Answer:
is this for edmentum
Step-by-step explanation:
Answer:
2
Step-by-step explanation:3
Answer:
<u>The third table is an arithmetic sequence </u>. Its difference is -1.4.
Step-by-step explanation:
In an arithmetic sequence the difference between one term and the next is a constant
8.7 - 1.4 = 7.3
7.3 - 1.4 = 5.9
5.9 - 1.4 = 4.5
4.5 - 1.4 = 3.1
Since the exponent is 3, and in the parentheses is x+y, it's basically
(x+y)(x+y)(x+y)
You write out x+y 3 times since the exponent is 3.
If the exponent was 4, you would write out x+y 4 times and so on.
The 3 gives value to the x+y and how many to use or calculate before getting your answer.
Remember distributive property
a(b+c)=ab+ac
a(b-c)=ab-ac
also
law of exponents
=
and
(a-b)(a+b)=a^2-b^2 (for question 14)
and (a+b)^2=a^2+2ab+b^2 (for question 15)
11.
=
=
12. 108+(28∛21)
13. (-2√6)+(4√10)
14.√(2x-3)-49
15. 2x+(20√x)+50
16. (3∛2)-(6∛4)-16
17. 42x-6