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2 years ago

Find the value of f(-7)

Mathematics

1 answer:

Reika [66]2 years ago

5 0

Answer:

-7

Step-by-step explanation:

Look at picture body :\

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Use long division to find a repeated decimal equivalency for the fraction. Upload all of your work as part of your final answer.

Kay [80]

You would divide 8 by 9, because the is inside the bracket division sign.
Hope this helps!

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2 years ago

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Find the 30th term of the following sequence. 1, 7, 13, 19, ...

postnew [5]

Answer:

175

Step-by-step explanation:

a30 = a1 + f × (n-1)

f= difference between numbers

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2 years ago

Evaluate cos(sin^-1(4/5)

PSYCHO15rus [73]

Step-by-step explanation:

$Let \: \: \theta = \sin^{ - 1} (\frac{4}{5}) \\ \\ \therefore \: \sin\theta = \frac{4}{5} \\ \\ \because \: { \cos}^{2} \theta =1 - { \sin}^{2} \theta \\ \\ \therefore \: { \cos}^{2} \theta = 1 - (\frac{4}{5} )^{2} \\ \\ = 1 - \frac{16}{25} \\ \\ = \frac{25 - 16}{25} \\ \\ = \frac{9}{25} \\ \\ \therefore \:{ \cos}\theta = \pm \: \frac{3}{5} \\ \\ \because \: \theta \: lie \: in \: the \: first \: quadrant \\ \\ \therefore \: { \cos}\theta = \: \frac{3}{5} \\ \\ \implies \theta = { \cos}^{ -1 } \: \frac{3}{5}\\\\\implies \theta = { \cos}^{ -1 } \: \frac{3}{5}= { \sin}^{ -1 } \: \frac{4}{5} \\ \\ \therefore \: \cos( \ {sin}^{ - 1} \frac{4}{5} ) \\ \\ = \cos( \ {cos}^{ - 1} \frac{3}{5} ) \\\\ = \frac{3}{5} \\ \\ \purple{ \boxed{\therefore \: \cos( \ {sin}^{ - 1} \frac{4}{5} ) = \frac{3}{5}}}$

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2 years ago

Use the drop-down menu to create true statements. If the graph of an inverse passes the , you know that the inverse is a functio

Bumek [7]

Answer:

1) vertical-Line test

2)y=x

3)x

4)domain

Step-by-step explanation:

3 0

2 years ago

Seven times a number is the same as 12 more than 3 times the number

Brums [2.3K]

Answer:

x=3

Step-by-step explanation:

7x=12+3x

4x=12

x=3

5 0

2 years ago