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Dovator [93]
3 years ago
12

3 exampls of discrete variable ​

Mathematics
2 answers:
mr Goodwill [35]3 years ago
7 0

Number of coin flips

Number of books published

Distance walked, rounded to the nearest kilometer

saw5 [17]3 years ago
3 0
Number of coin flips: 4. (It can't meaningfully be 4.3)
Number of books published: 2. (It can't meaningfully be 2.1)
Distance walked, rounded to the nearest kilometer: 3 (We rounded it, so it can't be 3.2)
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Each Saturday, Tina mows lawns to earn extra money which she puts into a savings account. The graph shows the balance of Tina's
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I need to see the graph
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2 years ago
PLEASE HELP!!<br><br> what is the explicit formula for this sequence -7, -4, -1, 2, 5
trasher [3.6K]

Answer:

The explicit formula for the given expression is a_n=-10+3n.

Step-by-step explanation:

The given sequence is

-7, -4, -1, 2, 5

The difference between two consecutive terms is same, therefore the given sequence is an arithmetic sequence.

The first term of the given AP is -7 and the common difference is

-4-(-7)=-4+7=3

The explicit formula for an AP is

a_n=a+(n-1)d

Where, a is first term, d is common difference and n is number of terms.

Substitute a=-7 and d=3 in the above equation.

a_n=-7+(n-1)3

a_n=-7+3n-3

a_n=-10+3n

Therefore the explicit formula for the given expression is a_n=-10+3n.

6 0
3 years ago
20.<br><br> What is the end behavior of the function?
Leokris [45]
A is the answer to your question
5 0
2 years ago
Solve x2 + 8x − 3 = 0 using the completing-the-square method.
lisabon 2012 [21]
(a+b)^2=a^2+2ab+b^2\\------------------\\\\x^2+8x-3=0\ \ \ |add\ 3\ to\ both\ sides\\\\x^2+2x\cdot4=3\ \ \ |add\ 4^2\ to\ both\ sides\\\\x^2+2x\cdot4+4^2=3+4^2\\\\(x+4)^2=3+16\\\\(x+4)^2=19\iff x+4=-\sqrt{19}\ or\ x+4=\sqrt{19}\\|subtract\ 4\ from\ both\ sides\\\\\boxed{x=-4-\sqrt{19}\ or\ x=-4+\sqrt{19}}
3 0
3 years ago
Read 2 more answers
A soccer field is a rectangle 60 meters wide and 110 meters long. The coach asks players to run from one corner of the grass fie
Wittaler [7]

Answer:

A

Step-by-step explanation:

A soccer field is a rectangle 60 meters wide and 110 meters long. The coach asks players to run from one corner of the grass field to the opposite corner. The path from one corner of the grass field to the opposite corner is the diagonal of the rectangular field.

The width, the length and the diagonal of the rectangular field form right triangle. By the Pythagorean theorem,

\text{Diagonal}^2=\text{Width}^2+\text{Length}^2\\ \\\text{Diagonal}^2=60^2+110^2\\ \\\text{Diagonal}^2=3,600+12,100\\ \\\text{Diagonal}^2=15,700\\ \\\text{Diagonal}=\sqrt{15,700}\approx 125\text{ yd}

6 0
3 years ago
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