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3 years ago

Whats the answer for this question

Mathematics

1 answer:

patriot [66]3 years ago

7 0

A. 11%
1st add up all the amounts given to find total monthly budget. then divide groceries by total budget.

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by what approximate factor is the intensity of an earthquake with the magnitude 5.4 greater than an earthquake with magnitude 5.

erica [24]

1.26 girl im going back from the test and answering all questions

8 0

3 years ago

Read 2 more answers

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

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4 0

2 years ago

Why is a table proportional?

krek1111 [17]

Determining whether two quantities are in a proportional relationship. Decide whether two quantities are in a proportional relationship, e.g., by testing for equivalent ratios in a table or graphing on a coordinate plane and observing whether the graph is a straight line through the origin.

5 0

3 years ago

using 3.14 for pi what is the volume to the nearest tenth of a cone that has a height of 17 meters and a base with a radius of 6

Veronika [31]

V≈ 640.9 rounded from (640.88)

V=πr^2 h/3

6 0

3 years ago

What principal will earn the interest rs.750 in 3 year at the rate of 10% per year .

otez555 [7]

P = (I * 100)/(TR)

= 750*100 /3*10

75000/30

Rs 2500

4 0

3 years ago