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2 years ago

What is the a10 of an=-3n-3?? PLEASE SOME HELP

Mathematics

1 answer:

Andrew [12]2 years ago

8 0

The 10th terms of given arithmetic sequence is -33

Further explanation:

The arithmetic sequence is a sequence where common difference is same for all consecutive terms.

An explicit formula is a general formula that is used to calculate terms of an arithmetic sequence directly.

Given

$a_n=-3n-3$

Here n is the term number

As we have to find the 10th term, we will put n=10

$a_{10}=-3(10)-3\\=-30-3\\=-33$

The 10th terms of given arithmetic sequence is -33

Keywords: Arithmetic sequence, Explicit formula

Learn more about arithmetic sequence at:

#learnwithBrainly

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denis-greek [22]

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2 years ago

When you add their numbers together you get 207 . Jen's number is 9 more than Carrie's, and Fran's number is 3 less than Jen's n

murzikaleks [220]

Answer: Fran's number is 70

Step-by-step explanation:

Let x represent Jen's number.

Let y represent Carrie's number.

Let z represent Fran's number.

When you add their numbers together you get 207. This means that

x + y + z = 207 - - - - - - - - - -1

Jen's number is 9 more than Carrie's number. It means that

y = x - 9

Fran's number is 3 less than Jen's number. It means that

z = x - 3

Substituting y = x - 9 and z = x - 3 into equation 1, it becomes.

x + x - 9 + x - 3 = 207

3x - 12 = 207

3x = 207 + 12 = 219

x = 219/3 = 73

y = x - 9 = 73 - 9

y = 64

z = x - 3 = 73 - 3

z = 70

8 0

2 years ago

726,000 scientific notation<br><br>

il63 [147K]

Answer:

7.26000 × $10^{5}$

I hope this helps!

3 0

2 years ago

Read 2 more answers

A quadratic equation has a

11111nata11111 [884]

Answer:

$\boxed {\boxed {\sf 2 \ real \ solutions }}$

Step-by-step explanation:

The quadratic formula is:

${x = \frac{{ - b \pm \sqrt {b^2 - 4ac} }}{{2a}}}$

The discriminant of a quadratic is just the expression under the square root, or $b^2-4ac$ . This can tell us the number of solutions a quadratic has.

If the discriminant is:

Positive = 2 real solutions
Equal to Zero = 1 real double/repeated solution
Negative = 0 real solutions, but 2 imaginary solutions

Our quadratic equation has a discriminant of 5, which is positive. Therefore, it has 2 real solutions.

6 0

2 years ago

4n-3=-2n+9 What is the value of the variable 'n'?

julsineya [31]

4n - 3= -2n + 9
add 3n to both sides

4n= -2n +12
add 2n to both sides

6n= 12
divide both sides by 6

n= 2

Check:
4n-3=-2n+9
4(2)-3= -2(2)+9
8-3= -4+9
5=5

Hope this helps! :)

7 0

3 years ago