Answer:
6 hearts to 9 stars
Step-by-step explanation:
Answer:
see below
Step-by-step explanation:
10x+18<-2
Subtract 18 from each side
10x+18-18<-2-18
10x < -20
Divide by 10
10x/10 < -20/10
x < -2
Yes, that's true PROVIDED your test scores are normally distributed.
If they are, then more than 99% of your test scores are within three
standard deviations of the mean.
You told us that 3-sigma = 5.4 . So less than one score out of every
hundred tests you take is lower than 86.6 or higher than 97.4 .
You are remarkably consistent, so I guess Jupiter must have been
in its ascendancy next door to the house of Andromeda about an
hour before you were born, or some such nonsense.
Well because P = 2b + 2h, then h = (P - 2b) / 2. If you plug that into the area formula, then you get A = b * [(P - 2b) /2]. Plug in your Area (30 m²) and Perimeter (34 m), then Solve. You should end up with b = 15 and h = 2.