This is basic Pythagoras. Remember A squared + B squared = C squared?
reverse it and u get c squared - a squared = b squared.
Apply to ur equation. 14.7 squared - 11.9 squared = 216.09 - 141.61 = 74.48 squared. find the square root, 8.630179604156567, and round it to the nearest 10th. That will equal 8.6
Hope it helps!
Puffin.
Answer:
5 odd numberis there 31,33,35,37,39
A) chart below!
0 = -210
5 = -155
10 = -100
15 = -45
20 = 10
25 = 65
b) The negative value of p means that she is losing money rather than gaining a profit.
c) Her profit would be $340
This is not an equation so it cannot be solved.
Answer:
(3a-1)(3a+1)
Step-by-step explanation:
We can quickly see with this problem that it is the difference of two squares as 9a^2 is (3a)^2 and 1 is 1^2 and therefore can factorise quickly using this rule.
x^2-y^2 = (x-y)(x+y) where x = 3a and y = 1