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astraxan [27]
2 years ago
13

If a1 = 7 and an = -2an-1 then find the value of a5

Mathematics
1 answer:
alukav5142 [94]2 years ago
7 0

Answer:

a_1 = 7 \\ a_n =  - 2a_{n - 1} \\ a_2 =  - 2a_1 =  - 2(7) =  - 14 \\ a_3 =  - 2a_2 =  - 2( - 14) = 28 \\ a_4 =  - 2a_3 =  - 2(28) =  - 56 \\ a_5 =  - 2a_4 =  - 2( - 56) = 112

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Please help me c:
netineya [11]

Oscar played games vs number of points he scored is, C) positive, linear association.

Step-by-step explanation:

  • no association is when points Oscar graph will remain between 8to10.
  • number of games he scored his points remain the same which is mean.
  • non linear is only when there is no straight line passing.
  • Linear is either exponential or polynomial.
  • Positive as the game increase he scoring abilities increases.
  • Negative as the game increases his scoring decreases.
  • Negative x axis will have more number of points.
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8 0
3 years ago
A rectangular floor is 18ft long and 12 ft wide. Lamar wants to carpet the floor with carpet tiles sold by square yard. Use the
WITCHER [35]

Solution

The dimension of the rectangular floor is 18ft long and 12 ft wide

Using the conversion table

It is given that 1yd =3 ft

This shows that

12 feet will be equivalent to

\frac{12}{3}=4yd

Also 18ft will be equialent to

\frac{18}{3}=6yd

Therefore the new dimension is 6 yard by 4 yard

The area will be

A=6\times4

Therefore the required area is

A=24yd^2

5 0
1 year ago
Write -1/19, 7/4, -4/7 from least to greatest
zysi [14]

Answer:

-4/7, -1/19, 7/4

Step-by-step explanation:

The fractions converted into decimals would be -0.05, 1.75, -0.57

4 0
3 years ago
Find the probability of rolling a 6 on a number cube and flipping heads on a coin
serious [3.7K]

Assuming that the number cube is 6 sided

6 is one number in a 6 sided cube, so the probability is: 1/6

heads is one side of the coin, with two in all: 1/2

Multiply the two fractions together

1/6 x 1/2 = 1/12

1/12 is your probability

hope this helps

4 0
3 years ago
Read 2 more answers
Please help me with this question
Alex17521 [72]

Answer:

The answer is C.

Step-by-step explanation:

5*6=30

5 0
3 years ago
Read 2 more answers
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