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Zielflug [23.3K]
3 years ago
14

No one ever answers my questions pls i need help

Mathematics
1 answer:
chubhunter [2.5K]3 years ago
4 0
Okay what do u need???????
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Identify the "inside function" u = f(x) and the "outside function" y = g(u). Then find dy/dx using the Chain Rule.
skad [1K]
DfLet f(x)=\sec x and g(x)=\sqrt x. Then

y=\sec\sqrt x=\sec(g(x))=f(g(x))=f\circ g(x)

By the chain rule,

\dfrac{\mathrm dy}{\mathrm dx}=\dfrac{\mathrm dy}{\mathrm du}\dfrac{\mathrm du}{\mathrm dx}

where u=g(x)=\sqrt x, so that y=f(g(x))=f(u)=\sec u. We have

\dfrac{\mathrm du}{\mathrm dx}=\dfrac1{2\sqrt x}
\dfrac{\mathrm d\sec u}{\mathrm du}=\sec u\tan u

and so

\dfrac{\mathrm dy}{\mathrm dx}=\sec u\tan u\dfrac{\mathrm dy}{\mathrm du}=\dfrac{\sec\sqrt x\,\tan\sqrt x}{2\sqrt x}
5 0
3 years ago
36in rounded to the nearest tenth for circumference
WITCHER [35]

Answer: Remember that the tens place is two moves to the left of the decimal point (if it exists). To round to the nearest ten (nearest 10), we use the whole numbers place to determine whether the tens place rounds up or stays the same.

Solution steps:

Step 1: Locate and underline the tens place () and look to digit to the right (6):

36

Step 2: In this case, the digit to the right 6 is 5 or above. So, we add 1 to the tens place (). The digit(s) after the (6) are dropped. Thus, we get 40 as answer.

In short: 36 rounded to the nearest tens is 40.

Step-by-step explanation:

8 0
2 years ago
Question 1 of 10
AURORKA [14]

Answer:

the answer is going to be b

6 0
3 years ago
The ratio of the same side angles of two parallel lines is 1:14. Find all angles.
Oksanka [162]
The angles that lie at the same side of parallel lines are known to be always supplement of each other. This means that when we add them together, the value is 180°. If we let x be the common factor for the measures of the angle, the equation that we could use to determine the answer is,
 
                x + 14x = 180°

The value of x from the equation is 12. Hence, the angles are,
       
              x = 12
            14(12) = 168

Answer: 12° and 168°
5 0
3 years ago
Please answer question ASAP! Use the triangle below to determine which of the following statements are true. (The answer choices
vagabundo [1.1K]
Choice A is true. This is the Pythagorean identity. One of the most fundamental trig identities you should memorize.

Choice B is false. Let A = 60 and B = 30 and you'll see the left hand side turn into 0.5 while the right hand side turn into -0.5

Choice C is true. This is a variation of the identity tan^2+1 = sec^2 (just subtract tan^2 from both sides)

Choice D is true as this is a more complicated variation of 1+tan^2 = sec^2
7 0
3 years ago
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