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3 years ago

The nth term of a sequence is 3−2n Work out the 8th term of the sequence

Mathematics

1 answer:

seraphim [82]3 years ago

7 0

Answer:

-13

Step-by-step explanation:

3-2n

3-2×8

3-16

-13

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Which of the following is not a fundamental identity?

Brilliant_brown [7]

Answer:b

Step-by-step explanation:

Given

Option a is correct because it is Pythagorean identity

$1=\sin^2\theta +\cos^2\theta$

Option b is incorrect because

$\tan \theta =\frac{\sin \theta }{\cos \theta }$

Option c and d are correct because c is Pythagorean identity .

5 0

3 years ago

Help I will Give Brainliest if Correct!

Leni [432]

Answer:

8.5 units

Step-by-step explanation:

(-1, 1) squared + (7,4) squared = formula

Distance 8.5 is rounded to the nearest 10

7 0

3 years ago

Plz plz someone help me out with this

kvasek [131]

Answer:

option D

$a_{1}=6561 and a_{n}=\frac{1}{3}a_{n-1}$

Step-by-step explanation:

$a_{3} = 729\\\\a_{4} = 243\\\\r = \frac{a_{4}}{a_{3}}\\\\r=\frac{243}{729}\\\\r=\frac{1}{3}$

Recursive rule: Next term is obtained by multiplying (1/3) wiht the previous term

$a_{n}=\frac{1}{3}*a_{n-1}$

$a_{3} = \frac{1}{3}*a_{2}\\\\\\729 = \frac{1}{3}*a_{2}\\\\\\729*3=a_{2}\\\\a_{2} = 2187\\\\\\$

$a_{2}=\frac{1}{3}*a_{1}\\\\\\2187=\frac{1}{3}*a_{1}\\\\\\2187*3=a_{1}\\\\a_{1}=6561$

7 0

3 years ago

26)

Elenna [48]

Answer: |-0.345|

The absolute value of |-0.345| is 0.345

0.345 > 0.325

Therefore B is Correct.

A,C,D are incorrect because when finding the absolute value of each number 0.325 will still be bigger.

A) |-0.285| = 0.285

0.285 < 0.325

C) |0.299| = 0.299

0.299 < 0.325

D) |0.325| = 0.325

0.325 = 0.325

5 0

4 years ago

18% of what number is 46.8?

Rasek [7]

The answer is 260 have a good day.
I love it when people ask me these questions.

8 0

3 years ago

Read 2 more answers