Answer: 245 feet
Step-by-step explanation:
Given: The height of the rocket after t seconds is represented by the formula:
[Differentiate both sides w.r.t. t]
Put
Also, 
i.e. height is maximum at t=7.
Maximum height = 
Hence, the maximum height the rocket reaches = 245 feet.
Answer:
- trailing zeros are dropped
- 1846 beats
- 42×(selling price for 1 tin)
Step-by-step explanation:
41. The product of 0.25 and 0.4 is 0.100, with three decimal places. Trailing zeros are usually dropped--except when they are used to indicate significant digits in a calculation. Hence, the usual presentation of the result is ...
0.25 × 0.4 = 0.1
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42. To find total beats, multiply beats per second by seconds.
(52 beats/second)(35.5 seconds) = (52)(35.5) beats = 1846 beats
The hummingbird's wings will beat 1846 times in 35.5 seconds.
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43. To find total sales for the week, multiply the price of a tin of popcorn by the number sold in the week (42).
E and in end up canceling each other out so say e was 2 you are adding -2 so the Anwser is f(x)= -13
Answer:
it may be 0.5
Step-by-step explanation:
Square roots are rational and it equals 5 and 5 is rational
