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
vfiekz [6]
3 years ago
14

A ride sharing service charges $4.25 for every ride, plus $0.30 per mile. If m represents miles, which rule for p(m) models the

situation? p(m)=0.30m−4.25 p(m)=0.30m+4.25 p(m)=4.25m+0.30 p(m)=−0.30m+4.25
Mathematics
1 answer:
stiv31 [10]3 years ago
5 0

Answer: p(m) = .30m + 4.25

Step-by-step explanation:

You might be interested in
Evaluate if a= 28 and b= -3 a/4+b
patriot [66]

Answer:

4

Step-by-step explanation:

divide the numbers


subtract the numbers


final answer:
= 4

8 0
2 years ago
Solve - 2/5x is less than or equal to 20
sashaice [31]

Answer:

x is less than or equal to 0

Step-by-step explanation:

- you need to multiply both sides of the inequality by 5/2

- then you reduce the numbers with the greatest common factor 5

- then you reduce the numbers with the greatest common factor 2

- any expression multiplied by 0 equals 0

- so you get x is less than or equal to 0

^^^ hope this helps! :)

8 0
3 years ago
Use completing the square to solve for x in the equation (x+7)(x-9) = 25.
balandron [24]

Answer:

x = 1  ±√89

Step-by-step explanation:

We have the equation:

(x+7)(x-9) = 25

Using distributive property:

x(x-9) + 7(x-9) = 25

x²- 9x + 7x - 63 -25 = 0

x²- 2x - 88 = 0

To complete squares we need to add and subtract 1, as follows:

x²- 2x - 88 +1 -1 = 0

x²- 2x +1 -88 -1 = 0    (this is a perfect square)

(x - 1)² - 89 = 0

Solving for x:

(x - 1)² = 89

x - 1 = ±√89

x = 1  ±√89

6 0
3 years ago
Simplify the expression. <br><br> -1/2 + 1/6
sukhopar [10]
-1/2 = -3/6

-3/6 + 1/6 = -2/6

-2/6 = -1/3

-1/3 is your answer

hope this helps
8 0
3 years ago
Memory module consists of 9 chips. The device is designed with redundancy so that it works even if one of its chips is defective
soldier1979 [14.2K]

Answer:

a) P[C]=p^n

b) P[M]=p^{8n}(9-8p^n)

c) n=62

d) n=138

Step-by-step explanation:

Note: "Each chip contains n transistors"

a) A chip needs all n transistor working to function correctly. If p is the probability that a transistor is working ok, then:

P[C]=p^n

b) The memory module works with when even one of the chips is defective. It means it works either if 8 chips or 9 chips are ok. The probability of the chips failing is independent of each other.

We can calculate this as a binomial distribution problem, with n=9 and k≥8:

P[M]=P[C_9]+P[C_8]\\\\P[M]=\binom{9}{9}P[C]^9(1-P[C])^0+\binom{9}{8}P[C]^8(1-P[C])^1\\\\P[M]=P[C]^9+9P[C]^8(1-P[C])\\\\P[M]=p^{9n}+9p^{8n}(1-p^n)\\\\P[M]=p^{8n}(p^{n}+9(1-p^n))\\\\P[M]=p^{8n}(9-8p^n)

c)

P[M]=(0.999)^{8n}(9-8(0.999)^n)=0.9

This equation was solved graphically and the result is that the maximum number of chips to have a reliability of the memory module equal or bigger than 0.9 is 62 transistors per chip. See picture attached.

d) If the memoty module tolerates 2 defective chips:

P[M]=P[C_9]+P[C_8]+P[C_7]\\\\P[M]=\binom{9}{9}P[C]^9(1-P[C])^0+\binom{9}{8}P[C]^8(1-P[C])^1+\binom{9}{7}P[C]^7(1-P[C])^2\\\\P[M]=P[C]^9+9P[C]^8(1-P[C])+36P[C]^7(1-P[C])^2\\\\P[M]=p^{9n}+9p^{8n}(1-p^n)+36p^{7n}(1-p^n)^2

We again calculate numerically and graphically and determine that the maximum number of transistor per chip in this conditions is n=138. See graph attached.

6 0
4 years ago
Other questions:
  • Fins the quontient 5)47 and it has to have a remander plzzzzzzzz help meeeee!!!!!!;
    15·2 answers
  • Victor has saved $89.25 for the bicycle that he wants. The bicycle costs $129.85. Victor
    13·1 answer
  • Which expression is equivalent to 2/7y(k-7) ? Assume k does not equal 0
    15·1 answer
  • Find the value of each variable. Round your answers to the nearest tenth. (Soh Coh Toa)
    8·2 answers
  • Drag each scenario to show whether the final result will be greater than the original value, less than the original value, or th
    11·1 answer
  • A closed box has a square base with side length feet and height feet. Given that the volume of the box is cubic feet, express th
    15·1 answer
  • PLS HELP I NEED THIS ASAP PLS ANSWER CORRECTLY!!!!! THE QUESTION IS IN THE PICTURE BELOW!!!
    12·2 answers
  • ILL MARK YOU BRAINLIEST PLEASEEEEEEEW HELPPPPSJSOSJSB compare the expressions 7+3^2- 2•5 and (3/4+1/8) divided by 1/8 using &lt;
    7·1 answer
  • What us the slope of this line
    10·1 answer
  • Simplify the expression to a polynomial in standard form. (X+1)(3x^2+9x+2)
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!