Answer:
Step-by-step explanation:
Answer:B
Step-by-step explanation:0.4 times 0.25=0.1
1/0.1= 10
Step-by-step explanation:
let no of gigabyte be x GB.
40 + 12x = 30 + 14x
10 = 2x
x = 5
therefore, 5 GB
Topic: algebraic eqn
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Answer:
arithmetic
Step-by-step explanation:
The points fall on a straight line. They won't do that for a geometric sequence.
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Normally the terms of either sort of sequence are numbered with counting numbers: 1, 2, 3, .... Your x-values are negative, so are obviously not term numbers of a sequence. The differences of x-values are 1, and the differences of y-values are 2.5, so we know the x- and y-values are linearly related. That relationship can be expressed in point-slope form by ...
y = 2.5(x +1) +12.5
which can be simplified to
y = 2.5x +15
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The arithmetic sequence with first term 17.5 and common difference 2.5 would be described by this same equation.
Table:
x y
5 2
6 5
7 8
8 11
<span>Part A: Do the data in this table represent a function? Justify your answer.
Yes, they do. Because for input set is related with a wll defined output, unambiguosly.
Part B: Compare the data in the table with the relation f(x) = 2x + 13. Which relation has a greater value when x = 7?
The relation f(x) = 2x + 13 results in these points
x f(x)
5 23
6 25
7 27
8 29
The relation f(x) = 2x + 13 has a greater value than the relation of the first table when x =7
Part C: Using the relation in Part B, what is the value of x if f(x) = 75?
</span>f(x) = 2x + 13 = 75 => x = [75 - 13] / 2 = 31
if f(x) = 75, x = 31
