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3 years ago

R1 - Writing and using formulae

Mathematics

1 answer:

svetlana [45]3 years ago

8 0

Answer:

im trying to do a challenge because this kid deleted all my answers

Step-by-step explanation:

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A spinner is divided into five congruent sections, numbered 1 through 5. If the arrow on the spinner is spun, what is the probab

Snowcat [4.5K]

D.2/5 because 3/5 are odd so the remaining 2 are even so 2/5 are not odd!

6 0

3 years ago

Enter a recursive rule for the geometric sequence. 6, −18, 54, −162, ...

svlad2 [7]

Answer:

The required recursive formula is:

$a_n=(-3)\times a_{n-1}$

Step-by-step explanation:

We are given a geometric sequence as:

6,-18,54,-162,.....

Clearly after looking at different terms of the sequence we could observe that the sequence is an geometric progression (G.P.) with common ratio= -3 denoted by r.

Let $a_n$ represents the nth term of the sequence.

This means that:

$a_1=6, a_2=-18, a_3=54, a_4=-162,......$

As the common ratio is -3.

so,

$a_1=6\\\\a_2=-18=(-3)\times a_1\\\\a_3=54=(-3)\times a_2\\\\.\\.\\.\\.\\.\\.\\.\\.\\.a_n=(-3)\times a_{n-1}$

Hence, the required recursive formula for the geometric sequence is:

$a_n=(-3)\times a_{n-1}$

5 0

3 years ago

Please help :D <3. Do not understand this one.

Shtirlitz [24]

Sorry for my messy handwriting but this is the answer

8 0

3 years ago

What is the slope of the line x=5

Andre45 [30]

The slope would go vertically starting it at 5. you place your dot at 5 and draw a line going up and down throughout both the top and bottom of the right side of the graph. hope it helped

5 0

3 years ago

What is the volume of the cone with radius 5 inches and height 9 inches to the nearest cubic inch

charle [14.2K]

Answer:

236 inches^3

Step-by-step explanation:

V=πr^2 h/3

pi5^2*3

25*pi3

75pi

=235.62

7 0

3 years ago

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