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Nat2105 [25]
3 years ago
9

I NEED THIS BY TODAY!!

Mathematics
2 answers:
Agata [3.3K]3 years ago
7 0

Step-by-step explanation:

(1. \: x =  -  \frac{y}{3}

(2. \: x =  \frac{22 + 3y}{2}

I think this is correct and what you wanted

Paladinen [302]3 years ago
5 0
2x-3(-3x)=22
2x+9x=22
11x=22 and divide eleven on both sides leaving x=2
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All three please 10 points
GaryK [48]

Answer:

A) x = 3 or -1

B) x = -7

C)x = -7

Step-by-step explanation:

A) x² + 2x + 1 = 2x² - 2

Rearranging, we have;

2x² - x² - 2x - 2 - 1 = 0

x² - 2x - 3 = 0

Using quadratic formula, we have;

x = [-(-2) ± √((-2)² - 4(1 × -3))]/(2 × 1)

x = (2 ± √16)/2

x = (2 + 4)/2 or (2 - 4)/2

x = 6/2 or -2/2

x = 3 or -1

B) ((x + 2)/3) - 2/15 = (x - 2)/5

Multiply through by 15 to get;

5(x + 2) - 2 = 3(x - 2)

5x + 10 - 2 = 3x - 6

5x - 3x = -6 - 10 + 2

2x = -14

x = -14/2

x = -7

C) log(2x + 3) = 2log x

From log derivations, 2 log x is same as log x²

Thus;

log(2x + 3) = logx²

Log will cancel out to give;

2x + 3 = x²

x² - 2x - 3 = 0

Using quadratic formula, we have;

x = [-(-2) ± √((-2)² - 4(1 × -3))]/(2 × 1)

x = (2 ± √16)/2

x = (2 + 4)/2 or (2 - 4)/2

x = 6/2 or -2/2

x = 3 or -1

5 0
3 years ago
HELP ITS DUE TMMR !!!!
pentagon [3]

Answer:

a) B

b) draw a closed circle right before 0.1 (where 0.083 would be)

c) 1/12

6 0
3 years ago
Evaluate this expression : 8(16)+8(6)
Leya [2.2K]

Step-by-step explanation:

<h3>8(16)+8(6)</h3><h3>=128+48</h3><h3>=176</h3>
8 0
3 years ago
Write a geometric sequence of at least seven terms. Describe your sequence and your steps for writing the terms.
KatRina [158]
2,6,18,54,162,486,1458 starting point of 2 then multiply by 3 every time until the 7th term
4 0
3 years ago
these numbers form an addition and subtraction fact family 8,3,11 choose the fact family formed by these numbers the choices are
alex41 [277]

Answer: A

Step-by-step explanation:

7 0
3 years ago
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