Answer:
The rule is to add 4 squares.
There will be 18 squares in figure 5
Step-by-step explanation:
Answer:
Step-by-step explanation:
you have a special triangle 30-60-90
the ration in this traingle is x, x , 2x, where 2x is the hypothenuse
the hypothenuse is 12
x=12/2=6
the other leg is 6=10.39
Answer:240
Explanation 20 dollars off every hundred or 0.20 times 300 equals how much you get off
Answer:
x(x-7)+4(x-1)/(x-1)(x+1)(x-7)
Step-by-step explanation:
Given the expression x/x²-1 + 4/x²-6x-7
Factorize x²-6x-7
x²-6x-7
= x²-7x+x-7
= x(x-7)+1(x-7)
= (x+1)(x-7)
Replace back into the expression given
x/x²-1 + 4/x²-6x-7
= x/x²-1 + 4/ (x+1)(x-7)
= x/(x+1)(x-1) + 4/(x+1)(x-7)
Find the LCM
= x(x-7)+4(x-1)/(x-1)(x+1)(x-7)
This gives the required expression
Answer:
54, 486, 154
Step-by-step explanation:
x+9x+100+x= 694
11x= 694-100
11x=594
x= 54
54×9=486
54+100= 154
54+486+154=694.