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3 years ago

Write the product in standard form. ( 9 + 5i)( 9 + 8i)

Mathematics

1 answer:

disa [49]3 years ago

8 0

<span>( 9 + 5i)( 9 + 8i)
= 9(9+8i)+5i(9+8i)
= 81+72i+45i+40i^2
= 81+117i+40(-1)
= 81-40+117i
= 41+117i. Answer</span>

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Taron unpacked 47 boxes of light bulbs for the discount warehouse. Each box contained 6 bulbs. How many bulbs were in the 47 box

Zolol [24]

Answer:

282 bulbs

Step-by-step explanation:

Find how many bulbs there were by multiplying 47 by 6

47(6)

= 282

So, in the 47 boxes, there were 282 bulbs

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3 years ago

Jen pours out 6 ounces of water from a full bottle. She estimates that she poured out 20% of the water in the bottle. About how

faust18 [17]

Answer:

30 ounces i think

Step-by-step explanation:

20% times 5 = 100%

6 in every 20%

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3 years ago

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3 years ago

Read 2 more answers

Which number line represents the solutions to 1-2x1 = 4?

kaheart [24]

Answer:

Third option: $x = -2$ and $x = 2$

Step-by-step explanation:

Given:

$|-2x|=4$

For a modulus function, if $|f(x)|=a$ , then,

$f(x)=\pm a$

Here, $f(x)=-2x$ , $a=4$

∴ $-2x=\pm 4\\ -2x=-4\textrm{ or } -2x=4\\ x=\frac{-4}{-2}\textrm{ or }x=\frac{4}{-2}\\ x= 2\textrm{ or }x=-2$

Therefore, the third option is the correct answer as the graph has $x$ values as -2 and 2

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3 years ago

Amanda teaches all of the bass and viola students. All of her classes have the same number of students. Each class has the great

alexandr402 [8]

Answer:

5 classes - 2 bass classes and 3 viola classes.

Step-by-step explanation:

Find the greatest common factor (GCF)

List the factors of 20 and 30:

20: 1, 2, 4, 5, 10, 20

30: 1, 2, 3, 5, 6, 10, 15, 30

The greatest factor that both numbers share is 10.

Therefore, there are 10 students in each class. So, she teaches 2 bass classes and 3 violas classes.

hope this helps! <3

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1 year ago