A vendor has 30 umbrellas to sell. He sells them for $20 each. The function m(u) = 20u models the total amount of money the vendor makes from selling u umbrellas. What are the practical domain and range of the function?
Answers
Answer:
Step-by-step explanation:
Domain={0,30},Range={0,600
Total number of umbrellas=3
Price for each umbrella is =$20
m(u)=20u
as we know
u = umber of umbrellas
m(u) total amount vendor makes by selling u number of umbrellas
So Practically,The extreme cases are
when the vendor sells 0 umbrellas/ no umbrellas
when he sells all the umbrellas
So Domain is {0,total number of umbrellas}={0,30}
Putting this extreme value of domains as u in function m(u),
we get the range of m(u)={0$20,30$20}
⇒ Range={0,$600}
Answer:
domain 0,30 range 0,600
Step-by-step explanation:
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$34, then she rented the bike for how
many hours?
Answers
Answer:
7 hours
Step-by-step explanation:
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Answers
Answer:
Scientific Notation : 3.456 × 10^3
Answers
Answers
Answer: s = 6 or s = -7
Step-by-step explanation:
Our task is to find the number. But first, let's write the equation:
The square of a number s plus the number is 42.
The square of s =
Plus s =
this equals 42:
Now, let's solve for s. Subtract 42 from both sides, and set the right-hand side equal to 0.
Now, let's factor it.
Think of two numbers that:
- multiply to -42
- add up to 1
These numbers are 6 and -7.
So, the factored expression is :
(s + 6)(s - 7) = 0
Either s + 6 is 0 or s - 7 = 0.
We have two little equations that we can solve for s:
s + 6 = 0 s - 7 = 0
s = 0 - 6 s = 0 + 7
s = -6 s = 7
Final answer:
To find the number(s) that satisfy the equation x^2 + x = 42, you can factorize the quadratic equation (x + 7)(x - 6) = 0 and solve for x. The solutions are x = -7 and x = 6.
Explanation:
To find the number(s) that satisfies the equation, let's represent the number as 'x'. According to the question, the square of the number plus the number is equal to 42. This can be written as x^2 + x = 42. Rearranging the equation, we get x^2 + x - 42 = 0. To solve this quadratic equation, we can factorize it or use the quadratic formula.
Factoring the quadratic equation, we find (x + 7)(x - 6) = 0. Setting each factor equal to zero, we get x + 7 = 0 and x - 6 = 0. Solving these equations, we find x = -7 and x = 6.
Therefore, the number(s) that satisfy the equation are x = -7 and x = 6.
Learn more about Finding solutions to a quadratic equation here:
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A. 11
B. 3
C. -17
D. -1
Answers
-(-3)^2 -4(-3)
= - 9 + 12
= 3
answer is B. 3
Answers
-5x = 4 Divide both sides by -5
x = -4/5
... That is the answer I got for x...