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
Pani-rosa [81]
3 years ago
13

What is the domain and range of f(x)=2.5x when x goes up to 800

Mathematics
1 answer:
Mandarinka [93]3 years ago
3 0

Answer:

Domain:  all real numbers.  Range:  (-∞, 2000]

Step-by-step explanation:

f(x)=2.5x is a simple "ramp" function, a linear function and a polynomial.  As such, its domain contains "all real numbers."  That value 800 defines the largest value that this f(x) can have:  f(800) = 2.5(800)  = 2000.  

Thus, the range is "all real numbers from -∞ through and including 2000."

You might be interested in
Find the 7th term of the arithmetic sequence 4x + 5, 11x + 9,18x + 13, ...
Svet_ta [14]

Step-by-step explanation:

we see the common difference is

a2-a1 = 11x + 9 - 4x - 5 = 7x + 4

an = an-1 + (7x+4) = a1 + (n-1)×(7x+4)

for a7 we have then

a7 = 4x + 5 + 6×(7x +4) = 4x + 5 + 42x + 24 = 46x + 29

5 0
2 years ago
Pls help meeeee thank you
Alex787 [66]

Answer:

Step-by-step explanation: learn yourself yw -dabay

6 0
3 years ago
The vertices of rhombus DEFG are D(1,4), E(4,0), F(1,-4), and G(-2,0).
Usimov [2.4K]

Answer: 20 units

Step-by-step explanation:

4 0
3 years ago
Please help me! Anyone?
shtirl [24]

Answer:

118°

Step-by-step explanation:

E=180-145=35

C=180-132=48

D=720-150-100-145-35-48=242

x=360-242=118

6 0
3 years ago
Read 2 more answers
Raymond wanted to buy 8 t-shirt but he was short of $8.10. instead he bought 5 T-shirt and had $12.60 left. how much would he ne
kvv77 [185]

Answer:

$138

Step-by-step explanation:

Let the money with Raymond be $y

Let the cost of 1 tshirt be $x

then cost of 8 tshirt = cost of 1 t-shirt*8 = 8x

Raymond wanted to buy 8 t-shirt but he was short of $8.10

It means that 8x is equal to money he had plus $8.10

thus,

y + 8.10 = 8x

y = 8x - 8.10

Next situation

cost of 5 t-shirt = 5x

. instead he bought 5 T-shirt and had $12.60 left,

it means cost of 5 T-shirt plus $12.60 = total money Raymond had

y = 5x + 12.60

comparing y in both the equation

y = 8x - 8.10 and y = 8x - 8.10

5x + 12.60 =  8x - 8.10

=> 8x-5x = 12.60+8.10

=> 3x = 20.70

=> x = 20.70/3 = 6.9

Thus, cost of 1 T-shirt = $6.9

cost of 20 T-shirt = 20*$6.9 = $138  (Answer)

6 0
3 years ago
Other questions:
  • What is h(-4) for h(x) =(x-2)^2 +3x
    5·1 answer
  • What kinetic energy has a 4kg shootput thrown with a velocity of 12m/s
    8·2 answers
  • 9999999999999999999999999999999999999+888888888888888888888888888888888888
    11·1 answer
  • SOMEONE PLEASE HELP MEEE!!!
    7·1 answer
  • What is the least common multiple for 4 and 5 and also <br>5,6and 7
    5·1 answer
  • What is 4-2x+8+5x simplified
    11·2 answers
  • What is the image point of (3, – 7) after the transformation D3 o R180° ?​
    5·1 answer
  • Pls help me answer this :(
    12·1 answer
  • a line with the slope of -5 passes through the points (-3, -5) and (-4, teat parentheses. What is the value of t​
    8·1 answer
  • Please helpppp!!! Find the area of the irregular figure
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!