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shusha [124]
3 years ago
14

Here are the first four terms of an arithmetic sequence. 3 10 17 24 Find, in terms of n, an expression for the nth term of this

arithmetic sequence.
Mathematics
1 answer:
ollegr [7]3 years ago
8 0

Answer:

a_{n} = 7n - 4

Step-by-step explanation:

The n th term of an arithmetic sequence is

a_{n} = a₁ + (n - 1)d

where a₁ is the first term and d the common difference

Here a₁ = 3 and d = a₂ - a₁ = 10 - 3 = 7 , thus

a_{n} = 3 + 7(n - 1) = 3 + 7n - 7 = 7n - 4

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2. Evaluate each expression:<br> a.-1.2.3 -<br> b.-1. (-2) 3<br> C. -1 • (-2).(-3)
rodikova [14]

Answer:

a. -6

b. +6

c. -6

Step-by-step explanation:

minus times plus times plus = -

minus times minus times plus = +

minus times minus times minus = -

1 times 2 times 3 = 6

so:

-1 times 2 times 3 = -6

-1 times -2 times 3 = +6

-1 times -2 times -3 = -6

3 0
2 years ago
Are there any prime numbers that are also square numbers
cestrela7 [59]
The definition of a prime number is one in which there are no factors other than 1 and itself. For example, 5 has no other factors other than 1 and 5 (itself).

The number 1 is not considered prime nor composite.So, even though it is a square (1²), it is not a prime number.

All square numbers have a square root that is neither 1 nor itself: 16 is the square of 4, 49 the square of 7, and so on.

Due to the fact that square numbers have factors other than 1 and itself, square numbers are not prime.

Hope this helps! :)
8 0
3 years ago
Read 2 more answers
HELP ASAP LIKE RIGHT NOWWWW ITS A QUIZ
crimeas [40]

Answer x=30

Step-by-step explanation:

3 0
3 years ago
Find the radius of a circle with an area of 380 in².
Likurg_2 [28]

Answer:

11 inches

Step-by-step explanation:

The area of a circle can be found using:

a=\pi r^{2}

We already know that the area is 380, so we can substitute 380 in for a.

380=\pi r^2

Now, we need to find the radius. To do this, we need to get r by itself

First, divide both sides by pi

380/\pi =\pi r^2/\pi

120.95775675=r^2

Since r is being squared, we need to take the square root of both sides

\sqrt{120.95775675}=\sqrt{r^2}

10.9980796846=r

If we round to nearest whole number, our radius is 11 inches

5 0
3 years ago
Which graph shows data that would allow the most accurate prediction for the number of water bottles a vendor sells based on the
Mashcka [7]
It is either C or D because as temperatures rise the sells would increase.
6 0
3 years ago
Read 2 more answers
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