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asambeis [7]
3 years ago
11

Anna learns in her science class that the human eye blinks an average of 4,200,000 times a year. What is this number expressed i

n scientific notation?
Mathematics
2 answers:
Alla [95]3 years ago
5 0
I think 4.2 x 10^6 is the answer you're looking for.
ludmilkaskok [199]3 years ago
3 0
The answer could be 4.2E6
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Solve each system of equations using substitution. #4 is done for you.
son4ous [18]

Answer:

y = 5 and x = -3

Step-by-step explanation:

Given,

y = x + 8      ...............( equation 1 )  

x + y = 2      ...............( equation 2 )

Now,  by substituting the value of y in equation 2, we get;

⇒ x + x + 8 = 2

⇒ x = -3

and now, by substituting the value of x in equation 1, we get;

⇒ y = -3 + 8

⇒ y = 5

8 0
2 years ago
The domain of a function g(x) is x < 2, and the range is y> 0. What are the
zavuch27 [327]

Answer:

B

Step-by-step explanation:

Domain and ranges of inverse functions are swapped.

Domain of the original is the range of the inverse and vice versa.

8 0
2 years ago
My dog Wrigley weighs 67.094. My brothers dog Kobe, weighs 47.940. How much more does my dog Wrigley weigh?
Viktor [21]

Answer:

19.154 :)

Step-by-step explanation:

67.094

-47.940

--------------

19.154

8 0
3 years ago
Read 2 more answers
Find an equation for the graph
Elanso [62]

Answer:

y=6^x+0.612 - 4

Step-by-step explanation:

x = -4 ---> horizontal asymptote

m = 6 ---> use points (0, -1) and (1, 5)

Parent function of the graph: y=b^x

Our equation: y=6^x

Add alterations:

  1. Reflections = N/A
  2. Vertical & horizontal shifts = down 4
  3. Vertical & horizontal stretches = left approx 0.612

Final equation: y=6^x+0.612 - 4


6 0
2 years ago
Y = (x) = (1/16)^x<br> Find f(x) when x = (1/4)
Naddik [55]

Answer:

1/2

Step-by-step explanation:

(1/16)^x

Let x = 1/4

(1/16)^ 1/4

Rewriting 16 as 2^4

(1/2^4)^ 1/4

We know that 1 / a^b = a^-b

(2 ^ -4)^ 1/4

We know that a^b^c = a^(b*c)

2^(-4*1/4)

2^-1

We know that  a^-b = 1/ a^b

2^-1 = 1/2^1 = 1/2

7 0
3 years ago
Read 2 more answers
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