Answer:
2sin50 cos20
Step-by-step explanation:
We need to write sin (70) + sin(30) as a product. The formula used here is :

Here, A = 70 and B = 30
So,

So, the value of sin (70) + sin(30) is 2sin50 cos20. Hence, the correct option is (c).
Answer:
16 : 14 = 30 : 26.25
Step-by-step explanation:
If rounded:
16 : 14 = 30 : 26
Answer:
43.96m is the answer
Step-by-step explanation:
circumference of circle=2πr
=2*3.14*7
=43.96m
To solve this problem, start by plugging in your given n value.
This results in:
k = 100 - 4(60)
Next, simplify the parentheses by multiplying the -4 and the 60 together.
This leaves you with:
k = 100 - 240
To simplify for k, subtract 240 from 100 to get:
k = -140
So your final answer is k = -140 when n = 60
the thing is I can't see it prop ley:(