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Wewaii [24]
3 years ago
6

Record the letter of each graph with the given characteristic​

Mathematics
1 answer:
kupik [55]3 years ago
5 0

Answer:

Determine whether a relation represents a function.

Find function values.

Determine whether a function is one-to-one.

Use the vertical line test to identify functions.

Graph the functions in the library of functions.

Step-by-step explanation:

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Tan(2 sin^-1 0.4)<br> Find the Exact value
stiv31 [10]

Answer:

tan(2u)=[4sqrt(21)]/[17]

Step-by-step explanation:

Let u=arcsin(0.4)

tan(2u)=sin(2u)/cos(2u)

tan(2u)=[2sin(u)cos(u)]/[cos^2(u)-sin^2(u)]

If u=arcsin(0.4), then sin(u)=0.4

By the Pythagorean Identity, cos^2(u)+sin^2(u)=1, we have cos^2(u)=1-sin^2(u)=1-(0.4)^2=1-0.16=0.84.

This also implies cos(u)=sqrt(0.84) since cosine is positive.

Plug in values:

tan(2u)=[2(0.4)(sqrt(0.84)]/[0.84-0.16]

tan(2u)=[2(0.4)(sqrt(0.84)]/[0.68]

tan(2u)=[(0.4)(sqrt(0.84)]/[0.34]

tan(2u)=[(40)(sqrt(0.84)]/[34]

tan(2u)=[(20)(sqrt(0.84)]/[17]

Note:

0.84=0.04(21)

So the principal square root of 0.04 is 0.2

Sqrt(0.84)=0.2sqrt(21).

tan(2u)=[(20)(0.2)(sqrt(21)]/[17]

tan(2u)=[(20)(2)sqrt(21)]/[170]

tan(2u)=[(2)(2)sqrt(21)]/[17]

tan(2u)=[4sqrt(21)]/[17]

7 0
3 years ago
7/8*16/21<br><br> i need help
Pavlova-9 [17]

Answer:

\frac{7}{8}   \times  \frac{16}{21}  =  \frac{2}{3}

Step-by-step explanation:

this is the answer.hope this helps you

6 0
3 years ago
Read 2 more answers
Kevin is 3 times as old as Daniel. 4 years ago, Kevin was 5 times as old as Daniel. How old is Kevin now?
marishachu [46]
He might be 6 now.

hope this helped :)

plzz tell me if I was wrong
8 0
3 years ago
Read 2 more answers
PLEASE HELP!!! I REWARD BRAINLIEST! I NEED HELP ASAP!
zimovet [89]

Answer:

1?

Step-by-step explanation:

I think its one...

6 0
2 years ago
Read 2 more answers
Find the measure of one interior angle in a<br>regular 27-gon.<br>​
Whitepunk [10]

Answer:

13 1/3°

Step-by-step explanation:

Divide 360° (full circumscribed circle) by 27.  

There will be 27 identical interior angles, each measuring 13 1/3°

8 0
3 years ago
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