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valentina_108 [34]
3 years ago
9

A rocket travels in a trajectory given by the equation s = -4.9t 2 + v0t, where s is meters above ground, t is time in seconds a

nd v0 is the initial velocity.
If the intial velocity is 49 m/sec, after how many seconds will the rocket reach its maximum height?

a. 5
b. 15
c. 10
Mathematics
1 answer:
Julli [10]3 years ago
8 0
C. Is your answer
Have any more questions? Please add in the comments
-Josh-
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Answer:

a= 168

p= 62

Step-by-step explanation:

25 24 and 7 are pythagorean triples. meaning the short side length is 7.

24*7 = 168

48+14=62

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you have a part time job. you work for 3 h on friday and 6 h on saturday. you also receive an allowance of 20$ per week. you ear
mart [117]
Part time job                          Allowance 20/wk
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Veronika [31]

Answer:

<h3>y = 20</h3><h3 />

Step-by-step explanation:

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aleksandr82 [10.1K]

Answer:

B. 95% confident the average concentration of PCBs in the water supply is between 2.9 ppb and 3.5 ppb

Step-by-step explanation:

You are given the total number of samples, the concentration of lead, and the standard deviation. The standard deviation represents how inaccurate the estimation of the concentration of lead in the drinking water. This means that there can only possibly be a 0.3 ppb error in the estimation. 3.2-0.3=2.9, and 3.2+0.3=3.5

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Read 2 more answers
A surgery asks 25 people if they prefer brand A of brand B laundry detergent. The data show that 12 people prefer brand A. Write
SVETLANKA909090 [29]

Answer:

13 to 25

13:25

\frac{13}{25}

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All of these show the ratio 13/25

Hope this helps!

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