Answer:
A number is a perfect square (or a square number) if its square root is an integer; that is to say, it is the product of an integer with itself. Here, the square root of 49 is 7. Therefore, the square root of 49 is an integer, and as a consequence 49 is a perfect square.
Step-by-step explanation:
The formula is 700 - 100 - 75(n-1), where n is the number of months.
Answer:
-7
Step-by-step explanation:
Because there is no multiplication, it is just the x^2 terms. There is a -(-2x^2) and a -9x^2, so it is 2x^2 and -9x^2 or -7x^2, so the coefficient is -7.
The answer is 184. 2711
Round it off is 184
Hope that helped :D
Since we know AD, CD and angle D, we can use the law of cosines, which states that
Plugging the values, we have
Which leads to
Taking the square root, we have