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3 years ago

It’s multiple choice , please help me !

Mathematics

1 answer:

ICE Princess25 [194]3 years ago

3 0

Answer: a, c, e explanation: I did that test and got 100%

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3 years ago

Adjust the number into correct standard form.<br> 2206×10^9

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Answer:

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Step-by-step explanation:

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3 years ago

Express sin A,cos A and tan A as ratios

OverLord2011 [107]

Answer:

Part A) $sin(A)=\frac{2\sqrt{42}}{23}$

Part B) $cos(A)=\frac{19}{23}$

Part C) $tan(A)=\frac{2\sqrt{42}}{19}$

Step-by-step explanation:

Part A) we know that

In the right triangle ABC of the figure the sine of angle A is equal to divide the opposite side angle A by the hypotenuse

$sin(A)=\frac{BC}{AB}$

substitute the values

$sin(A)=\frac{2\sqrt{42}}{23}$

Part B) we know that

In the right triangle ABC of the figure the cosine of angle A is equal to divide the adjacent side angle A by the hypotenuse

$cos(A)=\frac{AC}{AB}$

substitute the values

$cos(A)=\frac{19}{23}$

Part C) we know that

In the right triangle ABC of the figure the tangent of angle A is equal to divide the opposite side angle A by the adjacent side angle A

$tan(A)=\frac{BC}{AC}$

substitute the values

$tan(A)=\frac{2\sqrt{42}}{19}$

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3 years ago

Any number divisivble by 2 is also divisible by 8. Find a counter example to show that the conjecture is false.

Vladimir [108]

In the case of whole numbers, dividing 2 by itself would prove the conjecture false.

2/2 = 1

2/8 = 0.25

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3 years ago