Treat x^4 as the square of p: x^4 = p^2.
Then x^4 - 5x^2 - 36 = 0 becomes p^2 - 5p - 36 = 0.
This factors nicely, to (p-9)(p+4) = 0. Then p = 9 and p = -4.
Equating 9 and x^2, we find that x=3 or x=-3.
Equating -4 and x^2, we see that there's no real solution.
Show that both x=3 and x=-3 are real roots of x^4 - 5x^2 - 36 = 0.
Answer:
sin148 and cos58
Step-by-step explanation:
sin32=0.530
sin148=0.530
cos58=0.530
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A circle is 360 degrees, and there are 12 sections on a clock. Divide 360 by 12, which will get you 30. The hand moves 4 hours, so you would multiply 30 times 4 and get 120 degrees. I hope I helped!
Answer:
5m=85
Step-by-step explanation:
Mai's savings is represented by m, which is multiplied by 5 (5m). Then, the product of that is 85 (5m=85).
Answer:
9/33
Step-by-step explanation:
find the total of people that have attended college (9+12+12 =33)
now go to the number of people that are both college and conservative (9)
