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3 years ago

Multiply. −4i(2−i) Enter your answer in the box.

Mathematics

2 answers:

Misha Larkins [42]3 years ago

8 0

$-4i(2-i)=-8i+4i^2=\boxed{-4-8i}$

Semmy [17]3 years ago

4 0

Answer:

-8i+4i

Step-by-step explanation:

distibutive property

-4i x 2 = -8i

-4i x -i = 4i

-8i+4i

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Given the Arithmetic series A1+A2+A3+A4

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Answer:

$S _{19} = 760$

Step-by-step explanation:

$a1 = 13 \\ a2 = 16 \\ d = a2 - a1 = 16 - 13 = 3 \\ d = 3 \\ a _{n} = l = 67 \\$

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$a _{n} = a + (n - 1) \times d \\ 67 = 13 + (n - 1) \times 3 \\ 67 = 13 + 3n - 3 \\ 67 - 13 + 3 = 3n \\ 57 = 3n \\ 3n = 57 \\ \\ n = \frac{57}{3} \\ \\ n = 19$

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3 years ago

A one-year membership to Metro Gym costs $460. There is a fee of $40 when you join, and the rest is paid monthly. Write an equat

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Answer: See explanation

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Let the amount of money to be paid per month be represented by x. The information given in the question can then be formed into an equation as:

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From the equation, the amount that'll be paid monthly will be:

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3 years ago

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