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
ella [17]
3 years ago
13

If x2 = 30, what is the value of x?

Mathematics
2 answers:
nataly862011 [7]3 years ago
6 0

Subtract 30, then factor the equation.

... x² = 30

... x² - 30 = 0

... (x -√30)(x +√30) = 0

By the zero product rule, the solutions are values of x that make a factor be zero.

... x - √30 = 0 . . . . the first factor is zero

... x = √30

... x + √30 = 0 . . . . the second factor is zero

... x = -√30

The solutions are . . .

... x = ±√30 . . . . . matches your 3rd choice

klasskru [66]3 years ago
4 0

Answer: C

Step-by-step explanation: hope it helps :)

You might be interested in
Find an integer, x, such that 5, 10, and x represent the lengths of the sides of an acute triangle.
Gnoma [55]
For the answer to the question above, I'll explain my answer through an equation below.
<span>5+10>x,x<15
5+x>10
x>10-5
or x>5
</span>So the answer is either multiple choice letter C. 6 or multiple choice letter D. 11

I hope my answer helped you. Have a nice day!
7 0
3 years ago
Last season Ellen and Janet together won 32 tennis matches Ellen won 6 more than then Janet How many more matches did Ellen win
joja [24]

T = J + E

T = J + (J + 6)

T = 32

32 = 13 + (13 + 6)

32 = 13 + 19

32 = 32

Ellen won 19 matches.

8 0
3 years ago
Read 2 more answers
Which equation shows a proportional relationship between x and y?
spayn [35]

<em>B</em><em>.</em><em> </em><em>y</em><em>=</em><em>3</em><em>x</em><em>+</em><em>1</em>

Step-by-step explanation:

<em>#</em><em>H</em><em>o</em><em>p</em><em>e</em><em>e</em><em>e</em><em> </em><em>Itttt</em><em> </em><em>Helppsssssss</em><em>!</em>

6 0
2 years ago
Does anyone know the answer
Ganezh [65]
72a+y because I'm smart
8 0
2 years ago
PLEASE HELP!!!! 20 POINTS!!!
ANEK [815]
9 and then 4 for every 9 goldfish, there are 4 gallons of water
5 0
3 years ago
Other questions:
  • If PQ bisects CX at point J, and if JX = 4y and CJ = y+9 find y
    12·1 answer
  • Emerson is making a punch that contains 60% grape juice and the rest lemon-lime soda. The punch has 2 liters of lemon-lime soda.
    10·1 answer
  • What is the greatest perfect square that is a factor of 980?
    7·2 answers
  • An artist agrees to paint a landscape painting at $0.30 per square inch. If the painting is 13 inches by 17 inches, how much sho
    11·1 answer
  • (b) A square has a perimeter of 12 yd. What is the length of each side?
    9·1 answer
  • If you get this you are a critical thinker.
    10·2 answers
  • I need help with this question ASAP
    10·2 answers
  • A number cube has sides labeled 1 to 6. Gia rolls the number cube. What is the probability that she rolls a 4?
    12·2 answers
  • The results of a color spinner experiment are shown in the table. Consider the experimental probability of the spinner landing o
    13·1 answer
  • I WILL GIVE BRAINLIEST, I BEG
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!