Answer:
Step-by-step explanation:
Given that:
The differential equation; 
The above equation can be better expressed as:

The pattern of the normalized differential equation can be represented as:
y'' + p(x)y' + q(x) y = 0
This implies that:



Also;


From p(x) and q(x); we will realize that the zeroes of (x+2)(x-2)² = ±2
When x = - 2






Hence, one (1) of them is non-analytical at x = 2.
Thus, x = 2 is an irregular singular point.
Answer:
A=45°
Step-by-step explanation:
soln:
given,
ABC is a right angled triangle where C is right angle
i.e. C=90°
sin A= sin B=x(let)
A=?
we know,
A+B+C=180°[°•°sum of angles of a triangle]
or, x+x+90°=180°
or,2x=90°
•°•x=45°
hence,A=45°
Answer:
- 63 ft²
- h = 2A/b; h = 7 ft
Step-by-step explanation:
1. Put the values where the variables are in the formula, then do the arithmetic.
... A = (1/2)bh = (1/2)(18 ft)(7 ft) = 63 ft²
2. Divide by the coefficient of h. Substitute the given values and do the arithmetic.
... A = (1/2)bh
The coefficient of h is b/2, so we divide by that—or multiply by its inverse, 2/b.
... 2A/b = h
Substituting the given numbers, you have ...
... 2(28 ft²)/(8 ft) = h = 7 ft
The height of the triangle is 7 ft.
Rational numbers are any numbers that terminate (the decimal ends somewhere)
The only set that does this is D, since

All other sets have these:

None of these terminate (the decimals goes on forever), so the answer is D
Answer:
The cost of house was $245000 when it was built.
Step-by-step explanation:
Given that:
Cost of the house today = $333200
Percent increase in today's price = 36%
Let,
x be the cost of house when it was built.
100 be the percentage when the house was built.
Percentage of house price today = (100+36)% = 136%
136% of x = 333200

Dividing both sides by 1.36

Hence,
The cost of house was $245000 when it was built.