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AnnyKZ [126]
3 years ago
12

Need help with this please. Given the following functions: f(u)=tan(u) and g(x)=x^9. Find:

Mathematics
1 answer:
melisa1 [442]3 years ago
3 0
You have
.. f'(u) = sec(u)^2
Putting in u = g(x) = x^9, this becomes
.. f'(g(x)) = sec(x^9)^2


You know
(f(g(x))' = f'(g(x))*g'(x) . . . . . chain rule
From previous results, this is
.. sec(x^9)^2*9x^8
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(will give brainliest) find the value of x
Sedaia [141]

Answer:

x = 180 - [(180 - 3x) + (180 - 2x)]

Step-by-step explanation:

Start off by finding the angles of the triangle

Angle F = 180 - 3x

The angle across from I (which I will call I) = 180 - 2x

Angle G = 180 - (F + I)

Now that we know what G is, we know what x is because the Alternate Exterior Angles Theorem states that if a pair of parallel lines are cut by a transversal, then the alternate exterior angles are congruent. So pretty much X = G

Therefore x =  180 - (F + I) or otherwise said as:

x = 180 - [(180 - 3x) + (180 - 2x)]

I hope this is helpful :)

5 0
3 years ago
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A circular rug has a circumference of 18.84 feet. What is the area of the rug?
bija089 [108]

Step-by-step explanation:

18.84/2= 9.42/3.14 = 3 times 3 = 9 times 3.14 = 28.26

answer is 28.26

sorry if i get it wrong this is how i remember finding it. Im very sure this is how it is

5 0
3 years ago
Find the percent of change.<br> 90 miles to 60 miles
MaRussiya [10]

Answer:

it would be 33.3% change

Step-by-step explanation:        

(60-90) divide by 90 and then X 100         Which equals 33.3%

7 0
3 years ago
A store is having a 20% off sale. The sale price of an item with price p is p – 0.2p. What is an equivalent expression?
GuDViN [60]
If it is 20% off, then ur actually paying 80%
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3 0
3 years ago
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If c= the number of cars in a parking lot, which algebraic expression
DIA [1.3K]

Answer:

Option C) c+9 is correct

The sum of the number of cars and 9=c+9 is correct algebraic expression representation for given phrase

Step-by-step explanation:

Given that c=the number of cars in a parking lot.

The phrase given is "the sum of the number of cars and 9"

To find the algebraic expression which represents the given phrase :

The algebraic expression to the given phrase is c+9

That is option C) c+9 is correct

The sum of the number of cars and 9=c+9 is correct algebraic expression representation for given phrase

5 0
4 years ago
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