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
baherus [9]
3 years ago
11

Help, please! Struggling!

Mathematics
1 answer:
MArishka [77]3 years ago
6 0

Answer:

65

Step-by-step explanation:

(4-7i)(4+7i) =16 + 28i-28i -49i^2 ➡16 - 49i^2

16 + 49 = 65

the fault here is i^2= -1 and -1 multiplied by -49 is +49 not -49

You might be interested in
Which equation could be represented by 5 divided by 1/2 = 10
kkurt [141]

Answer:

Step-by-step explanation:

Here's what you write:

    5

---------- = 5(2/1) = 5(2) = 10

  (1/2)

7 0
3 years ago
Read 2 more answers
Cans of lemonade and packets of crisps were bought for the school disco in the ratio 3:2. The organiser bought 120 cans of lemon
koban [17]
120 dived by 3 multiplied by 2 is equal to 80 packs of crisps 
4 0
3 years ago
write an equation for a line that is parallel to line that passes through the points (5,5),(-1,3) and contains the point (-6,-8)
dimaraw [331]
Since the two lines are parallel then they have the same slope which = 1/3

since the line passes through (-6 , -8)

y+8 = (1/3)(x+6)

3y + 24 = x + 6

x - 3y = 18 is the equation
8 0
3 years ago
cual es la diferencia entre el ingreso por aportaciones y el gasto por pago de beneficios para cada año
Elan Coil [88]
The differences are 
2000 119
2010 176
2020 154
2030 -436

Due to the small size data set, it would not be appropriate to predict future years unless some proven method applicable to this case is used.

Please note that this size functions strictly in English.  There is no guarantee that your next question in other languages will be answered.  You could try the Spanish section if you have difficulty working in English.
4 0
4 years ago
Show work, please!
jolli1 [7]
Let's try this.
First, we have the absolute value of -4(-2)-8, or the absolute value of 8-8, so 0.
Let's forget about that, now. It's 0, it adds no value. Let's not worry about it.
For the next, we see the absolute value of -1-(-2)^2
Or:
-1-4, or -5.
Next is 2(-2)^2, or 2(4) = 8.
Therefore, we have -5+8 =3.
If you see any errors, let me know.
Otherwise, I hope this helps!
6 0
3 years ago
Other questions:
  • Alan bought 20 yards of fencing. He used 5.9 yards to surround one flower garden and 10.3 yards to surround another garden. Writ
    12·1 answer
  • How do you make this??
    13·1 answer
  • Wilson bought fruit that weighs 2 and 1 over 2 pounds. How many ounces does the fruit weigh?
    7·2 answers
  • Question 8,9 answer them fast plz
    15·1 answer
  • Help in maths question!
    8·2 answers
  • Question: Solve the system by the substitution method. y = -4x - 10 2x + 5y = -14
    11·1 answer
  • Plz help and explain
    7·2 answers
  • 3. In the figure, c || d. What are the measures<br> of 1 and 2
    11·1 answer
  • Suppose you draw 8 cards out of a well-shuffled deck of 52 cards, and one-by-one with re-placement, consider X as the number of
    6·1 answer
  • 2/x+3/y=9/x;4/x+9/y=21/xy(x=0,y=0)​
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!