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
Marrrta [24]
4 years ago
12

If x^2=20, what is the value of x?

Mathematics
2 answers:
Zielflug [23.3K]4 years ago
8 0

Answer:

-2√5 or 2√5 / 4.472135955 or -4.472135955

Step-by-step explanation:

Square root x² and 20 which leaves you with x and 2√5 or 4.472135955

JulsSmile [24]4 years ago
5 0

Answer:

x = 2√5 and x = - 2√5

Step-by-step explanation:

x^2 = 20

x = 2√5 and x = - 2√5

You might be interested in
What is an alternate interior angle
steposvetlana [31]

Step-by-step explanation:

Alternate interior angles are non-adjacent interior angles that do not have a common vertex on alternate sides of the transversal.  These types of angles have the same measure.

3 0
3 years ago
Read 2 more answers
Find the GCF OF 21 and 40
aniked [119]
The Greates Common Factor (GCF) is: 1
7 0
3 years ago
Montell gets $10.50 each week for doing yard work for his neighbors. He has earned $63 so far. Write and solve an equation to fi
Ilia_Sergeevich [38]

Answer:

10.50x = 63

You'll divide 63 by 10.50 to get 6 weeks.

8 0
4 years ago
What is the product of 2X plus 3 and 4X squared minus 5X plus 6
Tju [1.3M]
The product of something means multiplying the terms together.

(2x+3) (4x^2-5x+6)

Secondly you need to distribute the terms to each other (Think of problems like FOIL)

2x * 4x^2 + 2x(-5x) + 2x * 6 + 3 * 4x^2 + 3(-5x) + 3 * 6

Then you must take into account that some of the numbers are negative. (minus-plus rules!)

2x * 4x^2 - 2x * 5x + 2x * 6 + 3 * 4x^2 - 3 * 5x + 3 * 6

Now is the tricky part of simplifying everything. 

2x * 4x^2 = 8x^3 

2x * 5x = 10x^2

2x * 6 = 12x

3 * 4x^2 = 12x^2

3 * 5x = 15x

3 * 6 = 18

8x^3 - 10x^2 + 12x + 12x^2 - 15x + 18

Then you group like terms.

8x^3 - 10x^2 + 12x^2 - 3x + 18

8x^2 + 2x^2 - 3x + 18

The trickiest part of this is distributing all of the terms within the parentheses, once you've done that, it's smooth sailing!


5 0
3 years ago
The sales tax for a certain state can be found by multiplying the purchase price by 1/20 . What is the sales tax on an item that
Nuetrik [128]
The answer is $1.28 sale tax
Step-by-step explanation:
Multiply the cost of the item times 0.05 to get the amount of the sales tax:
25.60 * 0.05 = $1.28 sales tax
5 0
3 years ago
Read 2 more answers
Other questions:
  • 45°f to degree celsius round answer to the nearest tenth of a degree.
    9·1 answer
  • A rectangle has a length of 6x + 3 units and a width of 8 units.
    14·1 answer
  • Find the area of a relgular polygon with side equal to 3 and apothem equal to K
    10·1 answer
  • Whats the area surface of a rectangular prism with 7 as it’s width length and height
    13·1 answer
  • Do these ratios form a proportion?
    13·2 answers
  • Eight years ago, the daughters age was thrice the son's age. Now the daughter's age is 4 years more than the son's age. Find the
    10·1 answer
  • Christine drove 260 miles using 12 gallons of gas. At this rate, how many gallons of gas would she need to drive 286 miles?
    15·2 answers
  • Write an equation in slope-intercept form when given the slope and y-intercetp. Slope = 0 y-intercept = -3​
    12·2 answers
  • Someone please help! what is the measure of x?
    11·2 answers
  • There are 3 feet in 1 yard This is equivalent to 12 feet in 4 yards which proportion can be used to represent this?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!