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timofeeve [1]
2 years ago
8

lass="latex-formula">
​
Mathematics
1 answer:
allochka39001 [22]2 years ago
5 0

Step-by-step explanation:

Sin(A+B) = Sin A Cos B + Cos A Sin B.

Sin 75 = Sin ( 45 + 30) = Sin 45 Cos 30 + Cos 45 Sin 30. Sin 75 = (1 / √2) ( √3 / 2) + (1 / √2) ( 1 / 2) = [ √3 + 1] / 2√2.

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Two angles in a triangle measure 102 degrees and 67 degrees. What is the measure of the third angle?
Nat2105 [25]

Answer:

11 degrees

Step-by-step explanation:

The sum of the interior angles of a triangle is 180 degrees.

From 180 degrees we subtract the sum of 102 degrees and 67 degrees, obtaining 11 degrees (first answer choice)

3 0
3 years ago
(Need Help ASAP (Willing to give 10 points for 1 question)
True [87]

Answer:

a) -2 and 4

b) function 2

Step-by-step explanation:

a)

rate of change is rise over run: change in y / change in x.

function 1:

- i will use first 2 pairs of data

- change in y: 5 - 3 = 2

- change in x: -2 - (-1) = -1

-rate of change = 2/-1 = -2

function 2:

- same idea, but find two points on the graph!

- (0,4) and (-1,0) for example! pick easy points

- change in y is 4. chabge in x is 1

- rate of change is 4

b)

function b has greatest rate of change. 4 > -2

5 0
2 years ago
Round 3308.89 to the nearest australian dollar
const2013 [10]
Round 3308.89 to the nearest Australian dollar - $4336 AUD .
3 0
3 years ago
What is negative 9/14 plus 2/7
Sedaia [141]
Find the LCD of  9/14 and 2/7. LCD is 14.

Make the denominators(bottom numbers) the same as the LCD(14)

Simplify. Now denominators are same and even

Join the denominators so make it into -9 + 4 / 14

Now simplify it lastly

Answer: 5/-14.
4 0
2 years ago
stickers are made with the same ratio of width to length. a sticker 2 inches has a length of 6 inches. complete the table​
Furkat [3]
The answer is 2 x10 = 20
To the power of b which is 15
4 0
2 years ago
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