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
ArbitrLikvidat [17]
3 years ago
13

In how many ways can 4 books be arranged on a shelf if there are 8 books to choose from?

Mathematics
1 answer:
dsp733 years ago
8 0

Answer:

1680 ways

Step-by-step explanation:

By using the formula for permutation, which is nPr=n!/(n-r)!,

8P4=8!/(8-4)!

=8!/4!

=8×7×6×5

=1680

Or if you just want to use the multiplication rule (which is simpler).

8×7×6×5=1680

You might be interested in
What are the solutions to the equation 3x2 + 3x +7 = 0?​
KATRIN_1 [288]

Answer:

x is equal to 0.94 and -1.94

Step-by-step explanation:

3x² + 3x + 7 = 0

9x² + 9x + 21 = 0

9x² + 9x + 2.25 = 18.75

(3x + 1.5)² = 18.75

3x + 1.5 = ±√18.75

3x = -1.5  ±√18.75

x = (-1.5  ±√18.75) / 3

x = 0.94, -1.94

7 0
3 years ago
What is the volume of a container measured in liquid units
saveliy_v [14]

Step-by-step explanation:

liters

The capacity of a container is the volume of a container measured in liquid units. Cups, pints, quarts, and gallons are customary units of measurement. Two metric units of capacity are milliliters and liters. A milliliter is equal to about 20 drops from an eyedropper.

3 0
3 years ago
Read 2 more answers
Let f(t)=6−2t2. Evaluate f(t+1).
tia_tia [17]

Answer:

f(t+1)= -4t+2

Step-by-step explanation:

Subsitute the given vaule into the function and evaluate.

7 0
3 years ago
What is the initial value of the function represented by this table?
klemol [59]

Check the picture below.

7 0
3 years ago
Jake completed a marathon race in 3 hours and 12 minutes. What would be Jake's running time as a decimal?
VikaD [51]

\text{Given that Jake completed a marathon race in 3 hours and 12 minutes.}\\
\\
\text{we need to find this time in decimals. so we will convert 12 minutes into hours}\\
\\
\text{We know that there are 60 minutes in 1 hour. }\\
\\
\text{so in 1 minute there will be}=\frac{1}{60 }\text{ hour}

\text{hence in 12 minutes we have}=\frac{1}{60}\times 12=\frac{1}{5}=0.2 \text{ hours}\\
\\
\text{hence the Jake's running time is}=3\text{hours + 12 minute}\\
\\
=3\text{ hours}+0.2 \text{ hours}\\
\\
=3.2 \text{ hours}

Hence, Jake's running time in decimal is: 3.2 hours

4 0
3 years ago
Other questions:
  • Finley's pumpkin had a mass of 6.56.56, point, 5 kilograms (\text{kg})(kg)left parenthesis, start text, k, g, end text, right pa
    7·1 answer
  • How do i do this can anyone help me please.
    9·2 answers
  • What do the following two equations represent?
    5·1 answer
  • When describing a rotation, what information would you need to include? *
    15·1 answer
  • The triangle below are similar Which similarity statements describe the relationship between the two triangles? Check all that a
    8·1 answer
  • Please help me it’s on probability
    9·1 answer
  • Alina, Robert, and Makayla are on the student council at their high school.
    5·2 answers
  • Write 943.04 as a mixed number.
    5·2 answers
  • What is the slope of the line below?
    12·2 answers
  • Please help me with this math please please asap please
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!