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3 years ago

What is equivalent to -2i(6-7i)

Mathematics

1 answer:

borishaifa [10]3 years ago

5 0

Answer:

-14 - 12i

Step-by-step explanation:

Apply complex arithmetic rule: (ai)(b + ci) = -ac + abi

a = 2, b = 6, c = -7

-( -2(-7) + 2*6i )

-( 14 + 12i)

-14 - 12i

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Infiniti sells 8 different models of cars, with 5 different trim levels and 5 color choices. What is the total amount of options

solniwko [45]

Answer:

200

Step-by-step explanation:

Infiniti sells 8 different models of cars, with 5 different trim levels and 5 color choices.

Now, 8 different models of cars with 5 different trim levels have (8 × 5) = 40 choices.

Similarly, with 8 different models of cars, with 5 different trim levels and 5 color choices, there will be total (40 × 5) = 200 options one could choose. ( Answer )

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3 years ago

Find the volume of this solid.

bija089 [108]

Answer:

Step-by-step explanation:

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3 years ago

What is the product?

Sphinxa [80]

Answer:

[6 12 2]

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[0 6 2]

Step-by-step explanation:

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2 years ago

Which system of equation should you use to solve this problem

Alex17521 [72]

Last option is the correct answer.

Step-by-step explanation:

Given that

Let x stand for the solution a and y stand for the solution B

So,

According to statement that

30 gallons have to be made

$x+y=30$

Solution A contains 29 percent bromine => 0.29x

Solution B contains 53 percent =>0.53y

And the mixture of 30 gallons contains 45% bromine

$0.29x+0.53y=30*0.45\\0.29x+0.53y=13.5$

Following equations will be used for solving the problem

$x+y = 30\\0.29x+0.53y=13.5$

Hence,

Last option is the correct answer.

Keywords: Equations, Variables

Learn more about linear equations at:

#LearnwithBrainly

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3 years ago

Can you please do the mean median mode and range for this chart please.

AlexFokin [52]

Median: 9

Mode: 9&11

Range: 11

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3 years ago