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
Lena [83]
3 years ago
6

If x2 = 30, what is the value of x? A. ±60 B. ±15 C. ±square root of 30 D.±square root of 15

Mathematics
1 answer:
anygoal [31]3 years ago
6 0

Answer:

  C.  ±square root of 30

Step-by-step explanation:

Apply the square root function to both sides of the equation:

  \sqrt{x^2}=\sqrt{30}\\\\|x|=\sqrt{30}\\\\x=\pm\sqrt{30}

_____

The absolute value equation has two solutions. They match choice C.

You might be interested in
An angle measures 79.4 degrees more than the measure of its supplementary angle. What is the measure of each angle?
tatyana61 [14]

Answer:

The angles are: 50.3 and 129.7

Step-by-step explanation:

The sum of supplementary angles is 180°.

Let x be one angle then the other angle will be x+79.4

Using the supplementary angle sum

x+x+79.4 = 180\\2x+79.4 = 180\\2x = 180-79.4\\2x = 100.6\\\frac{2x}{2} = \frac{100.6}{2}\\x = 50.3

For the measurement of 2nd angle

x+79.4 => 50.3+79.4 => 129.7

Hence,

The angles are: 50.3 and 129.7

4 0
3 years ago
Somebody pls help me with this question pls
monitta
292in^3
3x6x10=180 because I’ve split the shape in half
7x4x4=112
180+112=292
4 0
1 year ago
Greg purchases 1/2 dozens cupcakes for 5.88. Explain how you can determine the unit cost of the cupcakes.
Reika [66]

Answer: $0.98

Step-by-step explanation:

1/2 dozen is equal to 6 cupcakes

Divide 5.88 by 6 to get 0.98

This is the price for 1 cupcake, which is also the unit price.

7 0
2 years ago
How much of the circle is shaded? Write your answer as a fraction in simplest form.
jek_recluse [69]
I hope this helps you

3 0
3 years ago
Read 2 more answers
When a sprinkler is installed in the ground, the spray of water goes up and falls in the pattern of a parabola. The height, in i
poizon [28]

Answer:

96feet

Step-by-step explanation:

Given the height, in inches, of a spray of water is given by the equation ℎ(x)=160−16x^2

x is the number of feet away from the sprinkler head the spray

To get the height of the spray 2 feet away from the sprinkler head, we will simply substitute x =2 into the function and et the height h as shown;

From the equation

ℎ(x)=160−16x^2

h(2) = 160-16(2)²

h(2) = 160-16(4)

h(2) = 160-64

h(2) = 96feet

Hence the height will be 96feet if the spray is 2feet away from the sprinklers head

8 0
3 years ago
Other questions:
  • If d is the midpoint of ce, ce=10x+18 and de=7x-1, find x
    11·2 answers
  • What is the vertex of g(x)=8x^2-64x
    8·2 answers
  • a painter charges $35 per hour for labor plus 40$ for a ladder rental when he paints a house.the costomer provides the paint.tot
    10·1 answer
  • Select all of the expressions that are not equivalent to ax+bx+ac+bc. A.) x(a+b)+c(a+b) B.) a(x+c)+b(x+c) C.) (b+a)(c+x) D.) ax+
    7·1 answer
  • ABC bank requires a 20% down payment on all home loans . If a house is priced at 155,000 what is the amount of the down payment
    9·2 answers
  • How to find the value of x and y on a transversal
    9·1 answer
  • What is the answer to -3x+5= -16
    8·2 answers
  • What is (5.6*10^6)-340,000 <br><br> ​
    6·1 answer
  • Sherri borrowed $3,200 at 13 percent APR for 18 months. If she must pay 19.5 per $100, what is the total interest? $624 $3,824 $
    11·2 answers
  • Use the Intermediate Value Theorem to show that there is a root of the given equation in the specified interval.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!