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rjkz [21]
3 years ago
6

I need help proving this ASAP

Mathematics
2 answers:
Tom [10]3 years ago
4 0
Hey sorry I can’t help but use Mathaway or Photomath to help!
Rama09 [41]3 years ago
3 0

Answer:

1 + tan²A = sec²A = 1/cos²A

2tan(X/2)/(1+tan²(X/2))

= 2tan(X/2)cos²(X/2)

= 2[sin(X/2)÷cos(X/2)]cos²(X/2)

= 2sin(X/2)cos(X/2)

= sin(X)

Because sin(2A) = 2sin(A)cos(A)

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The median and mean of these numbers:
aleksandr82 [10.1K]

Answer:

Mean : ≈ 12.7

Median: ≈ 13.5

Step-by-step explanation:

To find the mean you must add all the numbers and divide by the # of numbers in the set.

8+12+13+14+14+15 = 76

76/6 ≈ 12.7

To find the median you have to order the numbers from least to greatest, the middle number should be the median, but in this case two numbers are in the middle.

8, 12, 13, 14, 14, 15

So you have to add 14 and 13, which is 27.

Then divide by 2 which is ≈ 13.5

8 0
3 years ago
B. Construct Arguments Tom says his friends ate the same amount of vegetable pizza as pepperoni pizza. How could that be true?​
Alex_Xolod [135]

Answer:

ummmm sorry idgi

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
HELP ME PLZ
nadezda [96]

Answer:

BD does bisect the angle created by ABC, however it does not bisect segment AC. So it really depends on what you are determining the bisection to be.

Step-by-step explanation:

We can tell that it is bisecting the angle since it creates two congruent angles.

We can tell that it does not bisect the segment as AD and CD are not the same length.

5 0
3 years ago
Eleven more than two
Veronika [31]

Answer:13

Step-by-step explanation:

11+2=13

6 0
3 years ago
Question 1 help!? Asap
Paha777 [63]

Hi!

If the perimeter of the triangle is 41, then x is:

5x + 2 + 6x - 3 + 3x = 41

5x + 6x + 3x = 41 + 3 - 2

14x = 42

x = 42/14

x = 3

The x is 3.

7 0
3 years ago
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