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3 years ago

Answer with A B C D. Correct answer gets brainlest.

Mathematics

2 answers:

Zepler [3.9K]3 years ago

7 0

Answer:

512

Step-by-step explanation:

8^3

This means multiply 8 together 3 times

8*8*8

512

Soloha48 [4]3 years ago

6 0

Answer:

Step-by-step explanation:

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Christian and Yong had some stickers in the ratio 2:3. After Yong gave Christian 15 stickers, the ratio became 5:7. What was the

Snezhnost [94]

Answer:

15:23

step-by-step explanation:

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3 years ago

Which of the following are identities? Check all that apply

Natasha2012 [34]

Answer:

A, C

Step-by-step explanation:

Actually, those questions require us to develop those equations to derive into trigonometrical equations so that we can unveil them or not. Doing it only two alternatives, the other ones will not result in Trigonometrical Identities.

Examining

A) True

$\frac{1-tan^{2}x}{2tanx} =\frac{1}{tan2x} \\ \frac{1-tan^{2}x}{2tanx} =\frac{1}{\frac{2tanx}{1-tan^{2}x}}\\ tan2x=\frac{1-tan^{2}x}{2tanx}$

Double angle $tan2\alpha =\frac{1 -tan^{2}\alpha }{2tan\alpha}$

B) False,

No further development towards a Trig Identity

C) True

Double Angle Sine Formula $sin2\alpha =2sin\alpha *cos\alpha$

$sin(8x)=2sin(4x)cos(4x)\\2sin(4x)cos(4x)=2sin(4x)cos(4x)$

D) False No further development towards a Trig Identity

$[sin(x)-cos(x)]^{2} =1+sin(2x)\\ sin^{2} (x)-2sin(x)cos(x)+cos^{2}x=1+2sinxcosx\\ \\sin^{2} (x)+cos^{2}x=1+4sin(x)cos(x)$

7 0

4 years ago

Read 2 more answers

For all values of x and y, which expression is equivalent to 8x + 6y? A) 2(4x + 3y) B) 2x + 3y C) 3(4x + 2y) D) 4(2x + 3y)

Reika [66]

The answer would be 2(4x + 3y) cause the 2 gets multiplied by the numbers in the parentheses so 2x4x = 8x and 2x 3y = 6y

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3 years ago

Describe pattern below. 8,12,16,20,24,28

otez555 [7]

Answer: Goes up by 4s

Step-by-step explanation:

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3 years ago

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Find the value of x.<br> (5x-11)<br> V<br> (3x - 7)º

svlad2 [7]

Answer:

1222222+1222222

Step-by-step explanation:

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4 years ago