15. 11y
16. 8xy
17. -24a
18. -7cd
Anything with a zero denominator is undefined.
Answer:
First picture: 1st choice, -7
Second Picture: Second Choice, f(5)=9
Third Picture: Second Choice, the volume of the basketball when the radius is <em>r</em>
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Answer:
+1, -1, +11, -11
probably written with a +- symbol:
+-1, +-11
Maybe (silly) written like fractions:
+- 1/1, +- 11/1
Step-by-step explanation:
First list the factors of the leading coefficient. Here its 1. So we're going to use positive and negatives of the factors of 1, which is just +/- 1 . These numbers are going to go on the bottom of a fraction.
Next look for the factors of the constant, here it's 11
So that gives us
+/- 1, +/- 11 . These will go on the top of a fraction. (A fraction is a rational expression, that's why the name)
Then make all the combinations of
factors of constant
OVER
factors of leadingcoeff
So, we find
+/- 1, +/- 11
9.2*14.71
=135.332
This is to 3 decimal places
