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
lara [203]
1 year ago
9

Which equations are true for x = -2 and x = 2? Select two options

Mathematics
1 answer:
sweet [91]1 year ago
4 0

Answer:

x2-4 = 0

x2= 4

x = 2 or x = (-2)

You might be interested in
Which equation demonstrates the multiplicative identity property?
dedylja [7]

Answer: Further explanation

There are several number operations that involve multiplication:

1. commutative

2. associative

3. closed

Multiplication between integers will produce integers too

4. distributive property

* addition

* substraction

5. identity

The multiplicative identity property is a multiplicative property in mathematics where each number multiplied by 1 will produce the original number or can be stated simply  :

"The product of any number and one is that number"

So The Multiplicative Identity is 1

can be stated in the formula:

From the available answer choices

a) (- 3 + 5i) + 0 = -3 + 5i

this is an addition operation and not multiplication while O is an identity in the sum operation, so the statement is false

b) (-3 + 5i) (1) = -3 + 5i

this is a multiplication operation and 1 is a Multiplicative Identity of multiplication, so the statement is true

c) (-3 + 5i) (-3 + 5i) = -16-30i

d) (-3 + 5i) (-3 + 5i) = 16 + 30i

choice c and is a multiplication factor, so the statement is false

Step-by-step explanation:

5 0
2 years ago
A bakery uses 25 cups of flour to make 8 loaves of bread. What is true about the number of cups of flour in each loaf?
Levart [38]
So basically we need to divide

25/8=3.125

they need 3.125 cups of flour in each loaf

I hope I've helped!
6 0
3 years ago
A 250 ml bottle of water treatment liquid will treat up to 625 litres of water. Given that 1 cubic meter=1000 litres, how much t
kupik [55]
You will need:
(2240/625)*250=896 ml of treatment liquid.
If each bottle contains 250 ml you'll need 3.6 bottles (3 bottles and a bit more than half a bottle).

I do not think you need the conversion 1 cubic meter=1000 litres unless the volume of the tank is in cubic meters BUT 2240 cubic meters seems too large!
5 0
2 years ago
Determine the area of the triangular ABC with AC=5cm and height DB=30 mm.<br>​
Lady_Fox [76]

Answer:

750 mm²

Step-by-step explanation:

<h3>Area of triangle:</h3>

To find the area of the triangle, multiply the base and height and then divide the result by 2.

       \sf \boxed{\bf Area \ of \ triangle = \dfrac{1}{2}*base *height}

base = AC = 5 cm = 50 mm

height = DB = 30 mm

                                       \sf = \dfrac{1}{2}*50*30\\\\= 25 *30\\\\= 750 \mm^2

7 0
1 year ago
jose has a board that is 15 ft long he wants to cut it into 3/4 ft long how many pieces will he have ?
IrinaK [193]

Answer: 20

Step-by-step explanation: the equation would be 15 / 3/4, or 15/1 / 3/4 (the / meaning divide). You would divide it by multiplying the reciprocal of 3/4 (4/3) and 15(/1) , which you would get 20.

7 0
2 years ago
Other questions:
  • Quincy bought a variety-pack that
    13·2 answers
  • The table displays the probabilities of orders per week at Macy’s. The random variable x displays number of orders per week. (a)
    9·1 answer
  • Plot the following points to create a rectangle.
    8·1 answer
  • HELP!!! Ryan is driving to Phoenix. Suppose that the distance to his destination (in miles) is a linear function of his total dr
    11·1 answer
  • After paying $5.12 for a salad, Norachai has $27.10. How much money did he have
    9·2 answers
  • The solution (x, y) to a system of equations is the point where they...?
    8·2 answers
  • र<br> Solve the equation<br> y + 3 = -y + 9<br> O y= 1<br> O y=3<br> O y=6<br> O y=9<br> र
    8·2 answers
  • I need help with this trig question
    5·1 answer
  • A carton has a length of feet, width of feet, and height of feet. What is the volume of the carton?
    6·1 answer
  • graph the linear equation. find three points that solve the equation, then plot them on the graph. 5x-4y=-18
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!