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
matrenka [14]
2 years ago
13

For which of the following graphs is y a function of x

Mathematics
2 answers:
Dimas [21]2 years ago
7 0

Answer:

D

Step-by-step explanation:

Draw vertical lines on your graph if they pass through more than once it is not a function.

Ugo [173]2 years ago
5 0

Answer:

D

Step-by-step explanation:

Use the vertical line test.

If 2 points have the same x coordinate, it is not a function

A fails

B fails

C fails

D passes

You might be interested in
8 times ( 18 divides 6 )
Vika [28.1K]

Answer: 24

Step-by-step explanation: 8x3=24 in which 18 divided by 6 is 3.

6 0
3 years ago
Read 2 more answers
Can someone please help me with math.
notsponge [240]

Answer:

your answer is line plot D.

Step-by-step explanation:

7 0
3 years ago
HELPPPPPP IMMA FAIL!! PLSSSSSS!!
vredina [299]

Answer:

59049

Step-by-step explanation:

5 0
3 years ago
A human body had 30 times as many platelets as white blood cells. A small sample of blood has 8×10'3 white blood cells. About ho
Contact [7]
To determine the number of platelets present in the human body, we need a relation that would relate this value to the given value above which is the number of white blood cells. Fortunately, we are given a ratio of 30. So, we use this value as follows:

number of platelets/number of white blood cells = 30
number of platelets / <span>8×10^3 white blood cells = 30
number of platelets = 240000</span>
5 0
4 years ago
A university found that of its students withdraw without completing the introductory statistics course. Assume that students reg
polet [3.4K]

Answer:

A university found that 30% of its students withdraw without completing the introductory statistics course. Assume that 20 students registered for the course.

a. Compute the probability that 2 or fewer will withdraw (to 4 decimals).

= 0.0355

b. Compute the probability that exactly 4 will withdraw (to 4 decimals).

= 0.1304

c. Compute the probability that more than 3 will withdraw (to 4 decimals).

= 0.8929

d. Compute the expected number of withdrawals.

= 6

Step-by-step explanation:

This is a binomial problem and the formula for binomial is:

P(X = x) = nCx p^{x} q^{n - x}

a) Compute the probability that 2 or fewer will withdraw

First we need to determine, given 2 students from the 20. Which is the probability of those 2 to withdraw and all others to complete the course. This is given by:

P(X = x) = nCx p^{x} q^{n - x}\\P(X = 2) = 20C2(0.3)^2(0.7)^{18}\\P(X = 2) =190 * 0.09 * 0.001628413597\\P(X = 2) = 0.027845872524

P(X = x) = nCx p^{x} q^{n - x}\\P(X = 1) = 20C1(0.3)^1(0.7)^{19}\\P(X = 1) =20 * 0.3 * 0.001139889518\\P(X = 1) = 0.006839337111

P(X = x) = nCx p^{x} q^{n - x}\\P(X = 0) = 20C0(0.3)^0(0.7)^{20}\\P(X = 0) =1 * 1 * 0.000797922662\\P(X = 0) = 0.000797922662

Finally, the probability that 2 or fewer students will withdraw is

P(X = 2) + P(X = 1) + P(X = 0) \\= 0.027845872524 + 0.006839337111 + 0.000797922662\\= 0.035483132297\\= 0.0355

b) Compute the probability that exactly 4 will withdraw.

P(X = x) = nCx p^{x} q^{n - x}\\P(X = 4) = 20C4(0.3)^4(0.7)^{16}\\P(X = 4) = 4845 * 0.0081 * 0.003323293056\\P(X = 4) = 0.130420974373\\P(X = 4) = 0.1304

c) Compute the probability that more than 3 will withdraw

First we will compute the probability that exactly 3 students withdraw, which is given by

P(X = x) = nCx p^{x} q^{n - x}\\P(X = 3) = 20C3(0.3)^3(0.7)^{17}\\P(X = 3) = 1140 * 0.027 * 0.002326305139\\P(X = 3) = 0.071603672205\\P(X = 3) = 0.0716

Then, using a) we have that the probability that 3 or fewer students withdraw is 0.0355+0.0716=0.1071. Therefore the probability that more than 3 will withdraw is 1 - 0.1071=0.8929

d) Compute the expected number of withdrawals.

E(X) = 3/10 * 20 = 6

Expected number of withdrawals is the 30% of 20 which is 6.

5 0
3 years ago
Other questions:
  • Joe's pizzeria sells pizzas topped with olivies. To stay within budget, number of olives on each pizza is given by the equation
    12·2 answers
  • The mass of the container is 5.81 kilograms when completely filled with sugar. The mass of the container is 3.8 kilograms when 3
    13·1 answer
  • The number of pieces of popcorn in a large movie theater popcorn bucket is normally distributed, with a mean of 1610 and a stand
    9·2 answers
  • -3(1-2x)=3x+3(x-3)+6
    12·1 answer
  • 0.04 is 10 times as much as
    9·2 answers
  • An international company has 27,600 employees in one country. If this represents 34.8% of the company's employees, how many empl
    13·1 answer
  • The volume of a sphere is 904.32 mm3. What is the approximate volume of a cone that has the same height and a circular base with
    9·1 answer
  • Can someone please help ​
    11·1 answer
  • Which one should I choose
    5·2 answers
  • A ferris wheel can accommodate 54 people in 2/5 hours.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!