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Maru [420]
3 years ago
15

A. X= 49/3 B. X= 21 C. X= 51 D. X= 9

Mathematics
1 answer:
Valentin [98]3 years ago
5 0
C- X=19 so I think it’s the correct answer if not I’m sorry:(
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Suppose that the function f(x)=7x+2 represents the number of cars that drive by in x minutes. How many cars will drive by in 10
vredina [299]

Answer:

c) 72

Step-by-step explanation:

  1. the function f(x)=7x+2 represents the number of cars that drive by in x minutes
  2. x = 10
  3. f(10) = 7×10+2 = 70+2 = 72

3 0
4 years ago
For each $n \in \mathbb{N}$, let $A_n = [n] \times [n]$. Define $B = \bigcup_{n \in \mathbb{N}} A_n$. Does $B = \mathbb{N} \time
andre [41]

Answer:

No, it is not.

Step-by-step explanation:

The set C = \mathbb{N} \times \mathbb{N} contains every ordered pair of Natural numbers, while B only contains those pairs in which both values in each entry are the same. Therefore, C is a bigger set than B, but B is not equal to C because for example C contains [1] \times [2] and B doesnt because 1 is not equal to 2.

4 0
3 years ago
How many ways are there to elect a president, Vice President, secretary, and treasurer, from a club with 32 members?
PIT_PIT [208]

Answer: There are 863,040 possible ways

Step-by-step explanation: There are 32 members altogether in the club. So in order to elect a president from among all of them, if every one of them has a chance if being elected, there would be 32 possible chances for every single club member.

However, as long as one member has been elected as president, that leaves others with a 31 chance per person arrangement.

Therefore, all possible permutations of electing four officers from a club of 32 members can be expressed as

32! (Thirty two factorial) which can be simplified as

32 x 31 x 30 x 29 and that equals 863,040.

863,040 possible ways of electing four officers from a club of 32 members.

3 0
3 years ago
What is an expression
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In Math: <span>the process of making known one's thoughts or feelings.
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4 0
3 years ago
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Write a problem about a trip that can be solved by estimating fractions​
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i wasted 4/5 of my gas for my brother

5 0
4 years ago
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