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3 years ago

If f ( x ) = 3 - i and g ( x ) = 4i,

Mathematics

1 answer:

klemol [59]3 years ago

3 0

Answer:

$f(x)g(x) = (3 - i)(4i) \\ = 12i - 4 {i}^{2} \\ = \boxed{12i + 4 }\\ remember \:the \: value \: of \: {i}\: is \: \sqrt{ - 1} \\ and \: {i}^{2} \: is - 1 \\ d. (4 + 12i)\: is \: the \: right \: answer.$

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Jennys room is 13 feet long and 12 feet wide, Ruth's room is 14 feet long and 11 feet wide, whose room has the greater area?

meriva

Answer:

Jenny's room

Step-by-step explanation:

13x12 = 156 and 14x11 = 154

Therefore Jenny's room is bigger.

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2 years ago

127.5 is 250% of what?

Inga [223]

Your answer is 127.5 is 250% of 51

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3 years ago

Can anyone help me with 15a b c

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3 years ago

Which statements are true about these lines? Select three options.

Evgen [1.6K]

Answer:

Line sw has an underfined slope

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Step-by-step explanation: I got it right on my quiz

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2 years ago

Read 2 more answers

Area of trapezoids <br>find the area

Zinaida [17]

Answer:

Area of the trapezoid = $6cm^2$

Step-by-step explanation:

Area of a trapezoid:

(1/2)*Sum of parallel opposite sides +Distance between the parallel sides

Parallel sides are: 2 cm and 4 cm

Distance between the parallel sides is 2 cm

Area of the trapezoid:

$=\frac{1}{2}*(2+4)*2\\\\=\frac{1}{2}* 6*2\\\\=\frac{12}{2}\\\\ =6cm^2$

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3 years ago