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
olchik [2.2K]
3 years ago
14

Very confusing, please help

Mathematics
2 answers:
Ksivusya [100]3 years ago
7 0

Answer:

A -2*-2 ≠- 4

Step-by-step explanation:

sqrt(-4)

The answer is an imaginary number

-2*-2 = 4 not -4

kotegsom [21]3 years ago
4 0

Answer:

\sqrt{-4} \neq -2 \\  because -2 times -2 equals 4 not -4.

Therefore A. -2^{2}\neq 4 is the answer to this question.

If you need help on similar problems feel free to ask, hope I helped :)

You might be interested in
If the width of a rectangle is(x + 5) cm and its perimeter is (10x + 26) cm.
zaharov [31]

Answer:

10x + 26 = 2x + 58

10x = 58-26

10x = 32

X = 3.2

I think??

3 0
2 years ago
A parabola can be drawn given a focus of (4,-8) and a directrix of x = -4. What can be said about the parabola?
Pani-rosa [81]

Answer:

It opens to the right and the vertex is at  (0, -8).

The axis of symmetry is y = -8.

Step-by-step explanation:

The vertex is halfway between the directrix and the focus.  

The focus is to the right of the directrix so the curve will open towards the right. The axis of symmetry is the line y = -8.

6 0
3 years ago
Select the FOUR equations that are equivalent to 2(x+3)−2=16.
zimovet [89]

Answer:

A (x+3)−1=8open paren x plus 3 close paren minus 1 is equal to 8

C 2(x+3)=182 times open paren x plus 3 close paren is equal to 18

E 2x=122 x is equal to 12

Step-by-step explanation:

Given:

2(x+3) − 2 = 16

2x + 6 - 2 = 16

2x = 16 - 6 + 2

2x = 12

x = 12/2

x = 6

A. (x+3)−1=8

x + 3 - 1 = 8

x = 8 - 3 + 1

x = 6

B (x+3)−2=8

x + 3 - 2 = 8

x = 8 - 3 + 2

x = 7

C 2(x+3)=18

2x + 6 = 18

2x = 18 - 6

2x = 12

x = 12/2

x = 6

D x+3=9x

3 = 9x - x

3 = 8x

x = 3/8

E 2x=12

x = 12/2

x = 6

F 2x=15

x = 15/2

x = 7 1/2

8 0
2 years ago
Graph f(x)=-2|x+4| khan academy
Vladimir [108]

Answer:

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Is the relationship a function or non function explain​
sergeinik [125]
Not a function.

if there are two of the same x-intercept (which make a vertical line). If there is, then it is NOT a function.

If this helps mark me brainliest please!!
4 0
2 years ago
Other questions:
  • Label the place value of 987,164.302
    11·1 answer
  • What percent of 50 is 9?
    12·1 answer
  • Pls find x, has to do with trig and answer has to be in radical form
    14·2 answers
  • Please help with my algebra homework and explain if you can
    15·1 answer
  • Let f(x) = x 7 and g(x) = x − 4. find f(x) ⋅ g(x).
    8·2 answers
  • Please answer this! I really suck at math and I need to do well.
    8·1 answer
  • The volume of a pyramid is 1/3 the volume of a prism ?<br> True<br> False
    9·1 answer
  • Write the equation of the line parallel to the given line p (2,-3) y=-6x+10
    9·1 answer
  • Please help me it's the lateral area of a cone along with the surface area
    7·1 answer
  • What is (5a2 − 3a + 8) + (−4a2 − 1) + (15a + 11) expressed in its simplest form?
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!