2 years ago

This composite figure is made of two identical pyramids

Mathematics

1 answer:

Arisa [49]2 years ago

6 0

Answer:

C. 2

Step-by-step explanation:

hope it answers your question ! if not lmk

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10. An arithmetic sequence has this recursive formula. What is the explicit formula?

Mrrafil [7]

Answer:

$a_{n}=45-3n$

Step-by-step explanation:

Method 1:

Arithmetic sequence is in the form

$a_{n} =a_{1} +(n-1)d\\$

d is the common difference, can be found by:

$d=a_{n}-a_{n-1}=-3$

Subtituting the $a_{1}$ and $d$

You get:

$a_{n}=42+(-3)(n-1)=45-3n$

Method 2 (Mathematical induction):

Assume it is in form $a_{n}=45-3n$

Base step: $a_{1} =45-3(1)=42$

Inducive hypophesis: $a_{n}=45-3n$

GIven: $a_{n+1} =a_{n}-3$

$a_{n+1}=45-3n-3=45-3(n+1)$

Proved by mathematical induction

$a_{n}=45-3n$

5 0

3 years ago

Htdtdeyt5ey5jed6yyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuurrrrrrrrrrrrrrrrrrrrrrrrrr

raketka [301]

Answer: ok LOL thx XD

Step-by-step explanation: BRAINLIEST PLS

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3 years ago

Please help me with a simple math problem.

Tanzania [10]

You would take 7.5 and divide it by 2 which will give you C. 3.75

3 0

3 years ago

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What is 5x=-2y+6 in slope-intercept form?

Gemiola [76]

Answer:

y=-5/2x+3

Step-by-step explanation:

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3 years ago

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A doctor studies the known cancer patients in a certain town. The probability that a randomly chosen resident has cancer is foun

Alex777 [14]

Let the event 'has cancer' be C, and the event 'works for Ajax' be A.
P(C) = 0.0019. P(A) = 0.28
The events A and C are independent if P(C|A) = P(C).
P(C|A) = 0.0019 = P(C).
Therefore the answer is YES.

4 0

3 years ago