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dimaraw [331]
3 years ago
8

Write an expression to describe the sequence below. Use n to represent the position of a term in the sequence, where n = 1 for t

he first term. -10, -20, -30, -40, ...
Mathematics
1 answer:
Olin [163]3 years ago
8 0

Answer:

+- 10n

Step-by-step explanation:

✯Hello✯

↪  We need to work out the nth term rule

↪  We can do this by finding the differences between the numbers and using the rules

2A

3A+B

A+B+C

↪  (Sorry I cant draw a table for you)

↪  Using the rules and drawing a table we get the final answer

+- 10N

❤Gianna❤

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Kory bought 2 boxes of candy and 1 soda at the movies and paid $8.00.christopher bought 1 box of candy and 1 soda and paid $5.50
viva [34]
Let c represent candy and s soda. 
2c+s=8
c+s=5.5
Solving the pair of simultaneous equations by eliminating s,
c=2.5
Representing the value of c in equation 1;
5+s=8
s=3
So, a box of Candy costs 2.5 and a soda costs 3

4 0
3 years ago
Need help I don’t know how to do it
liberstina [14]
First attempt to break the top portion up so the negative signs don’t confuse you.

(2 x -2) x (-2 x -4)/ 2 x 2

= (-4) x (8)/ 4

= -32/4

= -8

*Remember that multiplying two negative numbers give you a positive number
8 0
2 years ago
If f(x)=8-10x and g(x) =5x +4, what is the value of (fog)(-2)?
swat32

Answer:

  68

Step-by-step explanation:

Any function is evaluated by putting the argument value where the variable is, then doing the arithmetic. When the argument is another function value, that function value is evaluated first.

__

<h3>f∘g</h3>

The "o" in (fog) is a stand-in for the "ring operator" (∘) which is the operator used to signify a composition. A composition is evaluated right-to-left. That means (f∘g)(x) ≡ f(g(x)). The value of g(x) is found first, and is operated on by the function f.

Writing the composition in the form f(g(x)) lets you identify the layers of parentheses. As with any expression evaluation, the Order of Operations applies. It tells you to evaluate the expression in the innermost parentheses and work your way out.

<h3>g(-2)</h3>

To evaluate (f∘g)(-2) = f(g(-2)), we must first evaluate g(-2). That is ...

  g(x) = 5x +4

  g(-2) = 5(-2) +4 = -10 +4 = -6 . . . . . put -2 where x is, do the math

<h3>f(g(-2))</h3>

Now that we know g(-2) = -6, we know this expression is ...

  f(-6) = 8 -10(-6) = 8 +60 = 68 . . . . . substitute for x in 8-10x

Then the value we're looking for is ...

  (f∘g)(-2) = 68

8 0
1 year ago
NEED HELP ASAP!!!! THANK YOU!!!
kodGreya [7K]
112 students. divide 42 by 37.5%
5 0
3 years ago
Read 2 more answers
24.7 divided 10^3 <br><br> Please help
aivan3 [116]

Answer:

2.47 yeahhh I think...........

Step-by-step explanation:

2.47 i think

7 0
2 years ago
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