Answer:
1). x = 81
2). x = 84
Step-by-step explanation:
1). By applying geometric mean theorem in the given triangle,

56x = (18√14)²
56x = 4536
x = 
x = 81
2). By applying geometric mean theorem,

16x = (8√21)²
16x = 1344
x = 
x = 84
Answer:
A
<em>Hope that helps!</em>
Step-by-step explanation:
Answer:
B is correct.
Step-by-step explanation:
Quadratic Expression (Standard Form) is:

To say it simply, the expression must have 2 as the highest degree.
This means that if there are any higher or lower degrees than 2 then they are not quadratic expression.
A choice is not quadratic expression because it has 1 as the highest degree.
B choice is correct because 2 is the highest degree.
C choice is wrong because 3 is the highest degree.
D choice is wrong because it is not a polynomial.
Therefore, B is correct.
Step-by-step explanation:
The formula for finding the area of a trapezoid is
×h
Start by substituting the values given in the problem into the formula
×4
Now Simply/solve
×4
6×4
24
The area of the trapezoid is 24
I hope this helps!!!
Answer:33 1/3%
Step-by-step explanation: