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2 years ago

Round each addend to the nearest whole number and estimate the sum.

1 answer:

8 0

Round each addend to the nearest whole number and estimate the sum.19.43 + 11.5 + 3.08
=> 19.43 = 19 nearest whole number
=> 11.5 = 12 Nearest whole number
=> 3.08 = 3 nearest whole number
=> 19 + 12 + 3 = 34 is the estimated whole number sum.

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3 years ago

given sin A =3/-/34 and that angle S is in quadrant 1, find the exact value of tan A in simplest radical form using a ration

Vedmedyk [2.9K]

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$\tan(A) = \frac{3}{5}$

Step-by-step explanation:

Given

$\sin(A) = \frac{3}{\sqrt {34}}$

$0 \le A \le 90$ --- First Quadrant

Required

Find tan(A)

The sin of an angle is:

$\tan(A) = \frac{Opposite}{Hypotenuse}$

and

$\sin(A) = \frac{3}{\sqrt {34}}$

By comparison:

$Opposite = 3$

$Hypotenuse = \sqrt{34$

So, the Adjacent is:

$Hypotenuse^2 = Adjacent^2 + Opposite^2$

$(\sqrt{34})^2 = Adjacent^2 + 3^2$

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Collect like terms

$Adjacent^2 =34 - 9$

$Adjacent^2 =25$

Take square roots

$Adjacent =\sqrt{25$

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This gives:

$\tan(A) = \frac{3}{5}$

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Answer:

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2 years ago

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