Answer:
Video result for Let F(x) = 2x2 + x - 3 and g(x) = x - 1. f(x) g(x) Find and state its domain. Answers: X - 1; domain is the set of all real numbers (x-1)/(2x + 3) ; domain is the set of all real numbers except-(3/2) 2x + 3; domain is the set of all real numbers except 16:39
How to find the range of a function (video)
Khan Academy · Khan Academy
Video result for Let F(x) = 2x2 + x - 3 and g(x) = x - 1. f(x) g(x) Find and state its domain. Answers: X - 1; domain is the set of all real numbers (x-1)/(2x + 3) ; domain is the set of all real numbers except-(3/2) 2x + 3; domain is the set of all real numbers except 18:07
Domain and range of quadratic functions (video)
Khan Academy · Khan Academy
Video result for Let F(x) = 2x2 + x - 3 and g(x) = x - 1. f(x) g(x) Find and state its domain. Answers: X - 1; domain is the set of all real numbers (x-1)/(2x + 3) ; domain is the set of all real numbers except-(3/2) 2x + 3; domain is the set of all real numbers except 11:47
Domain of a radical function (video)
Khan Academy · Khan Academy
Video result for Let F(x) = 2x2 + x - 3 and g(x) = x - 1. f(x) g(x) Find and state its domain. Answers: X - 1; domain is the set of all real numbers (x-1)/(2x + 3) ; domain is the set of all real numbers except-(3/2) 2x + 3; domain is the set of all real numbers except 14:57
Determining whether values are in domain of function (video)
Khan Academy · Khan Academy
Step-by-step explanation:
First, we set up the mixed number 7 3/8 with different colors, so it is easy to follow along:
7
3
8
Step 2 - Multiply
Next, we multiply the whole number by the denominator.
7 x 8 = 56
Step 3 - Add Numerator
Then, we add the numerator to the answer we got in Step 2.
56 + 3 = 59
Step 4 - Solution
Finally, to get the solution, we keep the original denominator and make the numerator the answer from Step 3. Thus, 7 3/8 as an improper fraction is:
59
8
The function is in vertex form of a quadratic function.
Vertex form is f(x)=a(x-h)^2+k
The vertex is (h, k)
In this case, our vertex is (2, 2). The a value is positive which means that the graph points up. Since the graph points up, the vertex is the minimum, the lowest point of the graph. The range refers to y-values, so the range of the function is y/y>2. It can also be written as 2≤y<span>≤positive infinity.</span>
Answer:
1. Figure 3
2. 2881.4 cm³
Step-by-step explanation:
The graph in figure 3 has a curve that fits the data best because it captures most of the points unlike the other two curves.
The curve in figure 3 has the equation;
2.
When using x=8, substitute the value of x in the equation with 8 to get
y = -16.9*64 + 430*8 + 523
y= 2881.4
= 2881.4 cm³
So basically
D=RT
distance=rate times time
D=233
carlos speed=55
maria speed=50
total time=4.4 hours
so therefor we have to represent
carlos time
maria time
carlos distance
maria dstance
let's say that
remember that whatever carlost drove is 233 minus maria (time and distance)
and since we are solving for maria time and distnace, solve in terms of them
maria time=t
maria distance=d
carlos time=4.4-t
carlos distance=233-d
remember total D=RT
find their seperate equations
carlos
233-d=55(4.4-t)
maria
d=50(t)
use them to solve
233-d=55(4.4-t)
subsitute 50(t) for d
233-50t=55(4.4-t)
add 50t to both sides
233=55(4.4-t)+50t
distribute using distributiver protperty (a(b+c)=ab+ac)
55(4.4-t)=242-55t
233=242-55t+50t
add like terms
233=242-5t
add 5t to both sides
233+5t=242
subtract 233 from both sides
5t=9
divdie both sides by 5
t=1.8
maria drove 1.8 hours
the answer is A
