Answer:
![123,456,789 = 1.23456789\times 10^8](https://tex.z-dn.net/?f=123%2C456%2C789%20%3D%201.23456789%5Ctimes%2010%5E8)
Step-by-step explanation:
It is required to find the value of the missing exponent in the below value i.e.
![123,456,789 = 1.23456789\times 10^x](https://tex.z-dn.net/?f=123%2C456%2C789%20%3D%201.23456789%5Ctimes%2010%5Ex)
Let the exponent is x.
Any number can be written in the scientific notation as :
![N=a\times 10^b](https://tex.z-dn.net/?f=N%3Da%5Ctimes%2010%5Eb)
a is a real number
b is any integer
In this case, the decimal is applied before 8 numbers. It means that the value of x is 8.
Answer:
Option B.
Step-by-step explanation:
Note: The function f(x) is not in correct format it must be
.
It is given that two different plants that grow each month at different rates are represented by the functions f(x) and g(x).
Let as consider the two functions,
![f(x)=3^x](https://tex.z-dn.net/?f=f%28x%29%3D3%5Ex)
![g(x)=5x+12](https://tex.z-dn.net/?f=g%28x%29%3D5x%2B12)
Now, table of values is
Month(x)
![g(x)=5x+12](https://tex.z-dn.net/?f=g%28x%29%3D5x%2B12)
1 3 17
2 9 22
3 27 27
4 81 32
From the above table it is clear that in first and second month the height of the f(x) plant is less than of g(x).
In month 3, heights are equal.
In month 4, height of the f(x) plant exceed that of the g(x) plant.
Therefore, the correct option is B.
Changing from negative to positive
Answer:
2.Solve for the first variable in one of the equations, then substitute the result into the other equation.
Point Form:
(
3
,
5
)
Equation Form:
x
=
3
,
y
=
5
3.Solve for the first variable in one of the equations, then substitute the result into the other equation.
Point Form:
(
2
,
8
)
4.Solve for the first variable in one of the equations, then substitute the result into the other equation.
Point Form:
(
2
,
−
3
)
Step-by-step explanation: