Answer:
once you factor it you get: (x+2)(x-1)
then when you solve for x the answer would be -2 and 1
Step-by-step explanation:
The answer is {4, 6, 8, 10, 12} - or B
Answer:
The diameter decreases at a rate of -0.0477 cm/min when it is 10 cm.
Step-by-step explanation:
Surface area of a snowball:
A snowball has a spheric format, which means that it's surface area is given by:
In which r is the radius, which is half the diameter. In function of the diameter, the area is given by:
Solving the question:
To solve this question, we have to implicitly derivate the area in function of t. So
Snowball melts so that its surface area decreases at a rate of 3 cm2/min
This means that
Find the rate at which the diameter decreases when the diameter is 10 cm.
This is when . So
The diameter decreases at a rate of -0.0477 cm/min when it is 10 cm.
Cat is out on the first day:
<span>240: 5 = 48 t </span>
<span>What remains after you take it out on day 48 t </span>
<span>240-48 = 192 t </span>
<span>Cat is out in the next </span>
<span>192 6 = 32t </span>
<span>What remains after you take it out 32 t of the day? </span>
<span>192-32 = </span>160t<span>
</span>
Answer: No. Quincy should have used the trend line to find the corresponding x value when y=80.