Answer:22
Step-by-step explanation:first day 2 each day for the next 2days doubled the original amount therefore 2*2 each day 4 now for 5 days = 20+ first day 2=22
Answer:
18. x= 15
19. x = 32.5
20. 82.097
Step-by-step explanation:
because any trianglw with 65 degrees the other abgle will be equal making the side equal as well
180-115= you know
Answer:
D. 4 real roots and 0 complex roots
Step-by-step explanation:
If I assume that the function you are saying is
There should be up to "4 roots," there can't be more or less than 4 total solutions. First, we need to check how many sign changes are there in this function. There are 3 positive real roots. Now lets check for negative roots.
There are is only 1 negative real root. Since we basically have 4 real roots, and the max is 4. There should be 4 real roots and 0 complex roots.
No, because if x was 2:
5(2) + 3(2)= 10+6
=16
5(3) + 2y= 15 + 17y, it would already be to high of a number