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3 years ago

Can someone please help me?

Mathematics

1 answer:

charle [14.2K]3 years ago

8 0

9514 1404 393

Answer:

20%

Step-by-step explanation:

A pie chart is constructed so that the angle represents the ratio that sector has to the whole. Here, you want to know the fraction ...

English/Class = 72°/360° = 0.20 = 0.20×100% = 20%

20% of the students chose English.

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Answer:

Step-by-step explanation:

24-6=18

now 2022 so

2022-18=2004

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2 years ago

1. What is the value of the expression 8^–2?<br> a. -16<br> b. 1/64<br> c.1/16<br> d.64

AnnyKZ [126]

Your answer is
B. 1/64

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3 years ago

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Liula [17]

Answer:

24.27 cm

Step-by-step explanation:

sin 65 degrees = 22/x, so:

1 x

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sin 65 deg 22

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3 years ago

Please help me with number 7 :)

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3 years ago

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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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2 years ago