3 years ago

Multiply (2 -10i) (-5 + 3i) Show each step for credit!

Mathematics

1 answer:

jonny [76]3 years ago

5 0

Answer:

The answer is

Step-by-step explanation:

(2 -10i) (-5 + 3i)

Using FOIL multiply each term in the first bracket by the terms in the second <u>bracket</u>

That's

2(-5) + 2(3i) - 10i(-5) - 10i(3i)

<u>Multiply the numbers and simplify</u>

We have

- 10 + 6i + 50i - 30i²

From the rules of imaginary numbers

So we have

- 10 + 56i - 30(- 1)

- 10 + 56i + 30

Simplify

30 - 10 + 56i

We have the final answer as

Hope this helps you

You might be interested in

If a tank is losing water at a unit rate of 8/1 (gallons/hours), how many

kaheart [24]

Answer:

2 Gallons.

Step-by-step explanation:

If 8 gallons are lost in one hour, then 4 will be lost in 30 minutes. Half of thirty minutes is 15 minutes, and half of 4 is 2.

6 0

3 years ago

the cooler at a softball game holds 5 quarts of sports drink. how many cups of sports drink does the cooler hold

Leno4ka [110]

Answer: 20 cups :DD

Step-by-step explanation:

7 0

3 years ago

Write the equation for the inverse of y=4arccot(

garri49 [273]

I think you meant "y = 4 arccot (x)."

This is equivalent to:

y
---- = arccot x
4

and so cot (y/4) = x

8 0

3 years ago

Lacy has a $1000 bond with a 6.2% coupon that she purchased for $1025. What is the yield of this bond? Round your answer to 2 de

Ede4ka [16]

So the question is asking what is 6.2% of 1000? Then rounding our decimals?

4 0

3 years ago

Read 2 more answers

Write a point slope form of the line that passes through (6,1) and it is parallel to a line with a slope of -3

Dafna1 [17]

Answer:

Step-by-step explanation:

y - 1 = -3(x - 6)

8 0

3 years ago