3 years ago

Find the domain of f(x) = 3x for the range {-7, -1, 3, 11}. =

Mathematics

1 answer:

Sergeeva-Olga [200]3 years ago

3 0

Answer: i dont know

Step-by-step explanation:

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3 years ago

If sec theta = - √30 / 3, find cos theta.<br> if sin(-theta) = -0.97, find cos (π/2 - theta).

Cloud [144]

Step-by-step explanation:

$\cos \theta = \frac{1}{ \sec\theta } = - \frac{3}{ \sqrt{30} } = - \frac{3 \sqrt{30} }{30} = - \frac{ \sqrt{30} }{10}$

$\cos( \frac{\pi}{2} - \theta )= \cos \frac{\pi}{2} \cos \theta + \sin \frac{\pi}{2} \sin \theta$

Note that

$\sin( - \theta) = - \sin \theta$

$\cos \frac{\pi}{2} = 0 \: \: \: \: \: \sin \frac{\pi}{2} = 1$

Therefore,

$\cos( \frac{\pi}{2} - \theta ) = 0.97$

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3 years ago

What is the product of 7/8 x 4/7

DIA [1.3K]

Answer:

1/2

Step-by-step explanation:

7x4= 28

8x7= 56

simplify: 28/56=1/2

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3 years ago

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antiseptic1488 [7]

Answer:

Step-by-step explanation:

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3 years ago

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MrRissso [65]

Answer:

A gene carries the <u>information</u> for a trait.

Step-by-step explanation:

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3 years ago