3 years ago

To solve 1/3 divided by 9 James thinks of dividing a loaf of bread

Mathematics

2 answers:

garri49 [273]3 years ago

8 0

Answer:

it would be 0.3 with bar notation

Step-by-step explanation:

ValentinkaMS [17]3 years ago

7 0

Answer:

1/ 27

Step-by-step explanation:

Hope it helps

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Which of the following is a solution of the inequality 0.75n + 1.5 < 59.25

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Answer:

b.77

Step-by-step explanation:

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0.75n < 57.75

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2 years ago

True or false: the equation tan^2x+1=sec^2x

zhenek [66]

ANSWER

True

EXPLANATION

The given trigonometric equation is:

${ \tan}^{2} x + 1 = { \sec}^{2} x$

We take the LHS and simplify to arrive at the RHS.

${ \tan}^{2} x + 1 = \frac{{ \sin}^{2} x}{{ \cos}^{2} x} + 1$

Collect LCM on the right hand side to get;

${ \tan}^{2} x + 1 = \frac{{ \sin}^{2} x + {\cos}^{2} x}{{ \cos}^{2} x}$

This implies that

${ \tan}^{2} x + 1 = \frac{1}{{ \cos}^{2} x} .$

${ \tan}^{2} x + 1 = {( \frac{1}{ \cos(x) }) }^{2}$

${ \tan}^{2} x + 1 = { \sec}^{2} x$

This identity has been verified .Therefore the correct answer is true.

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