Answer:
The first term is 28.
Step-by-step explanation:
Given: 8th term of Geometric sequence , 
and 3rd term of Geometric Sequence, 
We have to find First term of given geometric Sequence.
Let a be the first term of geometric sequence.
We know that,
So,
So,
Therefore, The first term is 28.
Answer:
Part A. For x, we’ll use 1, 2, 3, 4, and 5. Now, we have to plug in the x-values to get f(x) (or y). I’ll do the first two w/ explanations then just give the answers. when x= 1, f(1)= 2/3•1-1. solve accordingly, you get -0.3. Next, when x= 2, f(2)= 2/3•2-1. Solve and you get f(2)= 0.3. when completing and solving for the other 3 x-values, use the same process and plug into the chart with corresponding numbers. A calculator may be helpful.
Part B. Just graph, use the x-values for x and the y-values for y. if u don’t know how to graph u may want to look back on some of your lessons if available.
Thanks.
Step-by-step explanation:
Formatting first:
Step 1: (6.2 − 1.6) − 4.4 + 7.8
Step 2: 6.2 + (− 1.6 − 4.4) + 7.8 (commutative property)
Step 3: 6.2 − 6 + 7.8
Step 4: −14 − 6 = 8 (commutative property)
Step 5: 14 − 6 = 8
Step 2 is the associative property (a+b)+c=a+(b+c)
Step 4 is just wrong with -14 instead of 14; seems corrected in step 5.
Answer: He wrote commutative instead of associative in Step 2.
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3/5y - 4x = 3 - 2y
3y - 20x = 15 - 10y
3y + 10y = 20x + 15
13y = 20x + 15
y = 20/13 x + 15/13
y = 20/13 (9) + 15/13 = 15
