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Dvinal [7]
3 years ago
7

42x^2 + 32 - 18 =6062

Mathematics
1 answer:
Elenna [48]3 years ago
4 0
Okay, we start with 42x^2 + 32 - 18 = 6062. To solve single-variable equations like this one, we want to isolate the x by moving all of the other numbers to the other side of the equation. We need to first subtract 32 and 18, and that equals 14. Now our problem looks like this, 42x^2 + 14 = 6062. Since 14 is the only other number on the left side, we subtract four from both sides! This gives us 42x^2 + 14 - 14 = 6062 - 14, so 42x^2 = 6062. Now to find x, we want to just have one x on the left side instead of 42, so we divide the equation by 42 to find that 42x^2/42 = 6048/42, so x = 12
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zlopas [31]

Answer:

1. he eats 5 per day (5 less every day)

2. he starts with 83 pieces of candy

3. 53

4. on day 11

Step-by-step explanation:

1. self explanatory

2. self explanatory

3. 6*-5=-30 -30+83=53

4. put y as 28

28=-5x + 83 now solve for x

subtract 83 both sides

-55=-5x

divide -5 from both sides

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3 years ago
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8 0
3 years ago
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Subtract<br> (2x²+5) - (4x - 3)
Ivahew [28]

Answer:

                  x = -1

Step-by-step explanation:

1.1     Pull out like factors :

  -2x - 2  =   -2 • (x + 1)

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3 0
4 years ago
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<img src="https://tex.z-dn.net/?f=3%20-%20%20%5Cfrac%7Bx%7D%7B2%7D%20%20%3C%203%20" id="TexFormula1" title="3 - \frac{x}{2} &l
Sergio [31]
The first step for solving this is to cancel equal terms on both sides of the inequality.
- \frac{x}{2} < 0
Now multiply both sides of the inequality by -2 and flip the inequality sign.
-2 × (- \frac{x}{2}) > -2 × 0
Remember that multiplying two negatives together always equals a positive,, so the expression changes to the following:
2 × \frac{x}{2} > -2 × 0
Reduce the numbers with 2.
x > -2 × 0
Any expression multiplied by 0 equals 0,, so the correct answer to your question will be:
x > 0
Let me know if you have any further questions.
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8 0
4 years ago
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Flauer [41]

Answer:

f(- 2) = 16

Step-by-step explanation:

Substitute x = - 2 into f(x), that is

f(- 2) = 5(- 2)² - 4 = 5(4) - 4 = 20 - 4 = 16

6 0
3 years ago
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