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Artist 52 [7]
3 years ago
13

Which equation represents the nth term of the sequence {2,1,-4,-7...}.

Mathematics
2 answers:
Gemiola [76]3 years ago
8 0

Answer:

n=-3n+5

Step-by-step explanation:

melomori [17]3 years ago
7 0

Answer:

D

Step-by-step explanation:

I can only answer this if the second term is -1

a = 2

d = -3

t_n = a + (n - 1)*-3

t_n = 2 + -3n + 3

t_n = 5 - 3n      or

t_n = - 3n + 5

That's D

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A car rental company charges rs 500 a day
Montano1993 [528]

Answer:

total bill=1644

let he drives x kilometer

then

500*2+8*x=1644

1000+8x=1644

8x= 1644-1000

8x= 644

x= 644/8=80.5 km

Step-by-step explanation:

8 0
3 years ago
Plz help no links :)
Ilya [14]

Answer:

C) f(x) = 6.25x + 3

Step-by-step explanation:

In order to know which one of the functions could produce the results in the table we simply need to substitute the number of candy bars for x in the function and solve it to see if it provides the correct total weight shown in the table. If we do this with the functions provided we can see that the only one that provides accurate results would be

f(x) = 6.25x + 3

We can input the # of candies for x and see that it provides the exact results every time as seen in the table.

f(x) = 6.25(1) + 3 = 9.25

f(x) = 6.25(2) + 3 = 15.50

f(x) = 6.25(3) + 3 = 21.75

f(x) = 6.25(4) + 3 = 28

4 0
3 years ago
Write 10 1/2 as a decimal number
VikaD [51]

Answer:

10.5

Step-by-step explanation:

1/2 as a decimal is 0.5

so 10 is a whole number so i dont have to change it.

then answer is 10.5

7 0
4 years ago
Read 2 more answers
(-7/10) - 2/5<br> HELP!!
Juli2301 [7.4K]

Answer:

-11/10

Step-by-step explanation:

-7/10-2/5

-7/10-4/10

-11/10

3 0
3 years ago
If the circumference of the circle above is 31.4 units, what is the area? (Use 3.14 for .) A. 62.8 units B. 78.5 units C. 985.96
jenyasd209 [6]

Answer:

78.5 units

Step-by-step explanation:

To find the area of a circle the formula is πr"2"

First we have to find the diameter the find the radius. We already know that the circumference is 31.4 what we have to do now is work backwards. ( 31.4 / 3.14=10) If the diameter of a circle is 10 the radius is 5. now we just have to follow  πr"2" to find the area of a circle. (5"2"= 25 x 3.14= 78.5 units)

6 0
3 years ago
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