-1 or option c is correct. Use the given functions to set up and simplify f(−2).
Difference between the area of the triangle and square is 25
Step-by-step explanation:
- Step 1: Find the area of the triangle given its 3 sides using the Heron's formula.
Area of the triangle =
where s = 
⇒ s = (6 + 8 + 10)/2 = 24/2 = 12
= 
=
=
= 24 sq. units
- Step 2: Find the area of the square with perimeter = 28 units.
Perimeter of the square = 4 × side = 28
⇒ Side of the square = 28/4 = 7 units
⇒ Area of the square = (side)² = 7² = 49 sq. units
- Step 3: Find the difference between the area of the square and triangle.
Difference = 49 - 24 = 25
Answer:
Solving the equation
we get 
Step-by-step explanation:
Noah's step to solve the equation
are:

The next step is to take square root on both sides because: 

Now, we know that: 

So, Solving the equation
we get 
Answer:She will have to charge her customers at least 21 dollars an hour to help her family.
Step-by-step explanation:
Answer:
area=10.15 cm
Step-by-step explanation:
a=h*b/2
a= 2.9*7/2
a= 10.15