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3 years ago

Multiply 3i(−1 + 2i). What is the simplified version written in standard form, a + bi, where a and b are real numbers?

1 answer:

4 0

3i (- 1 + 2i) Remove the brackets.
3i (-1) + (2i)(3i) Look at the first set of brackets around the -1
-3i + 6i^2 But i^2 = - 1[ I hope that's the way you are using it]
-3i - 6 or -6 - 3i or -3(2 - i) <<<<< answer

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I need help with this 70―10=―10+40

ozzi

Answer:

I got 90

Please correct me If I am wrong Please and Thank You

Step-by-step explanation:

Combine like terms 70 and 10 which will be 60

and Combine like terms and you get 30

Then you add 60+30= 90

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2 years ago

Read 2 more answers

Will give brainliest. Water flows back and forth between a small and large tank. When water is moving into a tank the flow rate

Monica [59]

Answer:

B. The flow rate of the large tank is –10 gal/min, and the flow rate of the small tank is 10 gal/min.

Step-by-step explanation:

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2 years ago

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PLEASE HELP !!!!!!!!!!

umka21 [38]

Answer:

3 quarters

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Step-by-step explanation:

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2 years ago

Solve 0= 2t^3-21t^2+ 40t

sukhopar [10]

$0=2t^3-21^2+40t$
switch sides
$2t^3-21t^2+40t=0$
solve factoring
$t(t-8)(2t-5)=0$
using the zero factor principle
$t=0
$
solve
$t-8=0:t=8$
solve
$2t-5=0:t= \frac{5}{2}$
$t=0,t=8,t= \frac{5}{2}$
Hope this helps

4 0

3 years ago

What is the common difference between the elements of the arithmetic sequence below?

Tanya [424]

<h3> - - - - - - - - - - - - - ~<u>Hello There</u>!~ - - - - - - - - - - - - - </h3>

➷ -22.5 - (-18) = -4.5

-27 - (-22.5) = -4.5

The common difference is 4.5

➶Hope This Helps You!

➶Good Luck :)

➶Have A Great Day ^-^

↬ Hannah ♡

7 0

3 years ago