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3 years ago

Help finding the missing length

Mathematics

1 answer:

gulaghasi [49]3 years ago

3 0

Answer:

4x2-6x+6

Step-by-step explanation:

(9x2-2x) +(3x-5)+(m) =13x2-5x+1

(13x2-5x+1)-(9x2+x-5)=m

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1/4 2/10 correct comparison answer

lubasha [3.4K]

Not exactly

2/10 = .2
1/4 = .25

1/4 is 0.05 bigger than 2/10

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3 years ago

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What is 1/9 (2m - 16) = 1/3 (2m +4)

Serjik [45]

Answer:

-7

Step-by-step explanation:

Hope it helped!

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3 years ago

Read the text and question, and choose the option with the correct answer to the question. —Felipe, ¿cuándo celebras el día del

san4es73 [151]

Answer:

Alemania / Germany

Step-by-step explanation:

Clearly the text refers to Germany (Alemnia). Felipe will celebrate a holiday with his german family (familia alemana)

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3 years ago

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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]: $\displaystyle y' = -2x \tan (x^2)$