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qwelly [4]
3 years ago
11

Describe a pattern in each sequence. What are the next two terms of each sequence

Mathematics
2 answers:
Cerrena [4.2K]3 years ago
7 0

Answer:

400, 200, 100, 50,25

you are dividing each number by 2

Mice21 [21]3 years ago
5 0

Answer:

25

Step-by-step explanation:

you divide each term by 2

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FIFTY POINTS - It took 4 hours for a biker to travel from one city to another going at a certain speed. On the return trip, the
Crazy boy [7]

Answer:

Either 200 km or 160 km.

Step-by-step explanation:

Distance = speed × time

Let x = the biker's normal speed

Then

(1) d = 4x

For the return trip,

Time = distance/speed

(2)                 4.5 = 100/x + (d -100)/(x - 10)

                    4.5x = 100/x + (4x -100)/(x - 10)     Substituted (1) into (2)

                    4.5x = 100 + x(4x -100)/(x - 10)      Multiplied each side by x

          4.5x(x - 10) = 100(x - 10) + x(4x -100)      Multiplied each side by (x - 10)

          4.5x² - 45x = 100x - 1000 + 4x² -100x   Removed parentheses

          4.5x² - 45x = -1000 + 4x²                       Cancelled terms

          0.5x² - 45x = -1000     Subtracted 4x² from each side

0.5x² - 45x +1000 = 0            Added 1000 to each side

    x² - 90x +2000 = 0           Multiplied each side by 2

    (x - 50)(x - 40) = 0             Factored the quadratic

x - 50 = 0     x - 40 = 0          Applied zero product theorem

      x = 50          x = 40

Substitute in (1)

d = 4 × 50 = 200 km; d = 4  × 40 = 160 km

The distance between the two cities is either 200 km or 160 km.

Check:

   x = 50                                                    x = 40

4.5 = 100/50 + (200 - 100)/(50 - 10)     4.5 = 100/40 + (160 - 100)/(40 - 10)

4.5 = 2  + 100/40                                  4.5 = 2.5 + 60 /30

4.5 = 2 + 2.5                                         4.5 = 2.5 + 2

4.5 = 4.5                                               4.5 = 4.5  

OK

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3 years ago
How to find the area of a circle
Vlad1618 [11]

Area of a circe = Pi x radius^2

6 0
1 year ago
a ball is dropped from a height of 20 feet above the ground. The velocity v(s) of the ball after it has travelled a distance of
Lana71 [14]
<h2>We know that</h2>

The initial height is 20 feet above the ground.

The function to model the velocity is

v(s)=60s

Where <em>s</em> represents the distance in feet.

Mathematically, this function has all real numbers as a domain. However, that will no make sense for this situation, because it would use negative numbers for the distance <em>s</em> which does not make sense.

Therefore, the domain, in this case, would be all real numbers greater than or equal to zero, but less than or equal to 20.

<em>The reason for this domain is that the ball will go from 20 feet above the ground to zero feet on the ground.</em>

<em />

Using interval notation would be

D\colon\lbrack0,20\rbrack

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Answer:

click on the thing that looks like a paper clip and pick the pic u wanna post

Step-by-step explanation:

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3 years ago
What are all the fractions are equivalent to 4/12
GarryVolchara [31]
The answers are 1/3, 2/6, 3/9, 4/12
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