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
Alla [95]
3 years ago
11

Which of the following expressions is equal to -3x^2-12?

Mathematics
1 answer:
bixtya [17]3 years ago
4 0

Answer:

The answer is (-3X+6i)(x+2i)

Step-by-step explanation:

You can do this by plugging in the answers in the equations and get that (-3x+6i)(x+2i) equals the following expression.

You might be interested in
Today is the birthday of Rahul and he is 3 times
Marat540 [252]

Answer:

b. 36 years

Step-by-step explanation:

Today

Nirmala = x years

Rahul = 3x years

In 13 years

Nirmala = 3x + 13 years

Rahul = 2(x+13) - 1

3x + 13 = 2(x+13) - 1

3x + 13 = 2x + 26 - 1

3x + 13 = 2x + 25

3x - 2x = 25 - 13

x = 12

Nirmala = x years

= 12 years

Rahul = 3x years

= 3(12)

= 36 years

The age of Rahul today is 36 years

5 0
3 years ago
20 more than the product of a number n and five​
PtichkaEL [24]

Answer:

5n + 20

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
Two numbers multiply to be -7 and add to be -6. What are the numbers?<br><br> Example; 2,3
rewona [7]

<u>Given</u>:

Let the two numbers be x and y.

Two numbers multiply to be -7 and add to be -6.

This can be written in equation as,

xy=-7 and

x+y=-6

<u>Value of the two numbers:</u>

Let us determine the value of the two numbers using substitution method.

Substituting y=-6-x in the equation xy=-7, we get;

x(-6-x)=-7

Simplifying, we get;

       -6x-x^2=-7

   x^2+6x-7=0

(x+7)(x-1)=0

x=-7, 1

Thus, the values of x are x = 1,-7

When x = 1 , the equation x+y=-6 becomes y=-7

When x = -7, the equation x+y=-6 becomes y=1

Therefore, the two numbers are 1 and -7

3 0
3 years ago
Which equation describes the circle having center point (3,7) and the radius r=4 in Standard form
Annette [7]

The equation of circle in standard form is (x - 3)^2 + (y - 7)^2 = 16

<h3><u>Solution:</u></h3>

Given that circle having center point (3,7) and the radius r = 4

To find: equation of circle in standard form

<em><u>The equation of circle is given as:</u></em>

(x - h)^2 + (y - k)^2 = r^2

Where center (h,k) and radius r units

Given that center point (h , k) = (3, 7) and radius r = 4 units

Substituting the values in above equation of circle,

(x - 3)^2 + (y - 7)^2 = 4^2\\\\(x - 3)^2 + (y - 7)^2 = 16

Thus the equation of circle in standard form is (x - 3)^2 + (y - 7)^2 = 16

6 0
3 years ago
Calculus help, I am trying to do this questions.. someone teach me please 10 points
Nutka1998 [239]

Answer:

Step-by-step explanation:

5 0
2 years ago
Other questions:
  • For each 90mm of coloured fabric Paul uses to make his curtains, he also uses 10cm of white fabric. Express the amount of white
    10·1 answer
  • What is one sixth of 24
    9·2 answers
  • Find the area of the composite figure <br> A) 27km2<br> B)36km2<br> C)45km2<br> D)54km2
    5·2 answers
  • PLEASE JUST CHECK IT OUT AND TRY YOUR BEST TO ANSWER. I WILL DEFINITELY AWARD BRAINLIEST :)
    15·1 answer
  • WHY CAN'T ANYONE HELP ME PLEASE? THANKS! A student at a university makes money by buying and selling used cars. Charles bought a
    12·1 answer
  • Please help me thank you
    12·1 answer
  • Someone pleaseee help me on this :( what is the slope of the line that contains these points.
    15·2 answers
  • Helps please this is due soon
    12·1 answer
  • K is between P and Q. Suppose PQ- 10x - 16, PK - 6x + 8, and KQ-8. What is PQ?
    5·1 answer
  • Lucy made $132 for 11 hours of work.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!