Answer:
The correct prove will be:
Step-by-step explanation:
Multiply and Divide by 
= 
⇒ Let 
= Ф and 7Ф = 
= sin2Ф sin3Ф sin5Ф ÷ 2cosФ
= 1/2(2sin2Фsin5Ф)sin3Ф ÷ 2cosФ
= (cos3Ф - cos7Ф) sin3Ф ÷ 4cosФ
= 1/2(2cos3Ф sin3Ф) ÷ 4cosФ ∵cos7Ф = 0
= sin6Ф ÷ 8cosФ
= sin(7Ф - Ф) ÷ 8cosФ
= (sin7ФcosФ - cos7ФsinФ) ÷ 8cosФ ∵sin7Ф = 1
= cosФ ÷ 8cosФ
= 1/8
Hence, The correct prove will be:
Keywords: prove, sinФ, cosФ
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Answer: x=15
Step-by-step explanation:
B and C make sense to me.
Answer:
2
Step-by-step explanation:
|-6+8|
Add/subtract the numbers: -6 + 8 = 2
= |2|
Apply the absolute value rule: |a| = a, a ≥ 0
= 2
Answer:
b = 40 - p
42b + 52p = 350
Step-by-step explanation:
Given : No. of small blue pom-pom boxes = b
No. of large orange pom-poms = p
cost of 1 box of blue pom pom = $42
cost of one large orange pom-pom box = $52
Solution:
Since we are given that the company has only 40 boxes
⇒b+p=40
⇒b=40-p
Since cost of 1 box of blue pom pom = $42
So, cost of b box of blue pom pom = $42b
Since,cost of one large orange pom-pom box = $52
So,cost of p large orange pom-pom box = $52p
We are also given that the company plan to make $350
⇒42b+52p=350
Hence Option b is correct
b = 40 - p
42b + 52p = 350
