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3 years ago

Solve the equation. 6 - x - x = 18

Mathematics

2 answers:

LUCKY_DIMON [66]3 years ago

6 0

6-x-x=18
-x-x=18-6
-x-x=12
-2x=12
x=12/-2
x=-6
Check: 6- (-6)- (-6) remember - - = +
So basically it's 6+6+6=18

vova2212 [387]3 years ago

4 0

X = -6
6 - -6 - -6 = 18

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Step-by-step explanation:

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Which equation is the equivalent form of 20(3)^5x = 820?

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Answer:

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3 years ago

If there are 680 calories in 8 oz of ground beef, how many

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Step-by-step explanation:

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2 years ago

Read 2 more answers

The formula for the area of a rhombus is A = a equals StartFraction one-half EndFraction d 1 d 2.d1d2, where d1 and d2 are the l

AlexFokin [52]

The two equivalent equations are d₁= 2a/d₂ and d₂= 2a/d₁ , Option 2 and 5 is the right answer.

<h3>What is a Rhombus ?</h3>

Rhombus is a quadrilateral with all the sides equal to each other.

It is given that d₁ and d₂ are the lengths of the diagonals.

and Area = a

a = (1/2) d₁ * d₂

2a = d₁ * d₂

d₁ * d₂ = 2a

It can be written as

d₁= 2a/d₂

a = (1/2) d₁ * d₂

d₁ * d₂ = 2a

d₂= 2a/d₁

Therefore Option 2 and 5 are the correct answer.

The options of this question are:

1. d₁=2Ad₂

2. d₁= 2A/d₂

3. d₂= d₁/2A

4. d₁= 2A/d₂

5. d₂= 2A/d₁

To know more about Rhombus

brainly.com/question/27870968

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2 years ago

Find the derivative of ln(cosx²).

RoseWind [281]

Answer:

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

General Formulas and Concepts:

<u>Calculus</u>

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:

<u>Step 1: Define</u>

<em>Identify</em>

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

<u>Step 2: Differentiate</u>

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

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