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
CaHeK987 [17]
2 years ago
6

Find the solutions to x² = 20.

Mathematics
1 answer:
snow_tiger [21]2 years ago
7 0

Answer:

x = \pm2 \sqrt 5

Step-by-step explanation:

~~~~~~x^2=20\\\\\implies x = \pm\sqrt{20}\\\\\implies x = \pm \sqrt{ 4 \times 5}\\\\\implies x = \pm2 \sqrt 5

You might be interested in
In AABC, the measure of ZC=90°, the measure of ZA=63°, and AB = 35 feet. Find the
irinina [24]

Answer:

40 feet

Step-by-step explanation:

bfhfbdjfbfufbfufbfhdjfhfbfudbdvdvdvdhdhdhdhdhdhdudbfufhf

8 0
3 years ago
The table shows the relationship of how many pounds of cherries are needed to make a certain number of pies:
posledela

Answer:

C. A graph is drawn. The horizontal axis and vertical axis values are 0 to 70 in increments of 10. The horizontal axis label is Number of Pies, and the vertical axis label is Pounds of Cherries. Points are plotted on the ordered pairs 30, 20 and 45, 30 and 60, 40.

Step-by-step explanation:

If we take two of the original points from the data and put them in to two point form we get the following equation.

(6,4) and (12,8)

(y-4) = [(8-4)/(12-6)](x-6)

y = 2/3x

You have to start a the origin since we can only have enough ingredients to make pies and we can't start with partial pies. So move to y intercept up by 2.

Put the x values in for answer C and you'll return the y values.

6 0
3 years ago
Given a=b+ cd. Make c the subject of the formulae
daser333 [38]

Answer:

a=b+cd

c=b/c/a or c^2=b/a

Btw ^2 means squared or to the second power.

this might no be the answer you are looking for though

5 0
3 years ago
In parallelogram LMNO, what are the values of x and y?
Norma-Jean [14]
In a parallelogram, if two opposites are congruent, then the two opposites are equal. We apply this description to solve the problem.
∠O = ∠M since they are opposite
2x = 3x - 55
55 = 3x - 2x
55 = x

Total of all angles in the parallelogram is 360°
∠L + ∠N +∠O +∠M=360°
360° - ∠O -∠M = ∠L + ∠N note that ∠L =∠N
360° -110° -110° = 2∠N
70° = ∠N

Solving for Y,
∠N = 5Y = 70°
Y=70/5
Y=14

Therefore, the value of "x" is 55 and the value of "y" is 14. The answer is the letter "C".
6 0
3 years ago
Read 2 more answers
Find the domain of the function. (enter your answer using interval notation.) f(x) = x + 3 if x < −1 −2x if |x| ≤ 1 −2 if x &
Ivenika [448]

The domain of the function is the union of all of the "if" parts of the function definition:

... (-∞, -1) ∪ [-1, 1] ∪ (1, ∞) = (-∞, ∞)

4 0
3 years ago
Other questions:
  • What is the average rate of change for the sequence shown below? coordinate plane showing the points 1, 4; 0.5, 3.5; 0, 3; and n
    9·1 answer
  • Write an expression to represent: Four less than the quotient of a number x and 5.
    5·2 answers
  • In the triangle below, b = ____. If necessary, round your answer to two decimal places
    5·2 answers
  • Use three different values of n to demonstrate that 2n + 3n is equivalent to 5n.
    15·2 answers
  • URGENT!! PLEASE HELP 30 POINTS! FAKE ANSWERS REPORTED
    9·1 answer
  • Why does nobody actually help people with questions on here?
    7·2 answers
  • Please help!! <br><br> 2y = -1 + 9<br> 3х — бу :<br> -15<br> M
    13·1 answer
  • Adding subtracting complex numbers<br> (5-3i) - (-2+4i)
    13·1 answer
  • Under her cell phone plan, Julieta pays a flat cost of $61.50 per month and $5 per gigabyte. She wants to keep her bill at $78 p
    9·1 answer
  • 1. The midpoint of KL is M(5, -7). One endpoint is K(9,-7). Find the coordinates of the other endpoint L.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!