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Scrat [10]
3 years ago
8

An elevator is 180 feet above the first floor. Each second it descends

Mathematics
1 answer:
xenn [34]3 years ago
7 0

Answer:

9 sec

Step-by-step explanation:

because it decends 12 feet evry second so the answer is nine sec

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For a constant function, the y-coordinate is __________ for every pair of points selected, so the average rate of change always
sergij07 [2.7K]

In mathematics, a constant function is one defined in which a function whose output value (y) is the same for every value of the input variable (x). Therefore this means that whatever is the value for x, the value of y would always be the same. Hence we can say that the function is a straight horizontal line in a Cartesian plane.

Since the value of y does not change, and the average rate of change has the formula:

average rate of change = (y2 – y1) / (x2 – x1)

So y2 – y1 = 0 therefore average rate of change is also zero.

 

Hence to complete the sentence:

For a constant function, the y-coordinate is <u>the same</u> for every pair of points selected, so the average rate of change always has a value equal to <u>zero</u>.

4 0
3 years ago
If (3, y) lies on the graph of y = -(2^x), then y =<br> -8<br> 1/8<br> -6
OverLord2011 [107]
Y = -(2^3) = -8 (substitute x=3)
4 0
3 years ago
Rolling Dice Roll two standard dice and add the numbers. What is the probability of getting a number larger than 9 for the first
Rudik [331]

Answer:

\frac{1}{6}

Step-by-step explanation:

The sum is larger than 9, it means we have: 10, 11, and 12

  • To get the outcome is 12, we have only one way is that the two dice shows face-6. The probability to have 12 is:

P(12) = \frac{1}{6} *\frac{1}{6} = \frac{1}{36}

  • To get 11, we have  it two ways once dice shows face-5 and the other shows face-6  and vice versa

P(11) = 2* \frac{1}{6} *\frac{1}{6} = \frac{1}{18}

  • To get 10, we have it three ways ( once dice shows face-5 and the other shows face-6 and vice versa , two dice show 5)

P(10) = 3* \frac{1}{6} *\frac{1}{6} = \frac{1}{12}

So the probability of getting a number larger than 9 for the first time on the third roll is:

P(12) + P(11) +P(10 )

= \frac{1}{36} + \frac{1}{18} + \frac{1}{12} = \frac{1}{6}

5 0
4 years ago
How many 10 digits numbers have no two digits the same and do not start with 0 or 1? ​
Sever21 [200]

Answer:

at least 99

Step-by-step explanation:

each number starting from 2 can be moved 11 times per thing.

4 0
3 years ago
Which expression is equivalent to (3−2²)+5? 5−3²
maw [93]

Answer:

your answer is attached

8 0
3 years ago
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