Ask question

Ask question

All categories

3 years ago

7

Hello, could someone answer this question for me please? simplify (1 + i) + (-2 + i).

1 answer:

Debora [2.8K]3 years ago

6 0

Answer:

- 1 + 2i

Step-by-step explanation:

Given

(1 + i) + (- 2 + i) ← remove parenthesis

= 1 + i - 2 + i ← collect like terms

= - 1 + 2i

You might be interested in

Noam must share a cash prize equally among 4 winners. If each person receives $125, what is the amount of the prize

sertanlavr [38]

Answer:

c. 500

Step-by-step explanation:

125+125=250

250+125=375

375+125=500

5 0

2 years ago

Read 2 more answers

In a certain clothing store, 4 shirts and 6 ties cost $70, and 2 shirts and 4 ties cost $42. What is the cost of each tie?

Oksanka [162]

Answer:

$7

Step-by-step explanation:

Your two equations are ...

4s +6t = 70
2s +4t = 42

Double the second equation and subtract the first:

2(2s +4t) -(4s +6t) = 2(42) -(70)

2t = 14 . . . . . simplify

t = 7 . . . . . . . divide by 2

The cost of each tie is $7.

3 0

3 years ago

How many pennies are in one-dollar??

OleMash [197]

Answer:

There are 100 pennies in one dollar.

Step-by-step explanation:

5 0

2 years ago

Which of the following is anot her way to write the expression 1/5 divided by 3

Andrei [34K]

Is there a picture or is that it

4 0

3 years ago

A stray dog ate 12 of your muffins. that was 3/10 of all of them! with how many did you start?

kolbaska11 [484]

Answer:

You started of with 84

4 0

2 years ago