3 years ago

Given that sin 28° ≈ 0.469, enter the cosine of a complementary angle.

Mathematics

1 answer:

Lena [83]3 years ago

4 0

Answer:

29 i think not sure ill reach back to you if i find a positive answer

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Viktor [21]

Answer:

Desmond's spinner.

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3 years ago

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given a rectangular has a length of 58.5 m and widht of 45 m. Draw a diagram with scake if givrn scale drawing is 1 cm:9m

Vera_Pavlovna [14]

Answer:

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Step-by-step explanation:

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3 years ago

A parachutist descends 80 feet in 5 seconds. Express the rate of the parachutist change in height as a unit rate

denis23 [38]

80 ft in 5 sec = 80 ft/ 5 sec = 16 ft/ 1 sec

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3 years ago

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Simplify the left side of equation so it looks like the right side. cos(x) + sin(x) tan(x) = sec (x)

uranmaximum [27]

Step-by-step explanation:

Consider LHS

$\cos(x) + \sin(x) \tan(x) = \sec(x)$

Apply quotient identies

$\cos(x) + \sin(x) \times \frac{ \sin(x) }{ \cos(x) } = \sec(x)$

Multiply the fraction and sine.

$\cos(x) + \frac{ \sin {}^{2} (x) }{ \cos(x) } = \sec(x)$

Make cos x a fraction with cos x as it denominator.

$\cos(x) \times \cos(x) = \cos {}^{2} (x)$

$\frac{ \cos {}^{2} (x) }{ \cos(x) } + \frac{ \sin {}^{2} (x) }{ \cos(x) } = \sec(x)$

Pythagorean Identity tells us sin squared and cos squared equals 1 so

$\frac{1}{ \cos(x) } = \sec(x)$

Apply reciprocal identity.

$\sec(x) = \sec(x)$

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3 years ago

If f(x)=-x+2, find f(4)

pickupchik [31]

Answer:

f(4)=-2

Step-by-step explanation:

f(4)=-4+2=-2

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3 years ago