27,490 to the nearest ten thousand

Mathematics

2 answers:

Igoryamba3 years ago

8 0

27,000

7 is in the ten thousandth place, and four is next to it. you would look at the number next to the seven and if the number is five or more, you would change the seven to an eight but since the number is four or less, it stays the same.

miv72 [106K]3 years ago

3 0

Answer:

is the comma supposed to be a decimal point?

Step-by-step explanation:

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A student solved a quadratic equation as shown here:

djverab [1.8K]

Answer:

x = 3/2 or x = -4

Step-by-step explanation:

The identifiable error the students have is that before the left hand side of the equation is factorized, the right hand side value of 12 ought to be brought to the left hand side, leaving a net value of zero on the right hand side. Then whatever is factored on the left hand side is then equated to zero and then we can find the two values of x after setting each of the individual factors to zero

We proceed as follows;

$2x^{2} + 5x = 12\\2x^{2} + 5x - 12 = 0\\2x^{2} + 8x -3x -12 = 0\\2x(x+4) -3(x+4) = 0\\(2x-3)(x+4) = 0\\2x-3 = 0 or x+4 =0\\2x=3 or x=-4\\x = 3/2 or x= -4\\x = 1.5 or- 4$