Answer:
C
Step-by-step explanation:
x^3+4x^2-9x-36=0
or x²(x+4)-9(x+4)=0
or (x+4)(x²-9)=0
or (x+4)(x+3)(x-3)=0
x=-4,-3 or 3
Answer:
The length of side of original square is: 20 inches
Step-by-step explanation:
Let x be the length of side of original square
Then x+5 will be the side of new square
Th formula for perimeter is:

As we know the perimeter of the new square we can use the perimeter to find the value of x

The value of x is 20 inches.
Hence,
The length of side of original square is: 20 inches
I believe answer choice C is the answer. You would solve whatever is inside of the parentheses first because of PEMDAS.
Answer:
the answer is option B
Step-by-step explanation:
To find dy/dx the equation here is
first multipled by derivative of second + second multipled by derivative of first
y = x*sinx
dy/dx = x * derivative of sinx + sinx * derivative of x
derivative of x with respect to x is 1
derivative of sinx with respect to x is cosx
therefore
dy/dx = x * cosx + sinx * 1
= x * cosx + sinx
Rate per hour = 6.8
Hours worked = 4
Ot= 1.5
$6.8 x 1.5 = $10.20
$10.20 x 4 hrs = $40.80
You will receive $40.80 ot pay