Answer:
<h2>290 in²</h2>
Step-by-step explanation:
From the net:
S.A. = 2(25 in²) + 4(60 in²) = 50 in² + 240 in² = 290 in²
From the model:
The formula of a Surface Area of a rectangular prism:
S.A. = 2(lw + lh + wh)
l - length
w - width
h - height
We have l = 5 in, w = 5 in, and h = 12 in. Substitute:
S.A. = 2(5 · 5 + 5 · 12 + 5 · 12) = 2(25 + 60 + 60) = 2(145) = 290 in²
Given:
m = -8 degrees/hour, the rate of change of temperature
Let x = hours
Let y = temperature, °F
Then y = -8x + b
where b = constant
When x = 0, then y = b.
Therefore b = initial temperature
If the temperature drops by at least 36 °F in the next x hours, then
b - y(6) ≥ 36
b - (-8x + b) ≥ 36
8x ≥ 36
x ≥ 4.5 hours
Answer: At least 4.5 hours
Answer:
ok then
Step-by-step explanation:
<h2><u>Segement</u><u> </u><u>have</u><u> </u><u>angle</u><u> </u><u>of</u><u> </u><u>1</u><u>2</u><u>0</u><u> </u><u>degree</u></h2>
<u>sorry</u><u> </u><u>iss</u><u> </u><u>se</u><u> </u><u>aaghe</u><u> </u><u>nhi</u><u> </u><u>aate</u>
The slope of any line is the fraction 
, where 
is the change in y-coordinate and 
is the change in x-coordinate.
To find these changes, we take the <em>difference </em>of the corresponding x and y coordinate for the two points. Here, our y-coordinates are -7 and 3, and our x-coordinates are 5 and 1, so our slope is
