We are given the range of the data that is from 2.35 grams to 4.75 grams- we can call these two the lower and upper llimits respectively. In this case, to find the first class limits, we have to divide the range into 12. The range is 2.40 grams made up of 12 parts of 0.2 grams. The first class hence limits are
lower: 2.35 g
upper: 2.35+0.2 =2.55 g
Answer:
$460.
Step-by-step explanation:
So the price yesterday was $460
Answer:
12
Step-by-step explanation:
Distribute the negative which would get your 3x + 6 -3x + 6. The 3x would cancel out and you would add 6+6 = 12
Answer:
W is concave up.
Step-by-step explanation:
We are filling a spherical tank starting at the top half (meaning it is fulled half initially) at a constant rate. So, the tank level will increase in proportion to the tank's diameter at a given height.
Since the area of the circle is π·r² , then W(t) will be an increasing curve of second degree.
So, the curve for W(t) is concave up.
Also, the tank level increases over time at a more rapid rate.
Hence, the graph of W is concave up.