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Flura [38]
3 years ago
9

Find the exact value.

Mathematics
1 answer:
mezya [45]3 years ago
4 0
Check the picture below

bear in mind the symmetry identities, cos(-θ) = cos(θ)

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Evaluate................
wolverine [178]

Answer:

h(8q²-2q) = 56q² -10q

k(2q²+3q) = 16q² +31q

Step-by-step explanation:

1. Replace x in the function definition with the function's argument, then simplify.

h(x) = 7x +4q

h(8q² -2q) = 7(8q² -2q) +4q = 56q² -14q +4q = 56q² -10q

__

2. Same as the first problem.

k(x) = 8x +7q

k(2q² +3q) = 8(2q² +3q) +7q = 16q² +24q +7q = 16q² +31q

_____

Comment on the problem

In each case, the function definition says the function is not a function of q; it is only a function of x. It is h(x), not h(x, q). Thus the "q" in the function definition should be considered to be a literal not to be affected by any value x may have. It could be considered another way to write z, for example. In that case, the function would evaluate to ...

h(8q² -2q) = 56q² -14q +4z

and replacing q with some value (say, 2) would give 196+4z, a value that still has z as a separate entity.

In short, I believe the offered answers are misleading with respect to how you would treat function definitions in the real world.

7 0
3 years ago
Some helppppp!!!!! I’m having trouble
USPshnik [31]
Answer:

1.4*40=56cm, DVD’s he has

1.4*3=4.2cm

56+4.2=60.2cm, whoops too much. So instead 1.4*2= 2.8cm, 56+2.8=58.8cm Is Your Answer.
3 0
3 years ago
Read 2 more answers
Solve for x using the property of bisected<br> diagonals<br> CN=20 ln=6x-2
kari74 [83]

Answer:

Step-by-step explanation:

abc

6 0
3 years ago
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How many kilobytes are in a megabyte if a kilobyte is 10^3 and a megabyte is 10^6
malfutka [58]

Answer:

1000 KB

Step-by-step explanation:

There are 1000 KB in 1 MB as 10^6 divided by 10^3 is 10^3 which is 1000. Hope it helps! It has been 25 minutes, but here is your answer!

5 0
3 years ago
Please help me?i don’t want to fail
Kobotan [32]

Answer:

8.

<u>9y-3y=6</u>

-4x-(-5x)=1

the slope is 6

9.

you start at the 0 axis and go up 3 on the y.Once you did that you want to go up 2 on the y axis then 3 to the right on the x axis,then go up 2 then 3 to the right.

Step-by-step explanation:

8 0
2 years ago
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