\sqrt{3} +3\sqrt{2}) + 6(3\sqrt{2} + 3 )\\=36 + 18\sqrt{3} + 18\sqrt{3} + 18\sqrt{2}+ 18\sqrt{2} + 18\\= 36+18  +18( \sqrt{3}+ \sqrt{3} +\sqrt{2} + \sqrt{2})\\= 54 + 18 (2\sqrt{3} +2\sqrt{2})\\=54 + 36\sqrt{3}  + 36\sqrt{2}\\= 18 ( 3 + 2(\sqrt{3}  + \sqrt{2} ))

7 0
3 years ago
a gift box is 4 inches long 5 inches wide and 8 inches tall how much wrapping paper will it take to wrap thr box?
Natalka [10]
The answer is 160. U multiply all. PUT ME AS BEST
3 0
2 years ago
Please help me! I will give Brainlylist
Zinaida [17]

Answer:

I would say that they are different because if x - a has a value to the equation then that means a - x will not have the same value because it may be rearranged to a different equation but that doesn't mean that they will have the same value. that explain why x - a and a - x are not the same

7 0
2 years ago
A 72.5-foot rope from the top of a circus tent pole is anchored to the ground 44.4 feet from the bottom of the pole. What angle
miv72 [106K]
Let angle = x

sinx = 43.2/72.5

=> x = 36.57 degrees
4 0
3 years ago
Someone plsss help me!!!!!
MariettaO [177]

Answer:

x = 2

Step-by-step explanation:

the formula for this problem is

Area = 1/2 base x Height

step 1) plug in what we know

5 = 1/2 base(5)

step 2) switch sides

1/2 base x 5 = 5

step 3) divide both sides by 1/2 x 5

\frac{1/2 base( 5)}{1/2(5)} = \frac{5}{1/2(5)}

step 4) Simplify

\frac{1/2 base (5)}{1/2 (5)}: b

step 5) Simplify

\frac{5}{1/2(5)}: 2

step 6) now you have gotten the answer<u> x = 2</u>

6 0
3 years ago
Other questions:
  • What is the net mass of sugar if the gross mass is 12.5kg and the empty container is 400g
    8·1 answer
  • Five friends go out to the football field, and decide to throw tide pods onto the field, while standing at different places in t
    11·1 answer
  • Triangle J L K. Side L K is 4 meters and K J is 3 meters. Angle L is 48 degrees and angle K is 90 degrees. Triangle M O N. Side
    9·1 answer
  • The Pythagorean Theorem ONLY works on which triangle? *
    15·1 answer
  • A line passes through the point (0,−4) and has a slope of −3/7.
    15·2 answers
  • Please help me. its due in 15 minutes.
    14·2 answers
  • what is the difference between multiplying fractions and adding/subtracting fractions? complete sentances pleaseo
    11·1 answer
  • Ishi bought a canvas and 6 tubes of paint for $24.45. If the canvas cost $6.45, what equation would represent this problem?
    7·1 answer
  • 14. Work needed to solve the problem: April can buy a package of 10 folders for $1.20 or a package of 8 folders for $1.12. What
    6·1 answer
  • Plz help with this if you dont mind
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!