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Sidana [21]
3 years ago
12

Pls help me with this question :)

Mathematics
1 answer:
natima [27]3 years ago
3 0
I think it would be 4
:)
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I could use any help as soon as possible in need this due tomorrow for exams
EastWind [94]
The answer woukd be 23
6 0
3 years ago
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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
2y + x = 6
Nimfa-mama [501]

B) The system of equations has a solution

4 0
3 years ago
In ordered pair (6,-2), starting from the origin, you'd move...
stiks02 [169]
You’d move 6 to the right and 2 down
8 0
2 years ago
Read 2 more answers
Frank is surveying shoppers about their use of the new food court in a mall. Which question in his survey is a statistical quest
viva [34]

Answer:

A  How many hours do you spend at the food court each month? is a statistical question

Step-by-step explanation:

Because that can have many answers unlike where is the food court in the mall? that question is not statistical because there can only be one answer and so are all the other ones.

5 0
2 years ago
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