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eimsori [14]
3 years ago
9

T - 7 < 10, t = 28 show the work plz

Mathematics
2 answers:
Rasek [7]3 years ago
8 0
T - 7 < 10, T = 28
28 - 7 < 10
21 < 10
FALSE
Pavlova-9 [17]3 years ago
8 0
T= 28
1. Plug 28 into your t
28-7<10
2. Subtract 7 from 28
21<10
3. Determine if the statement is true or false
Answer= False
Reasoning= 21 would be greater than 10
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What is the common ratio and explicit formula for -2,6,-18,54?
Snezhnost [94]

Answer:

The explicit formula for a given geometric sequence is of the form

a_{4} =\frac{1}{(a_{1})^4}

Step-by-step explanation:

Given sequence is {\{-2,6,-18,54}\}

Let a_{1}=-2,a_{2}=6,a_{3}=-18,a_{4}=54

To find the common ratio r:

r=\frac{a_{2}}{a_{1}}

=\frac{6}{-2}

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Therefore r=-3

r=\frac{a_{3}}{a_{2}}

=\frac{-18}{6}

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Therefore r=-3

Therefore common ratio is -3

Therefore given sequence is geometric sequence.

The explicit formula for a geometric sequence is a_{n}=a_{1}^{r-1}, where common ratio is r.

From given sequence we are having  r=-3

Therefore the explicit formula for a given geometric sequence is of the form a_{4} =a_{1}^{-3-1}

a_{4} =a_{1}^{-4}

a_{4} =\frac{1}{(a_{1})^4}

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3 years ago
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Answer:

x=3

Step-by-step

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Which expression is equivalent to 2(x + 7) - 2(9x - 0.4)?
Black_prince [1.1K]

Answer:

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Step-by-step explanation:

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14-16x+0.8

14+0.8-16x

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