Answer:
Step-by-step explanation:
Solve the inequality 
Use distributive property:
Subtract 4s:
Subtract 14:
Divide by -6 (do not forget to change sign, because division by negative number changes the sign):
5. The 5th figure will have 30 tiles.
6. The 6th figure will have 42 tiles.
7. The pattern is non-linear (quadratic).
8. The 20th figure can be made with 420 tiles.
_____
The Nth figure is made with n*(n+1) tiles. To answer question 8, you must solve
.. n(n +1) = 420
.. n^2 +n -420 = 0
.. (n +21)(n -20) = 0
.. n = 20 or -21 . . . . the negative solution is extraneous
Example P: I do my homework
P: I get my allowance
Answer:
A is y-4 x-4
B is y-3 x-2
C is y-1 x-2
D is y-1 x-4
Step-by-step explanation:
look at where they are lined up from y to x
Answer:
The only answer that would work would be D) | 4.8 - ( -2.3) |
Step-by-step explanation:
This is because the distance is the absolute value of the difference of the two numbers. B and C would also work, but the 2.3 is not negative. A does not work because it is addition.
