4 articles trouvés pour ce sujet.
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Evaluating -x^2 + (yz - 3)^2 |
2009-09-28 |
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Kathy pose la question :
My daughter and I are having trouble solving this equation:
-x²+ (yz – 3)²
if x=-4,y=2 and z=0
We are having difficulty with the -x² part of the equation. Thanks
Penny Nom lui répond. |
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Evaluating numeric expressions |
2009-02-10 |
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Jennifer pose la question :
-521-(-350)-164-(-299)
Penny Nom lui répond. |
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Rewriting and evaluating formulas |
2001-11-19 |
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A conserned mother pose la question :
Due to the wide range of temperatures experienced in Canada, engineers who construct roads must allow for expansion and contraction of the road surface. The following formula is used to calculate the amount of expansion E to allow for: E= kL(T-t), where k is the constant of expansion for the road surface. L is the length of the section of highway in metres. T is the temperature of the air in degrees Celsius. t is the temperature, in degress Celsius, at which the section of the highway was constructed.
Walter Whiteley lui répond. |
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Functions |
2000-01-06 |
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Tori Morris pose la question :
Consider the function f(x)=x2-3. Which of the following are true? - f(1)>f(0)
- f(2)>f(-3)
- f(2)=f(-2)
- f(-1)=f(3).
More than one answer can be true.
Penny Nom lui répond. |
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