Answer:
When you say b 5, do you mean b+5?
Step-by-step explanation:
I believe your answer would be 240
but im not 100% sure
because a triangle equals up to 360 so 120-360= 240
Let x be the page number then x+1 would be the other page number (because the pages are two facing pages which means they follow on consecutively)
Then
(x)(x+1) = 156
x^2 + x - 156 = 0
x = 12 or x = -13( but x can't be a negative number)
so x = 12
and the next page is 13
The area of a triangle with a length of 3.2m and a width of 1.5m is
4.8m
Three values of x that would result in y = cot x being undefined are 
Given :
y=cot(x)
we need to find where cot(x) is undefined
We know that 
when the denominator is 0 then we can say cot(x) is undefined
Lets find out x values that makes sin(x) as 0
We know that sin(0)=0

x values values that makes sin(x)=0 are 
These x values makes the denominator of cot(x) as 0 and it is undefined
So , three values of x that would result in y = cot x being undefined are 
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