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
34kurt
3 years ago
11

Find the difference 12-20.5

Mathematics
2 answers:
myrzilka [38]3 years ago
7 0
The difference is 8.5
choli [55]3 years ago
4 0

The answer is -8.5. Hope this helps!

You might be interested in
Set up equations and solve.
zavuch27 [327]
One weights 30lbs the other weights 54lbs
3 0
3 years ago
Rani deposited AED 12000 for 3 years at the rate of 5 percent per annum. Calculate the simple interest and amount at the end of
Luda [366]

Answer:

the principal and the amount is 1,800 and 13,800 respectively

Step-by-step explanation:

The computation of the simple interest and amount for the end of the 3rd year is shown below:

Simple interest is

= Principal × rate of interest × time period

= 12,000 × 5% × 3 years

= 1,800

Now the amount is

= 12,000 + 1,800

= 13,800

hence, the principal and the amount is 1,800 and 13,800 respectively

7 0
2 years ago
Suppose that x is the probability that a randomly selected person is left handed. The value (1-x) is the probability that the pe
harina [27]

Answer:

The maximum variance is 250.

Step-by-step explanation:

Consider the provided function.

V(x)=1000x(1-x)

V(x)=1000x-1000x^2

Differentiate the above function as shown:

V'(x)=1000-2000x

The double derivative of the provided function is:

V''(x)=-2000

To find maximum variance set first derivative equal to 0.

1000-2000x=0

x=\frac{1}{2}

The double derivative of the function at x=\frac{1}{2} is less than 0.

Therefore, x=\frac{1}{2} is a point of maximum.

Thus the maximum variance is:

V(x)=1000(\frac{1}{2})-1000{\frac{1}{2}}^2

V(x)=250

Hence, the maximum variance is 250.

4 0
3 years ago
How many arrangements can be made using 2 letters of the word HYPERBOLAS if no letter is to be used more than once?
alisha [4.7K]

Answer:

90 arrangements

Step-by-step explanation:

Since there are no repititions of letters, there are unique  10 letters in total.

THe number of arrangements would be 2 permutation 10. We need the formula for permutation. That is:

nPr=\frac{n!}{(n-r)!}\\

Now, n = 10 [total] and r is 2, so we have:

nPr=\frac{n!}{(n-r)!}\\\\_{10}P_{2}=\frac{10!}{(10-2)!}\\=\frac{10!}{8!}\\=\frac{10*9*8!}{8!}\\=10*9\\=90

So, there can be 90 arrangements

3 0
3 years ago
What Is 8÷856....Plz help
otez555 [7]
0.00934579439 Now I'm just waiting until 20 charac- done
4 0
3 years ago
Other questions:
  • Which of the following is not a way to say 2x+2
    15·1 answer
  • A bag contains 26 red marbles, 8 white marbles, and 5 gray marbles. You randomly pick out a marble, record its color, and put it
    10·1 answer
  • Draw diagram to rerpresent the mixed number 3 2/3. How can u write this as a single fraction greater than one
    14·2 answers
  • Find the sum: -48 + -12 =
    7·1 answer
  • Find the slope and y intercept
    6·1 answer
  • (3x+2) and (5x-6) solve for x
    11·1 answer
  • WHAT IS THE ANSWER PLZ I WILL MARK BRAINLIEST!!!
    15·1 answer
  • Hi help please! i’m struggling lol i already know the first part
    12·1 answer
  • Given the graph show, which of the following could be the value of the discriminant?
    8·1 answer
  • The standard deviation is used in conjunction with the.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!