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
Montano1993 [528]
2 years ago
9

Please help. I’ll mark you as brainliest if correct!

Mathematics
1 answer:
Sergeu [11.5K]2 years ago
8 0

Answer:

a = 13

b = 0

Step-by-step explanation:

Conjugate of -3 + 2i is -3 - 2i

(-3 + 2i) (-3 - 2i)

We need to expand:

9 + 6i + -6i + -4i^2

-4i^2 =(-4)(-1) = 4

9 + 4 = 13

a = 13

b = 0

You might be interested in
Which of the following is the correct value for x
USPshnik [31]
(1) 5 is the answer
7 0
3 years ago
Write an equation of the line that passes through the point (3,-2) with slope -2.
Virty [35]

Answer:

y + 4 = -2(x - 3)

Step-by-step explanation:

Use the point-slope formula y - k = m(x - h).  Substitute -2 for k and 3 for h, as well as -2 for m:

y + 4 = -2(x - 3).

4 0
3 years ago
one number is four times as large as another if the numbers are added together the result is six less than seven times the small
liubo4ka [24]

Answer:

The numbers are 12 and 3.

Step-by-step explanation:

We can solve this problem by working with the information we have and setting up some equations.

We know that one number is four times as large as another. So, let the smaller number be represented by the variable x and the bigger number be represented by 4x, since it is four times as large.

Now, we know that if the numbers are added together, then the result is six less than seven times the smaller number. This can also be represented by the equation 4x + x = 7x - 6.

Let's solve that equation like so:

4x + x = 7x - 6\\5x =  7x - 6\\-2x = -6\\x = 3

So, the smaller number must be 3 (remember that x represented the smaller number). To find the bigger number, all we need to do is multiply 3 by 4, which gives us 12. Therefore, the numbers are 12 and 3.

4 0
3 years ago
Three oranges cost $1.35 at this rate how much do five oranges cost
ch4aika [34]

Step-by-step explanation:

4 0
2 years ago
Solve the equation.<br> a² = 100<br> Enter the correct answer in the boxes.<br> a = 10 or a = ?
Lyrx [107]
A = 10 or a = -10

When you square a number, you're essentially multiplying it by itself.

Recall that multiplying two negative numbers will result in a positive numbers. Knowing this, we know that -10 times -10 equals 100.
7 0
3 years ago
Other questions:
  • Please Help! I need help to my math question
    11·2 answers
  • The graph shows the price, in dollars, of different numbers of sweet breads at Alan's store. The table shows the price, in dolla
    8·1 answer
  • Percentage of change: 30 inches to 24 inches
    10·2 answers
  • Absolute value of -23/7
    15·1 answer
  • One step equation problems. Please solve j-3=3 what does j=
    5·2 answers
  • Evaluate the expression when: A=2, B=1, C=4<br> A+6/CB
    9·2 answers
  • What is 3/8 divided by (-2) ?
    11·1 answer
  • What type of symmetry?
    5·2 answers
  • For what values of x will make the following statement true?
    8·1 answer
  • Construct an equation that has k = 4 as its solution. Use k on both sides of the equation.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!