Answer:
Area of the: 1. Parallelogram: A = bh. 2. Rectangle: A = lw. 3. Square: A = 32. 4. ... Surface are: (sum of the area of each of the surfaces) ... Pyramid: SA = (# of triangular or lateral faces) ( bh )+ area of the base a. ... 1) Find the area of the following figure. ... bases - 2 triangles r= (1 bh) h. V. 5(2027X36). 3) Find the volume of a ...
Step-by-step explanation:
Answer: E = 56
Step-by-step explanation:
E is proportional to √C
To remove proportionality, introduce a constant (k).
E = k × √C
From question,
E = 40 and C = 25
So,
40 = k ×√25
40 = k × 5
k = 8
Now,
C = 49
k = 8
E = ?
E = k√C
E = 8 × √49
E = 8 × 7
E = 56
Answer:
its A
Step-by-step explanation:
From trigonometry we know that:
if 
then,
(where
is an integer)
This can be rewritten in degrees as:
.............(Equation 1)
Now, in our case, 
Therefore, (Equation 1) can be written as:
..........(Equation 2)
Now, to find the correct options all that we have to do is replace n by relevant integers and find the values of
that match.
For n=2, (Equation 2) gives us:
.
Thus, 
Now, we know that: 
Let n=-1, then:

Thus, 
Likewise, 
Only the last option
will never match
because no integral value of
will ever give 
Thus the last option is the correct option.