3 years ago

What is true about the complex number -5 - 5i?

Mathematics

1 answer:

Svetlanka [38]3 years ago

7 0

Answer:

B: quadrant 3

D: 5sqrt2

Step-by-step explanation:

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Write an expression to represent ( 2 times the difference of t and 11 )

Ierofanga [76]

2(t-11) would be the answer i think

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Zeus Industries bought a computer for $2207. It is expected to depreciate at a rate of 27% per year. What will the value of the

shepuryov [24]

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3 years ago

$10,000 compounded every 2 years with a 10% interest rate. How much will this be worth in 10 years

Anon25 [30]

$110,000

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3 years ago

Find the size of angle xyz give your answer to 3 significant figures

KengaRu [80]

Answer:

68.2°

Step-by-step explanation:

This is a right triangle, so we can use SIN,COS,TAN to solve for the angle.

We want ∠YXZ

THe side opposite to the angle is given as 20

The side adjacent to the angle is given as 8

Which trig ratio relates "opposite" and "adjacent"??

It is Tan!!

Thus, we can write:

$Tan(\angle YXZ)=\frac{20}{8}\\Tan(\angle YXZ)=\frac{5}{2}\\Tan(\angle YXZ)=2.5\\\angle YXZ = ArcTan(2.5)\\\angle YXZ = 68.2$

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3 years ago

Please help me with #83

Roman55 [17]

Answer:

a. 7.54385 in^2

Step-by-step explanation:

surface area equation = 3.14 * r^2

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x=3.14 (1.55^2)

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3 years ago

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