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bogdanovich [222]

3 years ago

9

I understand 560-500 over 500. But why is it multiplied by 100?

1 answer:

cricket20 [7]3 years ago

7 0

To make it a percent, because when you find the answer, it will be given in a decimal. And to make the decimal a percent you have to multiply it by 100%

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The second answer bubble

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NeX [460]

The answer to 6 is repeating I believe

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Which numbers is 90 divisible by

SIZIF [17.4K]

1 x 90

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3 years ago

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Given that x = -2 - 3i and y = 4 + 2i , Match The Expressions.

shtirl [24]

Answer:

$3y-2x=16+12i$

$-3x \cdot y=6+48i$

$x \cdot 2y=-4-32i$

$x-y=-6-5i$

Step-by-step explanation:

Given:

$x=-2-3i$

$y=4+2i$

---

1st problem:

$3y-2x$

$3(4+2i)-2(-2-3i)$

Distribute:

$12+6i+4+6i$

Combine like terms:

$16+12i$

---

2nd problem:

$-3x \cdot y$

$-3(-2-3i) cdot (4+2i)$

$-3(-2-3i)(4+2i)$

Distribute -3 to first factor:

$(6+9i)(4+2i)$

Use foil to simplify:

$24+12i+36i+18i^2$

Replace $i^2$ with -1:

$24+48i-18$

Combine like terms:

$6+48i$

---

3rd problem:

$x \cdot 2y$

$(-2-3i) \cdot 2(4+2i)$

Distribute 2 to the second factor:

$(-2-3i) \cdot (8+4i)$

$(-2-3i)(8+4i)$

Use foil to simplify:

$-16-8i-24i-12i^2$

Replace $i^2$ with -1:

$-16-32i+12$

Combine like terms:

$-4-32i$

----

4th problem:

$(-2-3i)-(4+2i)$

Distribute:

$-2-3i-4-2i$

Combine like terms:

$-2-4-3i-2i$

Simplify:

$-6-5i$

6 0

3 years ago

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HELP ASAP!! BEST ANSWER GETS BRAINLY! pls only answer if u know the answer this is a test!

Natali [406]

Answer:

It's the fourth one y=-1/6x+2/3

Step-by-step explanation:

4 0

3 years ago