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den301095 [7]
3 years ago
7

What is 10 1/2 dived by 2 1/4

Mathematics
2 answers:
notsponge [240]3 years ago
7 0

Answer:

4 and 2/3 in fraction form and 4.6 in decimal form

Step-by-step explanation:

I promise this is correct. A calculator doesn't lie :)

Hope this helps :)

Have a great day!!

Schach [20]3 years ago
5 0

Answer:

4 2/3

Step-by-step explanation:

10 1/2 = 21/2

2 1/4 = 9/4

(21/2)/(9/4) = (21/2) * (4/9)

84/18 = 4 and 2/3

four and two thirds

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KATRIN_1 [288]
<h3>Answer:  4</h3>

Start at 6 on the y axis. Draw an arrow so that it horizontally moves to the blue curve. Then draw an arrow straight down to vertically drop to x = 4

See the diagram below.

Follow this process in reverse to see that x = 4 leads straight up to the blue curve, and then to the left to land on y = 6. Keep in mind that the inverse reverses the input and output process, which is why I started with y instead of x.

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4 years ago
Find a formula for dy/dx if sin x + cos y + sec(xy) = 251
Lena [83]

Answer:

\displaystyle \frac{dy}{dx} = \frac{-cos(x) - ysec(xy)tan(xy)}{-sin(y) + xsec(xy)tan(xy)}

General Formulas and Concepts:

<u>Pre-Algebra</u>

Distributive Property

<u>Algebra I</u>

  • Factoring

<u>Calculus</u>

Derivatives

Derivative Notation

Derivative of a constant is 0

Trig Differentiation

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

Implicit Differentiation

Step-by-step explanation:

<u>Step 1: Define</u>

<em>Identify</em>

sin(x) + cos(y) + sec(xy) = 251

<u>Step 2: Differentiate</u>

  1. [Implicit Differentiation] Trig Differentiation [Chain Rule]:                             \displaystyle cos(x) - sin(y)\frac{dy}{dx} + sec(xy)tan(xy) \cdot (y + x\frac{dy}{dx}) = 0                      
  2. [Subtraction Property of Equality] Isolate  \displaystyle \frac{dy}{dx}  terms:                                     \displaystyle -sin(y)\frac{dy}{dx} + sec(xy)tan(xy) \cdot (y + x\frac{dy}{dx}) = -cos(x)
  3. [Distributive Property] Distribute sec(xy)tan(xy):                                            \displaystyle -sin(y)\frac{dy}{dx} + ysec(xy)tan(xy) + xsec(xy)tan(xy)\frac{dy}{dx} = -cos(x)
  4. [Subtraction Property of Equality] Isolate  \displaystyle \frac{dy}{dx}  terms:                                     \displaystyle -sin(y)\frac{dy}{dx} + xsec(xy)tan(xy)\frac{dy}{dx} = -cos(x) - ysec(xy)tan(xy)
  5. Factor out  \displaystyle \frac{dy}{dx}:                                                                                                   \displaystyle \frac{dy}{dx}[-sin(y) + xsec(xy)tan(xy)] = -cos(x) - ysec(xy)tan(xy)
  6. [Division Property of Equality] Isolate  \displaystyle \frac{dy}{dx}:                                                      \displaystyle \frac{dy}{dx} = \frac{-cos(x) - ysec(xy)tan(xy)}{-sin(y) + xsec(xy)tan(xy)}

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

Unit: Implicit Differentiation

Book: College Calculus 10e

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Please mark as brainliest! <3

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