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Brut [27]
3 years ago
13

How do you write 3,390 in scientific notation? x 10

Mathematics
1 answer:
stepan [7]3 years ago
5 0

Answer:

3.39 × 10^{3}  

Step-by-step explanation:

Move the decimal so there is one non-zero digit to the left of the decimal point. The number of decimal places you move will be the exponent on the 10. If the decimal is being moved to the right, the exponent will be negative. If the decimal is being moved to the left, the exponent will be positive. Since the decimal is going right, the exponent will be positive

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Find an input that yield an output of -1 rule y=-2x+33
djyliett [7]

Input (x-value)

Output (y-value)

You need to find the x-value that produces a y-value of -1. Since you know:

y = -1       Use the rule, and substitute/plug this into the equation

y = -2x + 33       Plug in -1 for "y" in the equation since y = -1

-1 = -2x + 33        Subtract 33 on both sides

-1 - 33 = -2x + 33 - 33

-34 = -2x      Divide -2 on both sides to get "x" by itself

\frac{-34}{-2}=\frac{-2x}{-2}

17 = x

An input of 17 yields an output of -1

3 0
3 years ago
Jack's annual salary increased by 10 percent and Arnie's decreased by 5 percent. If their annual salaries were equal in 2011 Arn
Ivenika [448]
15 percent I'm pretty sure correct me if wrong plz

7 0
3 years ago
The nth term of a sequence is 2n-1.
Zinaida [17]

Answer:

25,31,37

Step-by-step explanation:

n should be positive integer number. The three numbers in both sequences have different term number n but same value. We can equalize each nth term in the question to "a" which represents one of the three numbers.

a=2n-1, then n=(a+1)/2

a=3n+1, then n=(a-1)/3

remember the two n above are different but both should be positive integer. That means, we have to find the "a" number that gives me an integer n for the first equation. The possible numbers between 20 to 40 are 22,25,28,31,34,37,40.

The possible numbers for the second equation are 21,23,25,27,29,31,33,35,37,39.

Now find the common numbers between the two sets above. They are 25,31,37

6 0
3 years ago
The asymptote of the function f(x) = 3x + 1 – 2 is . Its y-intercept is
Alekssandra [29.7K]

Answer:

-1

Step-by-step explanation:

1-2=-1

y=mx+b

b= y intercept

5 0
3 years ago
Read 2 more answers
Factor this expression completely 9x^2- y^2
Nina [5.8K]

Answer:

(3x - y)(3x + y)

Step-by-step explanation:

Both 9x^2 and y^2 are perfects squares.

The rule for factoring perfect squares is a^2 - b^2 = (a - b)(a + b).

Here, factoring (3x)^2 - y^2 results in (3x - y)(3x + y).

7 0
4 years ago
Read 2 more answers
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