Answer:
Step-by-step explanation:
The temp is 100 at time t = 0
After 1 sec, the temp difference would be:
After 2 sec, the temp difference would be:
Similarly for 3 seconds, 4 seconds etc.
We notice that the parenthesis part is 40% of it, so we can also write:
100(40%)^t,
where
t is the time
40% can be written as 40/100 = 0.4
SO, the function is:
Step-by-step explanation:
step 1. this is a trapezoid. the area A = (b1 + b2)h/2 where b1 is the bottom base and b2 is the top base (per se), and h is the height. this formula is the definition of the area of a trapezoid.
step 2. A = (b1 + b2)h/2 = (22 + 9)(5)/2
step 3. A = 31(5)/2 = 155/2 = 77.5in^2.
Answer:
2x² + 23
Step-by-step explanation:
Distribute the -5 and combine like terms.
7x² + 3 - 5(x² - 4) =
= 7x² + 3 - 5x² + 20
= 2x² + 23
The volume of the rectangular pyramid with the given dimensions is: 1,890 cubic millimeters.
<h3>What is the Volume of a Rectangular Pyramid?</h3>
Volume of rectangular pyramid = 1/3(length × width × height)
Given the following:
- Length = 21 mm
- Width = 18 mm
- Height = 15 mm
Volume of the rectangular pyramid = 1/3(21 × 18 × 15)
Volume of rectangular pyramid = 1,890 cubic millimeters.
Learn more about volume of rectangular pyramid on:
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