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Sunny_sXe [5.5K]
3 years ago
8

Which is the graph of f(x) = 100(0.7)*?

Mathematics
1 answer:
mario62 [17]3 years ago
3 0

Answer and Step-by-step explanation:

Here's~the~answer~to~your~question!

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The domain and range of 5x squared plus 10x what is the domain and range of f of x equals 5x squared plus 10x
liberstina [14]

Answer:

Domain:  set of all real numbers

Range:  y \geq  -5

Step-by-step explanation:

We have to find the domain and range of the function:

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

This is a quadratic function, shape of a "U", that's called a parabola.

The domain is the set of x values for which the function is defined.

The range is the set of y values for which the function is defined.

Normally, any parabola in the form  ax^2+bx+c  has domain as "all real numbers". This is the case for this problem as well, thus,

Domain = set of all real numbers

Now, for the range, we have to look at the minimum value of the function. So, the range would be y values greater than or equal to the minimum number. Lets find the minimum value of this function.

We have to find the value of x for which the minimum occurs by using the formula:

x=\frac{-b}{2a} =\frac{-10}{2(5)} =-1

<em><u>Note: value of a is "5" and b is "10"</u></em>

Now, we plug this into the function to find the minimum value:

f(x)=5x^2+10x\\f(-1)=5(-1)^2 +10(-1)\\f(-1)=-5

So, the range is set of all real numbers greater than or equal to -5.

8 0
3 years ago
Edison, Pedro and Karl ran a 5K race. Pedro finished two minutes before Karl. Karl finished one minute before Edison. Therefore,
olga55 [171]
Sorry Fam I  Tried Hope You Get The Answr Your Looking For!
8 0
3 years ago
I need help figuring out when to use law of sine or law of cosine?
irina [24]
When you have angle and its corresponding (opposite) side then you need to use law of  sin. Problems 3,4,5(in 5 you need at first find angle X=180-92-62)


when you have two sides and angle between them, this is law of cos, problem 6,8

problem 7 you can use both, but if you can use both better to use law of sin, it is just easier
4 0
3 years ago
Please help. Thank you.
Trava [24]

Answer:

By the Pythagoras theorem, the hypotenuse (c), is equivalent to:

a^2+ b^2= c^2 where a and b are the other two sides of the right angled triangle, hence c= square root (15^2+ 20^2)= 25

4 0
3 years ago
PLEASE HELP!! i'm writing a test and i have no idea how to do this. (I'm giving 30 points)
Vesna [10]

Answer:

12/y

Step-by-step explanation:

if you see in the picture the first three numbers 3,6 and 9 you add 3 in each number like 3+3=6 then 6=3 = 9 and 9 + 3 = 12 and so on. ( 45 also comes in this pattern )

have a wonderful day

8 0
2 years ago
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