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Nookie1986 [14]
2 years ago
13

Z^2 + 2z + 5 , when z = 2 , z^2 is "z squared

Mathematics
1 answer:
OverLord2011 [107]2 years ago
3 0

Answer:

=13

Step-by-step explanation:

=2^2+2×2+5

=4+4+5

=8+5

=13

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Identify the underlined place in 83.5851. Then round the number to that place. The 8 to the right is underlined.
Marina86 [1]
We have to round the number 83.5851 to the nearest hundredth.
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8 0
3 years ago
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Cos 0 = 12/13. Find sin 0.<br> A. 5/12<br> B. 12/5<br> C. 13/12<br> D. 5/13
andreyandreev [35.5K]

Answer:

Sine θ = 5/13

Step-by-step explanation:

From the question given above, the following data were obtained:

Cos θ = 12/13

Sine θ =?

Next, we shall determine the opposite. This can be obtained as follow:

Cos θ = Adjacent /Hypothenus

Cos θ = 12/13

Adjacent = 12

Hypothenus = 13

Opposite =?

Hypothenus² = Opposite² + Adjacent²

13² = Opposite² + 12²

169 = Opposite² + 144

Collect like terms

169 – 144 = Opposite²

25 = Opposite²

Take the square root of both side

Opposite = √25

Opposite = 5

Finally, we shall determine the Sine θ. This can be obtained as follow:

Opposite = 5

Hypothenus = 13

Sine θ =.?

Sine θ = Opposite / Hypothenus

Sine θ = 5/13

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3 years ago
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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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step 2

Divide by \pi d^2 both sides

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