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IgorC [24]
3 years ago
10

PLEASE HELP ME FOR BRAINLIEST!!!!

Mathematics
1 answer:
lana [24]3 years ago
3 0
Use cosine rule and sine rule
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An object is dropped from a building and allowed to freefall to the ground. The height of the object over time is shown in the t
vodomira [7]

Answer: The (magnitude of the) rate of change increases over time. The object drops 16 feet in the first second, but 80 feet in the last second.


Explanation:


1) I will start by showing the table in an easy way to read and understand:


Time (seconds)   Height (feet)

0                           144

1                            128

2                           80

3                             0


2) Rate of change


  • An initial clarification: the rate of change decreases since it is becoming more negative every second, but, in the analysis, the reasonable is to deal with the magnitude of this rate. The results shown below that the rate as a negative value, but the comparison is set about the magnitude of the change.

  • The rate of change is calculated for every pair of consecutive points using this equation:

          rate of change = [change in height] / [time elapsed]


  • Calculations:

a) rate₁: [128 - 144] feet / [ 1 - 0] sec = - 16 feet / sec ⇒ the object drops 16 feet in the first second.


b) rate₂ = [80 - 128] feet / [2 - 1] sec = - 48 feet/sec ⇒ the object drops 48 feet in the next second


c) rate₃ = [0 - 80] feet / [3 - 2] sec = - 80 feet/sec ⇒ the object drops 80 feet in the last second.


The rate of change  is more negative every second: it increases in magnitude over time. The object drops 16 feet in the first second, but 80 feet in the last second.

3 0
3 years ago
Read 2 more answers
the current temperature in small town is 20 degrees Fahrenheit this is 6 degrees less than twice the temperature that it was 6 h
Scorpion4ik [409]

Answer:

26 degrees fahenhiet

Step-by-step explanation:

you add 6 to 20 because it was 6 degrees higher 6 hours ago

im not sure but mybe :3

4 0
3 years ago
A box of 84 penguins for 13,597 or a bag of 50 penguins for 795.95.
katen-ka-za [31]

Answer: bag of 50 penguins for 795.95.


Step-by-step explanation:


5 0
3 years ago
(2 + i)(3 - i)(1 + 2i)(1 - i)(3 + i)
anygoal [31]

Answer:

<h2>50+50i</h2>

Step-by-step explanation:

Given the expression (2 + i)(3 - i)(1 + 2i)(1 - i)(3 + i), we are to take the product of all the complex values. We must note that i² = -1.

Rearranging the expression [(3 - i)(3 + i)] [(2 + i)(1 - i)](1 + 2i)

On expansion

(3 - i)(3 + i)

=  9+3i-3i-i²

= 9-(-1)

= 9+1

(3 - i)(3 + i) = 10

For the expression (2 + i)(1 - i), we have;

(2 + i)(1 - i)

= 2-2i+i-i²

= 2-i+1

= 3-i

Multiplying 3-i with the last expression (1 + 2i)

(2 + i)(1 - i)(1 + 2i)

= (3-i)(1+2i)

= 3+6i-i-2i²

= 3+5i-2(-1)

= 3+5i+2

= 5+5i

Finally,  [(3 - i)(3 + i)] [(2 + i)(1 - i)(1 + 2i)]

= 10(5+5i)

= 50+50i

Hence,  (3 - i)(3 + i)(2 + i)(1 - i)(1 + 2i) is equivalent to 50+50i

5 0
3 years ago
80 POINTS The director of a local ballet company needs to print the programs for the next performance. Janet’s Print Shop charge
Evgen [1.6K]

Answer:

Do you still need help with this problem?

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
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