1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Marta_Voda [28]
3 years ago
12

The table below shows the fourth roots of different numbers: Number (x) 16,16,81,81 Fourth root of the number (y) 2 −2 3 −3 Part

A: Does the table represent y as a function of x? Justify your answer. (5 points)
Part B: The total cost f(x), in dollars, for renting a truck for x hours is shown below:

f(x) = 25x + 16

What is the value of f(20) and what does f(20) represent? (5 points)
Will mark brainlyest
Mathematics
2 answers:
MA_775_DIABLO [31]3 years ago
6 0
Part A) Y cannot be described as a function of x, because in order to be a function, there can only be one input, the x value, for every output, f(x) or the y value. Since the x value, 16, generates two y values, -2 and 2, this cannot be called a function. 

Part B) 
<span>f(x) = 25x + 16
f(20)= 25(20) + 16
f(20) = 500 + 16
f(20) = 516

This is the total cost, in dollars, of renting the truck for 20 hours. </span>
Alla [95]3 years ago
5 0
A: The table does represent y as the table is x as a function for why to the answer to part A is no. X in this case is depending on what y is.

B: f(20)= 25(20)+16

F(20)=500+16
F(20)= 516

The value f(20) let’s you know what you plug in for x.

You might be interested in
What is the slope of the line through the points (4, 2) and (-16, -6)?
Harrizon [31]
Gradient = change in y /change in x so -6-2 =-8 / -16-4 = -20 so -8/-20 = 0.4 so gradient = 0.4
3 0
2 years ago
1. The coordinates of the vertices of parallelogram RMBS are R(–4, 5), M(1, 4), B(2, –1), and S(–3, 0). Using the diagonals, pro
Whitepunk [10]
First, plot the points. Point R would be somewhere in the second Quadrant, point M would be in the first quadrant 1, point B would be in the fourth quadrant, and point S would be on the negative y-axis. A property of rhombi is that their diagonals are perpendicular. One would need to calculate the slopes of the diagonals and determine whether or not they are perpendicular. Lines are perpendicular if and only if their slopes are opposite reciprocals. Example: 2 and -0.5
Formulas needed:
Slope formula:
\frac{ y_{2}- y_{1}  }{ x_{2} - x_{1} }

The figure would look kinda like this:
      R
                  M
  
          S
                       B
 Diagonals are segment RB and segment SM
So, your slope equations would look like this:
 \frac{-1-5}{2-(-4)}
and
\frac{4-(-3)}{1-0}
Slope of RB= -1
Slope of SM=7
Not a rhombus, slopes aren't perpendicular. But this figure may very well be a parallelogram
7 0
3 years ago
A car leaves a city with a speed of 90 mph. Three hours later and our of the same city another car in pursuit of the first leave
Hunter-Best [27]
The second car is 30 minutes
7 0
3 years ago
Solve for x 4x(x+1)=(2x-3)(2x+5)
natima [27]

The pic is your answer.

5 0
2 years ago
Write all the prime numbers between 10 and 30.​
insens350 [35]
It's 11, 13, 17, 19, 23 and 29.
5 0
3 years ago
Other questions:
  • Round 84.066 to the nearest tenth
    8·2 answers
  • 20.) What is the solution of the system of equations?
    12·1 answer
  • What is the constant of proportionality in the equation y=5x
    11·2 answers
  • Wendy is paid $12 per hour and plans to work between 30 and 35 hours per week.identify the independent and dependent quantity in
    15·1 answer
  • What me the answer to s-8=9
    14·2 answers
  • 500 grams of quarters
    6·1 answer
  • the temperature fell 16 degrees fahrenheit from 50 to 34 degrees in 10 hours. How much would the temperature fall over 15 hours
    7·1 answer
  • Can you help me please ​
    7·1 answer
  • Simplify -121<br> O-111<br> O 11<br> O-11<br> O 11
    6·2 answers
  • In one day, The Tool Shed rented out 25 self-propelled and riding mowers for a total fee of $900. The dolly rental cost was $20
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!