There are 850 Douglas fir and Ponderosa pine trees in a section of forest bought by Karamazov Logging Co. The company paid an average of $300 for each Douglas fir and $225 for each Ponderosa pine. If the company paid $217,500 for the trees, how many of each kind did the company buy?

Answers

Answer 1

Answer: use the equations 300x + 225y= 217500 and x + y= 850 to solve

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Identify the number of solutions or zeros

2x^2+5x-9=0

Answers

There are going to be two solutions because the "biggest" x is x^2 but you can factor to find what they actually are.

Final answer:

The quadratic equation 2x^2+5x-9 = 0 has two solutions or zeros, which may be real or complex. They can be found using the quadratic formula: x = [-5 + sqrt(97)]/4 and x = [-5 - sqrt(97)]/4.

Explanation:

The equation given is 2x^2+5x-9=0, which is a quadratic equation. The solutions or zeros of a quadratic equation can be found using the quadratic formula: x = [-b ± sqrt(b^2 - 4ac)]/2a. Here, a=2, b=5, and c=-9.

Let's substitute these values into the formula:

x = [-(5) ± sqrt((5)^2 - 4*2*(-9))]/2*2

x = [-5 ± sqrt(25 + 72)]/4

x = [-5 ± sqrt(97)]/4

Therefore, this equation has "two solutions" or zeros, which are x = [-5 + sqrt(97)]/4 and x = [-5 - sqrt(97)]/4.

Learn more about Quadratic Equations here:

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The radian measure equivalent to -45º is _____.

Answers

(-π/4) ...... is the answer !!

2pi radians=360 degrees
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r/2pi=-45/360
r/2pi=-1/8
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4r=-pi
divide both sides by 4
r=-pi/4

-pi/4 radians

What is negative 5 squared?