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If 3t3 – 7 = 74, what is the value of t2 – t?
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17 Jul 2018, 11:48
17 Jul 2018, 11:48
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Question Stats:
94% (00:39) correct
5% (01:27) wrong based on 69 sessions
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If \(3t^3 - 7 = 74\), what is the value of \(t^2 - t\)?
(A) –3
(B) 3
(C) 6
(D) 9
(E) 18
(A) –3
(B) 3
(C) 6
(D) 9
(E) 18
Re: If 3t3 – 7 = 74, what is the value of t2 – t? (A) –3 (B) 3 (
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18 Jul 2018, 12:29
18 Jul 2018, 12:29
1
sandy wrote:
If \(3t^3 - 7 = 74\), what is the value of \(t^2 - t\)?
(A) –3
(B) 3
(C) 6
(D) 9
(E) 18
(A) –3
(B) 3
(C) 6
(D) 9
(E) 18
Given
3\((t)^3\) -7 = 74
3\((t)^3\) = 81
\((t)^3\) = 27
\((t)^3\) = \((3)^3\)
t = 3.
Question :
\((t)^2\) - t
=\(3^2\) -3
= 6
The best answer is C.
Re: If 3t3 7 = 74, what is the value of t2 t?
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12 Jun 2023, 02:24
12 Jun 2023, 02:24
1
\(3t^3-7=74\)
\(3t^3=81\)
\(t^3=\frac{81}{3}\)
\(t^3=27\)
\(t=3\)
Therefore,
\(t^2=9\)
\(t=3\)
\(t^2-t=9-3=6\)
\(t^2-t=6\)
The Answer is Choice C
\(3t^3=81\)
\(t^3=\frac{81}{3}\)
\(t^3=27\)
\(t=3\)
Therefore,
\(t^2=9\)
\(t=3\)
\(t^2-t=9-3=6\)
\(t^2-t=6\)
The Answer is Choice C
