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charle [14.2K]
3 years ago
8

Robin works as a customer service representative. She knows that the

Mathematics
1 answer:
dimaraw [331]3 years ago
8 0

Answer:

multiply -1.25 x 12

Sense a negative and a positive will always be negative when dealing with multiplication you'll get -15

now -15 +651= 636

always take the sign of the biggest number.

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Simplify the expression 5+6i/4+6i<br> A) 56-6i/-20<br> B) -16-6i/-20<br> C)56-6i/52<br> D) -16-6i/52
IRISSAK [1]

Answer:

The\ simplified\ form\ of\ the\ \frac{5 + 6i}{4 + 6i}\ is\ \frac{56-6i}{52}.

Option (C) is correct .

Step-by-step explanation:

As the expression given in the question as follows.

= \frac{5 + 6i}{4 + 6i}

Now rationalize the expression.

= \frac{5 + 6i\times 4 - 6i}{4 + 6i\times 4 - 6i}

Using the formula

a² - b² = (a - b) (a + b)

Using in the above

= \frac{5 + 6i\times 4 - 6i}{(4)^{2} - (6i)^{2}}

= \frac{5\times 4-5\times 6i+6i\times 4-36\ i^{2}}{16 - 36(i)^{2}}

As i² = -1

= \frac{20-30i+24i+36}{16 + 36}

= \frac{56-6i}{52}

Therefore\ the\ simplified\ form\ of\ the\ \frac{5 + 6i}{4 + 6i}\ is\ \frac{56-6i}{52}.

Option (C) is correct .

8 0
3 years ago
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Please Help I need this ASAP. A street has 50 houses on each side, for a total of 100 houses. The addresses on the south side of
Iteru [2.4K]

Answer:

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Step-by-step explanation:


4 0
4 years ago
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(06.04 MC)What is the volume of four cubes with a side length of fraction 1 over 4 foot? V = s3, where s is the side length.
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s= side

so, vol = (1/4)^3 = 1 / 64

Now, there are 4 cubes:
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3 years ago
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faust18 [17]

Answer:

44.4

Step-by-step explanation:

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Sin40=x/69

x=69sin40

x=44.4 rounded from 44.352

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3 years ago
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Tresset [83]

jndendudendndjdjndjenjdejdnjnjendjendndndjejdnednedje.Step-by-step explanation:

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