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3 years ago

What is 1/5 of 11????????????

Mathematics

1 answer:

Helga [31]3 years ago

7 0

Multiply 1/5 by 11 to get 2.2, to check, multiply 2.2 by 5. The answer though, is 2.2.

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Find the derivative of ln(cosx²).

RoseWind [281]

Answer:

$\displaystyle \frac{dy}{dx} = -2x \tan (x^2)$

General Formulas and Concepts:

Calculus

Differentiation

Derivatives
Derivative Notation

Basic Power Rule:

f(x) = cxⁿ
f’(x) = c·nxⁿ⁻¹

Derivative Rule [Chain Rule]: $\displaystyle \frac{d}{dx}[f(g(x))] =f'(g(x)) \cdot g'(x)$

Step-by-step explanation:

Step 1: Define

Identify

$\displaystyle y = \ln (\cos x^2)$

Step 2: Differentiate

Logarithmic Differentiation [Derivative Rule - Chain Rule]: $\displaystyle y' = \frac{(\cos x^2)'}{\cos x^2}$
Trigonometric Differentiation [Derivative Rule - Chain Rule]: $\displaystyle y' = \frac{-\sin x^2 (x^2)'}{\cos x^2}$
Basic Power Rule: $\displaystyle y' = \frac{-2x \sin x^2}{\cos x^2}$
Rewrite [Trigonometric Identities]: $\displaystyle y' = -2x \tan (x^2)$

Topic: AP Calculus AB/BC (Calculus I/I + II)

Unit: Differentiation

8 0

2 years ago

How can a translation and a reflection be used to map ΔHJK to ΔLMN? Translate K to N and reflect across the line containing HJ.

Svet_ta [14]

Answer:

Translate K to N and reflect across the line containing JK.

Step-by-step explanation:

The rest of the question is the attached figure.

From the figure, we can deduce the following:

∠K = ∠N

JK = MN

HK = LN

So, N will be the image of K

By translating K to N, The segment JK will over-lap the segment MN,

Then, we need to reflect the point H across the the line containing JK to get the point L

So, the translation and a reflection that will be used to map ΔHJK to ΔLMN:

Translate K to N and reflect across the line containing JK. 

3 0

3 years ago

Read 2 more answers

PLEASE HELP: if √3 cos x - sin x = B cos(x+θ), show that b cosθ = √3 and b sin θ = 1

Lesechka [4]

Step-by-step explanation:

See attached image for proof

7 0

2 years ago

The table below shows the outputs y for different inputs x:

Bond [772]

A. this is not a function because x=1 has 2 outputs So does x=3

B . f(120) = 20 + 10*120 = 1220

This is the cost in dollars of renting a boat for 120 hours.

7 0

3 years ago

Which postulate proves that △JML and △JKL are congruent?

SIZIF [17.4K]

Answer is 1 SSS
hope it help you....
bcoz of in ∆jml and∆jkl
JM=JK(given)
MJ= KJ (given in figure)
and,LJ=LJ (common)
so , criteria 1 is correct sss

3 0

3 years ago

Read 2 more answers