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
andreyandreev [35.5K]
3 years ago
8

if you are picking a number 1-20 what is the probability that you will pick an even number or multiple of three

Mathematics
1 answer:
natulia [17]3 years ago
3 0

Answer:

1/2

Step-by-step explanation:

You might be interested in
What is the length of the diagonal of a square with a side that measures 11 centimeters
timofeeve [1]
A square has 4 equal sides
use pythagroeas theorem since a square has 4 right angles

a^2+b^2=c^2
a=b because the sides are equal (11)

11^2+11^2=c^2
242=c^2
square root both sides
11√2=c

the diagonal legnth is 11√2 centimiters
4 0
3 years ago
A lake polluted by bacteria is treated with an antibacterial chemical. Aftertdays, thenumber N of bacteria per milliliter of wat
jeyben [28]

Answer:

N(1)=50 is a minimum

N(15)=4391.7 is a maximum

Step-by-step explanation:

<u>Extrema values of functions </u>

If the first and second derivative of a function f exists, then f'(a)=0 will produce values for a called critical points. If a is a critical point and f''(a) is negative, then x=a is a local maximum, if f''(a) is positive, then x=a is a local minimum.  

We are given a function (corrected)

N(t) = 20(t^2-lnt^2)+ 30

N(t) = 20(t^2-2lnt)+ 30

(a)

First, we take its derivative

N'(t) = 20(2t-\frac{2}{t})

Solve N'(t)=0

20(2t-\frac{2}{t})=0

Simplifying

2t^2-2=0

Solving for t

t=1\ ,t=-1

Only t=1 belongs to the valid interval 1\leqslant t\leqslant 15

Taking the second derivative

N''(t) = 20(2+\frac{2}{t^2})

Which is always positive, so t=1 is a minimum

(b)

N(1)=20(1^2-2ln1)+ 30

N(1)=50 is a minimum

(c) Since no local maximum can be found, we test for the endpoints. t=1 was already determined as a minimum, we take t=15

(d)

N(15)=20(15^2-2ln15)+ 30

N(15)=4391.7 is a maximum

7 0
3 years ago
PLS SEE ATTACHMENT! NEED HELP!!!
pshichka [43]

Answer:idk

Step-by-step explanation:

idk

6 0
3 years ago
Read 2 more answers
If Triangle ABC is rotated 90 degrees clockwise about the origin, what will be the new coordinates of vertex B?
quester [9]

Answer:

ithe answer to your question is going to be c

6 0
3 years ago
On another map, the distance between Saugerties and Kingston is 2 inches. What would the distance from Saugerties to Catskill be
antoniya [11.8K]
6 inches hope I helped
3 0
3 years ago
Other questions:
  • What is the sum? 3 y / Y 2 + 7 y + 10 + 2 / y + 2​
    9·1 answer
  • What is the solution set of x_&lt; or x&gt;6
    12·2 answers
  • What’s
    9·1 answer
  • What are the names of three collinear points?
    12·1 answer
  • A jar contains black and white marbles in the ratio 2:5. If the jar contains total of 35 marbles, how many of the marbles are bl
    15·1 answer
  • A house worth £80,000 in January 2012 is set to decrease in value by 7% per year.
    12·1 answer
  • Solve for EG. A) 18 B) 12 9 D) 6​
    5·1 answer
  • Round 4.776 to the nearest hundred
    6·1 answer
  • Can u guys plz give me ALL the following answers to graph 1.
    14·1 answer
  • Select all the expressions equivalent to (4x⁵)(5x⁶).
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!