Your answer is C c:
First, split the angle into two angles where the values of the six trigonometric functions are known. In this case, 105, can be split into 45+60 (cos (45+60))
Use the sum formula for cosine to simplify the expression. The formula states that cos (A+B) = - (cos (A) cos (B) + sin (A) sin (B)).
The exact value of cos(60) is 1/2. So multiply 1/2 to cos (45) - sin (60) times sin (45).
The exact value of cos (45) is the square root of 2 over 2
(1/2) ⋅ (<span>√2/</span>2) - sin (60) <span>⋅ sin (45)
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Value of sin (60) is <span>√3/2
</span>(1/2) ⋅ (√2/2) - √3/2 ⋅ sin (45)
exact value of sin (45) is √2/2
(1/2) ⋅ (√2/2) - √3/2 ⋅ √2/2
all that equals √2/4 - √6/4
Answer:
300
Step-by-step explanation:
30 * 10 = 300
Answer:
1.50.
Step-by-step explanation:
.20×7.50=1.50
the total cost now will be 9.00
Answer:
I think it is SAS.
Step-by-step explanation:
To solve this, you must determin variables.
Elliot=x
Amelia=5x-13
Then, you must do the sum of those two variables equals the number of cans. Therefore,
5x-13+x=257
6x-13=257
6x=257-(-13)
6x=270
x=270÷6
x=45
