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Scilla [17]
3 years ago
6

Estimates show that there are 1.4x10^8 pet fish and 9.4x10^6 pet reptiles in the United States. How many pet fish and reptile pe

ts are in the United States. Answer in scientific notation.
Mathematics
1 answer:
azamat3 years ago
8 0

Answer:

There are total number of pet fish and reptile pets are 1.49\times 10^8.

Step-by-step explanation:

Number of pet fish are 1.4\times 10^8 and the number of pet reptiles are 9.4\times 10^6.

It is required to find the total number of pet fish and reptile pets in the United States. It can be done by simply adding the above numbers such that total numbers are given by :

T=1.4\times10^{8}+9.4\times10^{6}\\\\T=149400000\\\\T=1.49\times 10^8

So, there are total number of pet fish and reptile pets are 1.49\times 10^8.

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What does the quadratic function f(x)=x^2-10x+9 look like when it is rewritten in the form f(x) = a (x-h) + k
Tatiana [17]

ANSWER

When f(x)=x^2-10x+9 is written in the form f(x)=a(x-h)^2+k, it looks like f(x)=(x-5)^2-16


EXPLANATION

To write  f(x)=x^2-10x+9 in the form f(x)=a(x-h)^2+k, we have to complete the squares.


We add and subtract half the coefficient of x square.


f(x)=x^2-10x+(-5)^2-(-5)^2+9


The first three terms of the function is now a perfect square.

f(x)=(x-5)^2-25+9

We now simplify rto obtain,

\Rightarrow f(x)=(x-5)^2-16





6 0
4 years ago
Number of rides marine can go on ?
saul85 [17]

Answer:

Check step by step explanation

Step-by-step explanation:

a) Let x represent the amount of rides she takes, the 6 and 2.5 represent the amount of money required to enter

A(x) = 1.5x + 6

B(x) = 2x + 2.5

b) You can find this by making the 2 equations equal to each other and solving for x

1.5x + 6 = 2x + 2.5

3.5 = .5x

7 = x

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c) Plug in 5 for each of the equations and find out which one is cheaper

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4 0
4 years ago
Find the total weekly earnings for a waitress with a weekly salary of $257 plus a 4% commission on dinners, if the total worth o
ss7ja [257]
The waitress earns $425 weekly.

Work:
Use proportions.
x 4
------- = ------
4,200 100

4,200 x 4 = 16800
100 multiply x = 100x
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3 years ago
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Nata [24]

Answer:

The third one

Step-by-step explanation:

Its asking if its positive in the interval [-3, -2]

Which means you only look at the graph from -3, -2 on the x axis and we are looking see which one is positive in that space.  And by positive it means going up in a positive direction.  Only the third one does this.  

3 0
3 years ago
If i= the square root of -1 what is the value of i^3
BARSIC [14]

i =√-1

i^2 = -1

so

i^3

= i^2 * i

=  -1√-1

= - √-1

5 0
3 years ago
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