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Tema [17]
2 years ago
15

What is the error in the equation

Mathematics
1 answer:
dimulka [17.4K]2 years ago
4 0

Answer:

The fifth line contains the error.

Step-by-step explanation:

Line 1 is the equation.

Lines 2, 3, and 4 are correct.

The error is in the 5th line.

The square root of a negative number is not a real number, so if this problem is solved only with real numbers, there is no solution.

If imaginary numbers are allowed, then the last line should read:

x = \pm\dfrac{i\sqrt{11}}{2}

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Simplify the following expression,<br><br> 2(k - 9) + 12
Phoenix [80]

Answer:

2k - 6

Step-by-step explanation:

Distribute:

2k - 18 + 12

Add:

2k - 6

8 0
2 years ago
One reading at an article research station showed that the temperature was -35 ��
Vikki [24]
Degrees Fahrenheit = (1.8 * -35) +32
Degrees Fahrenheit = -31
Formulas and temperature converter are here:
http://www.1728.org/convtmp2.htm

7 0
3 years ago
#22-1: There are 8 sections of the spinner. There are 2 red, 2 green, 2 blue, and 2 yellow sections. the
lutik1710 [3]

Answer:

1/2

(This is assuming all sectors are congruent)

Step-by-step explanation:

Well the other two colors that aren't red or green is blue and yellow.

There are 2 blues and 2 yellows.

There are 8 sections altogether.

We are asked to find the probability that our spinner will land on blue or yellow so we do (blue+yellow)/all = (2+2)/8=4/8=1/2.

This probability was assuming all sectors were congruent sectors.

7 0
3 years ago
Read 2 more answers
What will be the best estimate of the weight of a bag of popcorn
motikmotik

Answer:

It usually comes in ABOUT a 3.2 oz bag... (my guess)

Step-by-step explanation:

This question needs to be further detailed.

3 0
2 years ago
Simplificar A=4x2-6x2+7x2-20x2+19x2
maks197457 [2]

Answer:

4x²

Step-by-step explanation:

Your equation is 4x² - 6x² + 7x² - 20x² + 19x².

Since they all have the same variable, simply combine them all to find your answer.

4x² - 6x² + 7x² - 20x² + 19x²

-2x² + 7x² - 20x² + 19x²

5x² - 20x² + 19x²

-15x² + 19x²

4x²

7 0
2 years ago
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