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Marina86 [1]
4 years ago
11

The function relating the height of an object off the ground to the time spent falling is a quadratic relationship. Travis drops

a tennis ball from the top of an office building 90 meters tall. Three seconds later, the ball lands on the ground. After 2 seconds, how far is the ball off the ground? 30 meters 40 meters 50 meters 60 meters
Mathematics
2 answers:
Slav-nsk [51]4 years ago
7 0

Answer:

The answer is A) 50 meters

Step-by-step explanation:

hodyreva [135]4 years ago
3 0

Answer:

Answer is 50 meters

Step-by-step explanation:

Solution:

Height of the building (h)= 90 meters.

Time taken by the ball to reach the ground (t) = 3 seconds

According to the statement;

h = kt²

90=k(3)²

90=k(9)

90=9k

Divide both the sides by 9

k=10

h=kt²

Put the value time (t)=2 in the equation

h=10(2)²

h=10(4)

h=40 meters

Distance from the ground = 90 - 40

=50 meters.

Thus the correct option is 50 meters....

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Find the 97th term of the arithmetic sequence 17, 26, 35, ...
vagabundo [1.1K]

Answer:

881

Step-by-step explanation:

Arithmetic sequences can be written as:

a_n = a_1 + (n-1)d\\a_1 \: is \: 17\\a_n = 17 + (n-1)d\\

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26 = 17 + (2-1)d\\9 = 1d\\d = 9\\a_n = 17 + (n-1)*9\\a_n = 17 + 9n - 9\\a_n = 8 + 9n

So, the 97^t^h term is

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5 0
3 years ago
What is the answer to 450 times 6
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450 * 6
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6 0
3 years ago
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Determine the cost of parking for each given amount of time. 5 minutes costs $ 1 hour costs $ 1 hour and 50 minutes costs $ 2 ho
SOVA2 [1]

<u>Answer:</u>

5 minutes costs $0.25;

1 hour costs $3;

1 hour and 50 minutes costs $5.5

2 hours costs $6;

2 hours and 1 minute costs $6.05;

3 and a half hours costs $10.5

<u>Explanation:</u>

Given the cost of parking for each hour is $3

Therefore, 1 hour = $3

By principle of unitary method;

a)1 hour (60 minutes) = $ 3

   5 minutes = \frac{3 \times 5}{60}

     = $0.25

b)1 hour (60 minutes) = $3

   1 hour 50 minutes = 60+50 minutes = 110 minutes =\frac{3 \times 110}{60}

    = $5.5

c)1 hour (60 minutes) = $3

  2 hours (120 minutes) = \frac{3 \times 120}{60}

   = $6

d) 1 hour (60 minutes) = $3

  2 hours 1 minutes = 120 + 1 = 121 minutes = \frac{3 \times 121}{60}

  = $6.05  

e) 1 hour (60 minutes) = $3

   3 and half hours = (3× 60) +30 = 210 minutes =\frac{3 \times 210}{60}

  = $10.5

Therefore, 5 minutes costs $0.25; 1 hour costs $3; 1 hour and 50 minutes costs $5.5; 2 hours costs $6; 2 hours and 1 minute costs $6.05; 3 and a half hours costs $10.5

6 0
4 years ago
Read 2 more answers
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