Tim worker is doing his budget. He discovers that the average miscellaneous expense is $45.00 with a standard deviation of $16.0

Mathematics

1 answer:

Marianna [84]3 years ago

3 0

So what's the question??

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Complete the square on the following quadratic x2+10x+9=0

kakasveta [241]

Given a quadratic equation $x^{2} +ax+c=0$

1. the first thing we do when we want to compete the square, is write the coefficient of x as 2 times a number.

In our case the coefficient of x is 10, so we write 10 as 2*5

2. then we write + $5^{2}$ and - $5^{2}$ to the expression:

$x^{2} +2*5*x+ 5^{2} -5^{2}+9=0$

$(x^{2} +2*5*x+ 5^{2}) -25+9=0$

$(x+5)^{2}-16=0$

Answer: $(x+5)^{2}-16=0$

8 0

3 years ago

determine the volume of a rectangular container van with length,width, and height of 52m,13 m and 20m respectively.

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