The rational zero theorem looks at the number of sign changes in the equation's terms when x is evaluated with a positive or negative number. In your problem, if we insert a positive value for x:
1st term stays +, 2nd term stays -, 3rd term stays -, last term stays +.
Read from left to right and determine the number of sign changes:
+ - - + [there is a change from + to -, no change from - to -, and a change from - to +] Therefore 2 sign changes. There can be two positive rational zeros, or zero rational zeros [It's always the number of sign changes, and then every other number less than the number of sign changes, and zero]
Let's now do it for a negative x:
1st term becomes -, 2nd term stays -, 3rd term becomes +, last term stays +
- - + + [there is no sign change from - to -, one change from - to +, no change from + to +] Therefore one sign change. There can be one negative rational zero, or zero rational zeros.
This is a difficult concept to type out in a screen box. Please post me a comment if you need additional clarification!
Answer:
1228.31 mm^2
Step-by-step explanation:
The area for the circle is
(20^2*3.14)/2
The area for the rectangle
30*20
Total area
1228.31
Answer:
i think the answer is c Consistent and dependent
Step-by-step explanation:
Answer:
8
Step-by-step explanation:
Sin 30 = k/16
k = 16 x sin 30
k = 16 x (0.5) = 8
Answer:
Step 4 or the final bubble
Step-by-step explanation:
she did not subtract, she added
SO it should be x = -2
