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3 years ago

Explain the polar form in mathematical terms ....... right answer will be mark as brainliest

Mathematics

2 answers:

yKpoI14uk [10]3 years ago

8 0

...................................

soldi70 [24.7K]3 years ago

5 0

The polar form of a complex number is another way to represent a complex number. The form is called the rectangular coordinate form of a complex number. The horizontal axis is the real axis and the vertical axis is the imaginary axis.

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Two gardeners can do the weekly yard maintenance in 8 minutes if they work together. The older gardener takes 12 minutes more th

weqwewe [10]

Answer:

Let x be the time taken( in minutes ) by younger gardener,

So, the one minute work of younger gardener = $\frac{1}{x}$

Also, the time taken by older gardener = (x+12) minutes ( given ),

So, the one minute work of older gardener = $\frac{1}{x+12}$

Total work done in one minute = $\frac{1}{x}+\frac{1}{x+12}$

Now, total time taken = 8 minutes,

Total work done in one minute = $\frac{1}{8}$

Thus,

$\frac{1}{x}+\frac{1}{x+12}=\frac{1}{8}$

$\frac{x+12+x}{x^2+12x}=\frac{1}{8}$

$\frac{2x+12}{x^2+12x}=\frac{1}{8}$

$16x + 96 = x^2+12x$

$x^2 -4x -96=0$

$x^2 - 12x + 8x - 96=0$

$x(x-12) + 8(x-12)=0$

$(x+8)(x-12)=0$

By zero product product property,

x + 8 =0 or x - 12 =0

⇒ x = -8 ( not possible ), x = 12

Hence, the time taken by younger gardener = 12 minutes,

And, the time taken by older gardener = 12 + 12 = 24 minutes.

6 0

3 years ago

Determine the value of each ratio, to four decimal points<br><br>a) cos 58°<br>b) tan 23°

Anvisha [2.4K]

Cos of 58 degree =0.5299

tan of 23 degree = 0.4244

5 0

3 years ago

Help quick pleaseee.........

Fofino [41]

Answer:

a) 341

b) 7243

c) 11018

d) 33000

8 0

3 years ago

A B C or D? please help

STALIN [3.7K]

Answer:

(x-1) and (x-5)

Step-by-step explanation:

option a .......

7 0

2 years ago

What is the inverse of f(x)=(-2x+2)/(x+7)?

Nana76 [90]

By applying the concept of the inverse of a function and <em>algebraic</em> handling, we conclude that the inverse of f(x) = (- 2 · x + 2)/(x + 7) is g(x) = (- 7 · x + 2)/(x + 2).

<h3>How to find the inverse of a function</h3>

In this question we have a <em>rational</em> function f(x) and finding its inverse consists in clearing x in terms of f(x). Prior any algebraic handling, we need to apply the following substitutions:

$x \to y$

$f(x) \to x$

$x = \frac{-2\cdot y + 2}{y+7}$

x · (y + 7) = - 2 · y + 2

x · y + 7 · x = - 2 · y + 2

2 · y + x · y = - 7 · x + 2

y · (2 + x) = - 7 · x + 2

$g(x) = \frac{- 7\cdot x + 2}{x + 2}$

By applying the concept of the inverse of a function and <em>algebraic</em> handling, we conclude that the inverse of f(x) = (- 2 · x + 2)/(x + 7) is g(x) = (- 7 · x + 2)/(x + 2).

To learn more on inverses: brainly.com/question/7181576

#SPJ1

4 0

2 years ago

Explain the polar form in mathematical terms ....... right answer will be mark as brainliest​

Explain the polar form in mathematical terms ....... right answer will be mark as brainliest