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4 years ago

How do we multiply numbers

1 answer:

7 0

To multiply a number, simply take a number (Let's say 4) and another number (Let's say 3). If you multiply 4 by 3, you are simply taking the number 4, and adding it to itself 3 times (4 + 4 + 4).

I hope this makes sense, please tell me if you need some more information.

Hope this helps!

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What is y-5=x in slope intercept form

ICE Princess25 [194]

Y=x+5. add 5 to both sides

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Help........Betty wants to bake the perfect cookie. She wants to determine the ideal temperature at which to bake the cookies. S

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3 years ago

The shortest known adult woman is about 24 inches tall and tallest known adult woman is about 92 inches tall. Write an absolute

Travka [436]

Given 2 numbers, a and b. The number exactly in the middle of a and b is $\displaystyle{ \frac{a+b}{2}}$ .

For example, the number exactly in the middle of numbers 5 and 17 is (5+17)/2=22/2=11.

Check: 11-5=6, 17-11=6

The number in the middle of 24 and 92 is (92+24)/2=116/2=58.

The positive difference between 58 and both 24 and 92 is :

58-24 = 34 & 92-58 = 34

Thus the height of a woman x, can vary at most 34, from 58. That is the height of a woman can be 34 ft less or more than 58.

In absolute value notation this is expressed as :

|x-58|≤34

what this means is that

x-58≤34 or 58-x≤34

so x≤58+34 or -x≤34-58

x≤92 or -x≤-24, that is x≥24

Answer: |x-58|≤34 ; 24≤x≤92

6 0

3 years ago

Please help me

Hitman42 [59]

By using algebra properties and trigonometric formulas we find that the trigonometric expression $\frac{1}{1 - \sin x} - \frac{1}{1 + \sin x}$ is equivalent to the trigonometric expression $\frac{2\cdot \tan x}{\cos x}$ .

<h3>How to prove a trigonometric equivalence by algebraic and trigonometric procedures</h3>

In this question we have trigonometric expression whose equivalence to another expression has to be proved by using algebra properties and trigonometric formulas, including the fundamental trigonometric formula, that is, cos² x + sin² x = 1. Now we present in detail all steps to prove the equivalence:

$\frac{1}{1 - \sin x} - \frac{1}{1 + \sin x}$ Given.

$\frac{1 + \sin x - 1 + \sin x}{1 - \sin^{2}x}$ Subtraction between fractions with different denominator / (- 1) · a = - a.

$\frac{2\cdot \sin x}{\cos^{2}x}$ Definitions of addition and subtraction / Fundamental trigonometric formula (cos² x + sin² x = 1)

$\frac{2\cdot \tan x}{\cos x}$ Definition of tangent / Result

By using algebra properties and trigonometric formulas we conclude that the trigonometric expression $\frac{1}{1 - \sin x} - \frac{1}{1 + \sin x}$ is equal to the trigonometric expression $\frac{2\cdot \tan x}{\cos x}$ . Hence, the former expression is equivalent to the latter one.

To learn more on trigonometric equations: brainly.com/question/10083069

#SPJ1

4 0

2 years ago