Let Length of each Plan A workout be 
and Length of each Plan B workout be $b$
on Wednesday,
$5a+3b=7$
$2a+12b=19$
multiply equation one by $4$ and subtract equation two from it
to get,
$18a=9$ or $a=\frac12$
substitute $a$ in eq 2. to get $b$, $12b=18\implies b=\frac32$
Answer:
i think its c for the first one and d for the 2nd
Step-by-step explanation:
this is what i got but it might be wrong
You're answer should be non of them if my math is right, but it usually is!
hope this helped!!! ;)
From my understanding you ahould use the trig function cos to solve this.
cos(c) = 15/25 or 0.6
if you have this following function on your calculator I suggest using it:
cos ^{ - 1}
by using the function like so:
cos^{ - 1} (0.6
you should get about 53.13° (rounding to the nearest hundredth)
Hope this helped.
Answer:
- Radius=50 ft
- π=3.14
- Height=30 ft
- Volume=?
We know that,
Thus,the third option is correct.
