Step 1: extract common factor 5ab
The result is already factored into its prime polynomials so
the answer is:5ab(ab-6).You can verifiy that when you expand the product using the distributive property you ge the original polynomial 5a^2b^2 - 30ab.
The equation 9cos(sin¯¹(x)) = √(81 – 81x²) is true since L.H.S = R.H.S
To answer the question, we need to know what an equation is
<h3>What is an equation?</h3>
An equation is a mathematical expression that show the relationship between two variables.
Given 9cos(sin¯¹(x)) = √(81 – 81x²), we need to show L.H.S = R.H.S
So, L.H.S = 9cos(sin¯¹(x))
= 9[√{1 - sin²(sin¯¹(x)}] (Since sin²y + cos²y = 1 ⇒ cosy = √[1 - sin²y])
9[√{1 - sin²(sin¯¹(x)}] = √9² × √{1 - sin²(sin¯¹(x)}]
= √[9² × {1 - sin²(sin¯¹(x)}]
= √[81 × {1 - sin²(sin¯¹(x)}]
= √[81 × {1 - x²}] (since sin²(sin¯¹(x) = [sin(sin¯¹(x)]² = x²)
= √(81 – 81x²)
= R.H.S
So, the equation 9cos(sin¯¹(x)) = √(81 – 81x²) is true since L.H.S = R.H.S
Learn more about equations here:
brainly.com/question/2888445
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Answer:
escribi en español para poder ayudarte
A cause she measured the side of it
Answer:
p must be less than 100
Step-by-step explanation:
Let
c ----> the cost in dollars to clean the stream
p ----> percent of the stream
we have
Remember that the cost cannot be a negative number
and
the denominator cannot be a zero
so
Solve for p
Multiply by -1
Adds 100 both sides
therefore
p must be less than 100
