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
Neko [114]
3 years ago
6

How do you find the number of possible choices for a 2 digit password that is greater than 19?

Mathematics
1 answer:
topjm [15]3 years ago
3 0
There probably is a formula to do this, but a simple way to find this one is to just think of all two digit numbers. That is 00-99. All you do is count the number of possible choices from 20-99. So there are 80 possible choices.
You might be interested in
Using the rule of 72, how long will it take for the principal to double with an annual compound interest rate of 6%?
I am Lyosha [343]

Answer:

C. 12

Step-by-step explanation:

With the rule of 72, you would divide 72 by the periodic interest rate to get the number of years for the principal to double

72 ÷ 6 = 12

7 0
3 years ago
10th grade geometry <br> Select statements that are true about angles on diagram
Goshia [24]

Answer:

  B, C

Step-by-step explanation:

The only statements that must be true are ones that describe the markings on the diagram:

 NO as an angle bisector

  N is the vertex of a pair of congruent angles

_____

The only other fact that must be true is that segments on the left side of the diagram are proportional to those (corresponding) on the right. (This is a property of the angle bisector.) There is nothing that says the sides must be equal, or that the triangle is isosceles.

3 0
2 years ago
Use a graphing calculator to graph f(x) = x+cos(kx). Use calculus to determine which values of k lead to a function with no loca
nataly862011 [7]

Answer:

Below, you can see the graph of the function:

f(x) = x + cos(k*x)

for different values of k, as follows:

red: k = 1

green: k = 2

orange: k = 0.

Now let's find the values of k such that our function does not have local maxima nor local minima.

First, remember that for a given function f(x), the local maxima or minima points are related to the zeros of the first derivate of f(x).

This means that if:

f'(x0) = 0.

Then x0 is a maxima, minima or an inflection point.

Then if a function is such that the f'(x) ≠ 0 , ∀x, then this function will not have local maxima nor minima.

Now we have:

f(x) = x + cos(k*x)

then:

f'(x) = 1  - k*sin(k*x)

This function will be zero when:

1 = k*sin(k*x)

1/k = sin(k*x)

now, remember that -1 ≤ sin(θ) ≤ 1

then if 1/k is smaller than -1, or larger than 1, we will not have zeros.

And this will happen if -1 < k < 1.

7 0
2 years ago
A rectangular garden has length twice as great as its width. A second rectangular garden has the same length as the first garden
Slav-nsk [51]
I say 12 because that would mean the first rectangle is 6x12 and the second is 10x12
4 0
3 years ago
Madeline works as a part time job at Parkland Hospital for $20 per hour. She worked for 10 hours last week and must pay 10% in t
ioda

Answer:

20


Step-by-step explanation:

20 x 10 = 200

10% = 0.10

200 x 0.10 = 20

7 0
3 years ago
Read 2 more answers
Other questions:
  • Please answer this correctly
    7·1 answer
  • The circulation of a newsletter decreased from 5300 to 3630. Find the percent of decrease in circulation to the nearest percent.
    8·1 answer
  • A car’s speed before a sudden stop can be estimated by the formula
    10·1 answer
  • Louisa starts training for cross country. She records how far she can run without stopping each week.
    9·2 answers
  • Solve for X and solve for Y?
    7·1 answer
  • Between which two consecutive integers does √ 350 lie​
    10·2 answers
  • Whats the answer for this question
    8·2 answers
  • Please help me solve this !:) <br> Explain your answer <br><br> I will give braisnlt .
    12·1 answer
  • Find the area of the shaded region. Round your answer to the nearest tenth if needed.
    8·1 answer
  • On a number line, between which two consecutive whole numbers would √221 be located? Use pencil and paper. Explain why it might
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!