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2 years ago

14

PLEASE HELP 100 POINTS GUARANTEED! PLEASE PUT THE ANSWER IN AN ALGEBRAIC EXPRESSION!!! ANSWER ALL AND YOU WILL RECEIVE BRAINLIES

T
1. Negative two is equivalent to the quotient of a number and four added to one.
2. The sum of three-fourths of a number and eleven is fourteen.
3. Zero equals two-thirds a number decreased by twelve.

1 answer:

zlopas [31]2 years ago

7 0

Answer:

1.

-2 = x/4 + 1

Subtract 1 from both sides:

-2 - 1 = x/4 + 1 - 1

-3 = x/4

Multiply both sides by 4:

-3 * 4 = x/4 * 4

-12 = x

2.

3x+5

3.

X= 12 or 18

This could be read two different ways.

0=2/3x-12

12=2/3x

12÷2/3=x

12*3/2=x

18=x

—-OR—-

0=2/3(x-12)

0=2/3x-8

8=2/3x

8÷2/3=x

8*3/2=x

12=x

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Answer:

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Step-by-step explanation:

Given

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$T_7 = 40$

Required

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Square root both sides

$r = \sqrt{\frac{1}{4}}$

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By substituting 160 for T5 and ± $\frac{1}{2}$ for r;

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Multiply through by 16

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Now, we can easily solve for the 6th term

Recall that the formula of a GP is

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Here, n = 6;

$T_6 = a r^{6-1}$

$T_6 = a r^5$

$T_6 = 2560 r^5$

r = ± $\frac{1}{2}$

So,

$T_6 = 2560( \frac{1}{2}^5)$ or $T_6 = 2560( \frac{-1}{2}^5)$

$T_6 = 2560( \frac{1}{32})$ or $T_6 = 2560( \frac{-1}{32})$

$T_6 = 80$ or $T_6 = -80$

$T_6 =$ ±80

Hence, the 6th term is positive/negative 80

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Answer:

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