Width of the rectangle is 13 cm and length is 29 cm.
<u>Step-by-step explanation:</u>
Step 1:
Given perimeter of the rectangle = 84 cm. Let the width be x, then the length of the rectangle = 2x + 3. Use the formula for perimeter of a rectangle = 2(length + width) to find the dimensions.
84 = 2(2x + 3 + x) = 2(3x + 3) = 6(x + 1) [taking 3 as common factor outside)
⇒ 84 = 6x + 6
⇒ 78 = 6x
∴ x = 13
⇒ Width of the rectangle = 13 cm
∴ Length of the rectangle = 2x + 3 = 29 cm
(f/g)(x) = (x^2-25)/(x-5) = x+5. So domain will be R, all real numbers
Answer:
x=88.163
Step-by-step explanation:
tan10 = x/500
x= 88.163
Answer:
D_{f(x)} = [9, \infty)
Step-by-step explanation:
Here we have the square root of a function, in the following format:
For the square root, and roots of even numbers(root of 4, 6, ...), we have the following condition in the domain
In this problem, we have that:
So
So the domain is
Use substitution to solve the equation:
20-4/4.
4/4=1 so it simplifies to 20-1 which equals 19
