3 years ago

PLEASE PLEASE HELP ME 50 POINTS! LATE WORK

Mathematics

2 answers:

marysya [2.9K]3 years ago

7 0

It would be the first choice, $20.

Kamila [148]3 years ago

4 0

The answer is $20. To solve, you take 5/8 then multiply that answer by 32.

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The area of Mammoth Cave NationalPark in Kentucky is about fifty-two thousand, eight hundred thirty and nineteen hundredths acre

frutty [35]

Answer:it’s the first one

Step-by-step explanation:

4 0

2 years ago

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;

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