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3 years ago

Who can help me answer this question ASAP please and thank you please show work

Mathematics

1 answer:

kotegsom [21]3 years ago

4 0

I'll do the first one to get you started

So we have g(f(x)) which means that we start with g(x) and replace the 'x' with 'f(x)' to get g(f(x))

g(x) = ( x - 4 )/2

g(f(x)) = ( f(x) - 4)/2 .... replace every x with f(x)

g(f(x)) = (2x+4-4)/2 .... replace f(x) on the right side with 2x+4

g(f(x)) = (2x+0)/2

g(f(x)) = (2x)/2

g(f(x)) = 1x/1

g(f(x)) = 1x

g(f(x)) = x

Let me know if you need help with the other one.

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There is a circle with a center of 0,0 on a coordinate plane. There is one point on the circle's circumference in which the x:y

Fofino [41]

Answer:

(3, 1)

Step-by-step explanation:

A circle with radius √10 and centre at (0, 0) will have a point (3, 1) on its circumference.

8 0

3 years ago

Yea lol how do u do this

seropon [69]

Hello!!

So what they are giving you is the x,y coordinate of the terminal side of an angle. Meaning 4,10 is the point x=4 and y= 10.
So if we have that, then we can solve for the quadrant that the angle falls in. So for two positive values it tells us it falls in quad 1.

So we have x and y so now use x^2+y^2=h^2 to solve for hypotenuse.

So we get h=sqrt(4^2+10^2)= sqrt(116) or 2*sqrt(29).

Now knowing our trig identities.
Sin= y/h
Cos=x/h
Tan=y/x
Csc=h/y=1/sin
Sec=h/x=1/cos
Cot=x/y=1/tan

So now we have
X=4 Y=10 H=2*sqrt(29)

Now we just use the above identities and plug and chug for your answers. Doing the same one point(4,10)
Sin=10/2*sqrt(29)= (5*sqrt(29))/29
Cos=4/2*sqrt(29)= (2*sqrt(29))/29
Tan=10/4=5/2
Sec=2*sqrt(29)/10= sqrt(29)/5
Csc=2*sqrt(29)/4= 2*sqrt(29)/2
Cot=4/10= 2/5

Now do the same thing as above for all sets of your questions.

Hope this helps!! Any questions please just ask! Thank you so much!

3 0

3 years ago

12 rounded to the nearest tenth in between 167

Alex777 [14]

0 dude it's 0. I know now you know.

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if there are two angles that are supplementary,and the first angle has a measure of 137, what is the measure of the second angle

zvonat [6]

Answer:

43°

Step-by-step explanation:

supplementary angles sum to 180° , then

second angle + 137° = 180° ( subtract 137° from both sides )

second angle = 43°

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THE ANSWER IS C IF I RECALL DOING THIS

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