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lorasvet [3.4K]
2 years ago
7

Write the product (4 + i)(4 − i) in the form a + bi.

Mathematics
2 answers:
yawa3891 [41]2 years ago
3 0

Answer:16- i^2

Step-by-step exp

foil

Kay [80]2 years ago
3 0

Answer:

17

Step-by-step explanation:

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You have $83 in your bank account each week you plan to deposit eight dollars from your allowance and $15 from your paycheck the
docker41 [41]
We know that you have 83$ in your bank account.

Okay so what is 15+8=23 So that means you get 23$ per week.

Now what is 83+23=106
106+23=129
129+23=152
152+23=175
Now that was four 23's


That means it would take 4 weeks for you to have 175 dollars in your bank account.
Hope this helped.
7 0
2 years ago
Decimal 0.003 is 1/10 of
Grace [21]
Just multiply the 0.003 by 10 and you'll get the result. The easiest way to multiply such numbers is to move the dot one position to the right (it would be 2 positions if multiplied by 100, 3 by 1000 etc.). You can do the same with dividing, just remember to move to the left then.

So 0.03 is your answer

<span>Hope I Helped!!!</span>
6 0
2 years ago
What is the perimeter of this shape... Captionless Image
vampirchik [111]

Answer:

The shape is not there so i can not solve it

Step-by-step explanation:

6 0
3 years ago
Could someone please help? They don’t need to be solved I just need help with the translating.
Lorico [155]

Answer:

I won't solve i'll translate like you asked

Step-by-step explanation:

13) x - 5 = 21

14) 12 × y = 48

15) b + 10 = 13

If you want I can solve.

HOPE THIS HELPED

5 0
3 years ago
If you were to use the substitution method to solve the following system, choose the new equation after the expression equivalen
alexandr1967 [171]

The new equation after the expression equivalent to x from the first equation is substituted into the second equation is: 2(-4y-9)+5y=-6

Step-by-step explanation:

We will solve the initial steps for substitution method for finding the correct answer

Given equations are:

x+4y = -9\ \  \ \ Eqn1\\2x+5y=-6\ \ \ Eqn2

From equation one

x+4y = -9\\x+4y-4y = -9-4y\\x = -4y-9

Putting x = -4y-9 in equation 2

2(-4y-9)+5y=-6

Hence,

The new equation after the expression equivalent to x from the first equation is substituted into the second equation is: 2(-4y-9)+5y=-6

Keywords: Linear equations, variables

Learn more about linear equations at:

  • brainly.com/question/726990
  • brainly.com/question/725998

#LearnwithBrainly

6 0
3 years ago
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