Which expressions are equivalent to the given expression?
Please help :(

-51 - 6*i

Step-by-step explanation:

Remember that if N is a positive number, then:

√(-N) = √N*i

Now we have the equation:

(-√9 + √(-4)) - (2*√576 + √-64)

We can use the first relation and rewrite this as:

(-√9 + √(4)*i) - (2*√576 + √64*i)

Now, all the square roots in the equation are easy ones, like:

√9 = 3

√4 = 2

√64 = 8

√576 = 24

So if we replace these in our equation, we get:

(-3 + 2*i) - (2*24 + 8*i)

-3 + 2*i - 48 - 8*i

Now we group the terms with "i" and the terms without "i"

(-3 - 48) + (2*i - 8*i) = -51 - 6*i

Then the correct option is: -51 - 6*i

answer: a and c are correct

step-by-step explanation:

the +5 is the vertical translation

the added negative symbol in front is the reflection over the y-axis

$450.00 for 6 weeks

or

$300

step-by-step explanation:

$200.00 for first week $50.00 x5 equals $250 plus $200 equals $450.00 for six weeks.

$200 for first week

$200 x 0.10 = $20

$20 x 5 = $100

$200 + $100 = $300