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3 years ago

The two triangles below are similar. What is the similarity ratio of ΔABC to ΔDEF?

Mathematics

2 answers:

Aleonysh [2.5K]3 years ago

7 0

Answer:

Panda28panda is correct.

Step-by-step explanation:

C) 2:1

Evgesh-ka [11]3 years ago

5 0

It would be a 2:1 ratio because sides AC and DF are 8:4 which simplifies to 2:1

Hope this helps!

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slava [35]

Answer:

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Step-by-step explanation:

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3 years ago

Which shows all the exact solutions of sin^2 x + 3cos x - 1 = 2?

Zarrin [17]

Answer:

x = 2k $\pi$ is the solution of this equation.

Step-by-step explanation:

This question is related to trigonometric equations.

The given equation is,

$sin^{2} x + 3cos x - 1 = 2$

We have to find the solutions of this equation.

Put $sin^{2}x = 1 - cos^{2}x$

$1 - cos^{2}x$ + 3cosx - 1 = 2

$cos^{2}x -3cosx+2$ = 0

For this equation only cosx = 1 is possible solution.

Cosx = 1 happens when x is a multiple of 2 $\pi$

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3 years ago

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Kisachek [45]

4x^2-16x+12 is the answer.

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4 years ago

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Oxana [17]

The correct answer is: 19.39

Explanation:

Given numbers:

22.10, 13.45, 25.10, 17.20, 19.10

Total numbers = 5

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Now to find the average of the given sequence, follow these steps:

Step-1:

Add all the numbers to get the total sum:

22.10 + 13.45 + 25.10 + 17.20 + 19.10 = 96.95

Step-2:

Divide 96.95 by 5 to get the average number:

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4 years ago