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Phantasy [73]
1 year ago
6

An apple falls from a tree that is 21 feet tall. What is the height

Mathematics
1 answer:
Alexeev081 [22]1 year ago
4 0

Answer:

Use the vertical motion model, h = -16t^2 + 21 , t=1 second

h = -16(1) ^2 + 21

h = 5 feet

Step-by-step explanation:

Just plug in the time with t to get your answer in height

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1 year ago
Three judges measure the lap times of a runner and each measurement is different from the others by a few hundredths of a second
ohaa [14]

Answer:

Systematic error

Step-by-step explanation:

Assuming that none of the judges are biased, the most likely reason for this difference is the occurrence of systematic errors.

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In this case, the reaction time from observing the finish and stopping the clock for each judge might be different, which configures a systematic error.

6 0
2 years ago
anna can buy 3 sweatshirts for a total of $45.how much would it cost if she were to buy 5 sweatshirts at same price?
Feliz [49]

Answer: Anna could buy 5 sweatshirts for $75.

Step-by-step explanation:

lets figure out the price of one sweatshirt.

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6 0
1 year ago
What is the recursive formula for this arithmetic sequence? -4, 3, 10, 17, ...
MatroZZZ [7]
<span>a1 = 3
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5 0
2 years ago
Read 2 more answers
What is the solution for x in the equation? -4 + 5x − 7 = 10 + 3x − 2x A.  B.  C.  D. 
laiz [17]

Answer:

x=21/4

Step-by-step explanation:

1. combine like terms

-4+-7= -11  3x-2x=x

2. subtract x

5x-11=x+10

4x-11=10

3. add 11

4x=21

4. divide 21 by 4 = 21/4

8 0
2 years ago
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