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3 years ago

С Which inequality is true? 8 9 O 510 0.13 8 5 8 5 072

Mathematics

1 answer:

yanalaym [24]3 years ago

6 0

Answer:

0.72

Step-by-step explanation:

it doesn't exist

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Prove that 1/1+sinA -1/1+sinA =2tanAsinA

enyata [817]

Step-by-step explanation:

$\frac{1}{1 + \sin( \alpha ) } \frac{1}{1 - \sin( \alpha ) } \\ \frac{1 - \sin( \alpha ) + 1 + \sin( \alpha ) }{(1 + \sin( \alpha ))(1 - \sin( \alpha )) } \\ = \frac{2}{1 - {sin}^{2} \alpha } \\ \frac{2}{ {cos}^{2} \alpha } = 2 \: {sec}^{2} \alpha$

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3 years ago

If angle a measures 64 then what does angle b measure?

Naddik [55]

Answer:

b = 26°

Step-by-step explanation:

a ; b = complementary =>

a + b = 90° } => b = 90° - 64° = 26°

a = 64°

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3 years ago

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3 years ago

Plot (25/3) and (42/3) on the number line.

ss7ja [257]

Answer:

Refer to the Attachment

Step-by-step explanation:

Rewriting the fractions in decimal and whole number, we have the following:

$\frac{25}{3} = 8\frac{1}{3} = 8.3$

$\frac{42}{3} = 14$

Thus, 42/3 is on 14 and 25/3 is on 8 and then add 1/3 from 8 going to 9.

Therefore, the points must be plotted as follows:

The blue point indicates the 42/3 while the red point indicates the 25/3.

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3 years ago