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zimovet [89]
3 years ago
12

At 2063 ft, the KVLY-TV tower in North Dakota is the world’s tallest supported tower. How long would it take an object to fall f

reely from the top?
Mathematics
1 answer:
IgorLugansk [536]3 years ago
8 0
Use the equation of motion under gravity:-

s =  16t^2    where s is the distance and t = time

2063 = 16t^2

t^2 = 2063 / 16 =  128.94 s

t = sqrt 128.94  =  11. 4 seconds to the nearest tenth of a second

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Look at the diagram and the following information to find the value of x.
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5x+3 =48
5x=45
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8 0
3 years ago
How do you use the distributive property to simply 11 (9+d)
s344n2d4d5 [400]
First multiply 11 with 9 to get 99 and then 11 with d to get 11d
thus the answer is 99+11d.
8 0
3 years ago
The low temperatures in Anchorage, Alaska, for a week were − 6, − 3, − 1, 1, − 3, − 9, and − 14 degrees Celsius. What two temper
Inessa05 [86]

The two temperatures could be removed so that the average of the remaining numbers is the same as the average of the original set of numbers are -1 and -9

Step-by-step explanation:

The formula of the average of a set of data is A=\frac{S}{N} , where

  • S is the sum of the data in the set
  • N is the number of the data in the set

∵ The low temperatures in Anchorage, Alaska, for a week were

   − 6, − 3, − 1, 1, − 3, − 9, and − 14 degrees Celsius

∴ The set of the data is { -6 , -3 , -1 , 1 , -3 , -9 , -14}

- Add the data in the set

∵ S = -6 + -3 + -1 + 1 + -3 + -9 + -14

∴ S = -35

∵ The set has 7 data

∴ N = 7

- Use the formula of the average above to find it

∴ A=\frac{-35}{7}

∴ A = -5

∴ The average of the original set of numbers is -5

To keep the average the same after removing two numbers multiply the average by the new number of data to find the new sum

∵ The number of data after removing two numbers is 5

∴ N = 5

∵ A = -5

- By using the rule of average

∴ -5=\frac{S}{5}

- Multiply both sides by 5

∴ -25 = S

∴ The new sum is -25

- Lets find which two numbers of have a sum of -10 because

   the difference between -35 and -25 is -10

∵ -1 + -9 = -10

∵ -6 + -3 + 1 + -3 + -14 = -25

∴ We could removed -1 and -9

The two temperatures could be removed so that the average of the remaining numbers is the same as the average of the original set of numbers are -1 and -9

Learn more:

You can learn more about the average in brainly.com/question/10764770

#LearnwithBrainly

7 0
3 years ago
Harry solved a quadratic equation. His work is shown below.
Pie

Answer:

x = 11 or x = -1

Step-by-step explanation:

(x-5)^2 = 36

(x-5) = 6 or (x-5)= -6

then x = 11 or x = -1

4 0
2 years ago
Read 2 more answers
Fill in the missing work and justification for step 5 when solving 4(x + 1) - 8.
belka [17]

Answer:

multiplication property of equality

Step-by-step explanation:

8 0
3 years ago
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