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
Zarrin [17]
3 years ago
11

Marty bought 4 new books today. he plans to read 2 of these while on vacation. how many combinations of 2 books from the group o

f 4 could he choose to read?
Mathematics
1 answer:
Grace [21]3 years ago
8 0
6 :)

no. of books: 1 2 3 4
combinations: 12, 13, 14, 23, 24, and 34
You might be interested in
If the total income generated from gasoline for AER was $408 million how much would be the cost for a barrel of gasoline, gasoli
Mazyrski [523]
The problem statement appears to be trying to tell you that 60 million barrels of crude were processed, resulting in 34% of that volume being turned into gasoline, which was then sold for a total of $408 million. You are asked for the revenue associated with 1 barrel of gasoline.

($408·10^6)/(60·10^6 bbl × 0.34) = $408/(20.4 bbl) = $20/bbl

The income from one barrel of gasoline is $20.00.
3 0
2 years ago
Read 2 more answers
Given that 'n' is any natural numbers greater than or equal 2. Prove the following Inequality with Mathematical Induction
Oliga [24]

The base case is the claim that

\dfrac11 + \dfrac12 > \dfrac{2\cdot2}{2+1}

which reduces to

\dfrac32 > \dfrac43 \implies \dfrac46 > \dfrac86

which is true.

Assume that the inequality holds for <em>n</em> = <em>k </em>; that

\dfrac11 + \dfrac12 + \dfrac13 + \cdots + \dfrac1k > \dfrac{2k}{k+1}

We want to show if this is true, then the equality also holds for <em>n</em> = <em>k</em> + 1 ; that

\dfrac11 + \dfrac12 + \dfrac13 + \cdots + \dfrac1k + \dfrac1{k+1} > \dfrac{2(k+1)}{k+2}

By the induction hypothesis,

\dfrac11 + \dfrac12 + \dfrac13 + \cdots + \dfrac1k + \dfrac1{k+1} > \dfrac{2k}{k+1} + \dfrac1{k+1} = \dfrac{2k+1}{k+1}

Now compare this to the upper bound we seek:

\dfrac{2k+1}{k+1}  > \dfrac{2k+2}{k+2}

because

(2k+1)(k+2) > (2k+2)(k+1)

in turn because

2k^2 + 5k + 2 > 2k^2 + 4k + 2 \iff k > 0

6 0
2 years ago
Read 2 more answers
Help me pls i need this
Marina CMI [18]

<em>so</em><em> </em><em>the</em><em> </em><em>right</em><em> </em><em>answer</em><em> </em><em>is</em><em> </em><em>2</em><em>8</em><em> </em><em>hours</em><em>.</em>

<em>Hope</em><em> </em><em>this</em><em> </em><em>will</em><em> </em><em>help</em><em> </em><em>u</em><em>.</em><em>.</em><em>.</em>

<em>Look</em><em> </em><em>at</em><em> </em><em>the</em><em> </em><em>attached</em><em> </em><em>picture</em><em>⤴</em>

8 0
3 years ago
I have been stuck on this forever. Please help me
il63 [147K]
2a. speed= distance
---------------
time

60÷69 = 52.1739 miles per hour.



so for the next one with the airplane flies 296 km in 276 min is the same formula.
296/276 = 39.9839 mph.

I couldn't see the first question clear...sorry but apply same formula.
Hoping this will help you
5 0
3 years ago
PLEASE HELP ME, IMA LOW LIFE WHO DOESNT KNOW MAF
a_sh-v [17]

Answer:

c/a/a

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
Other questions:
  • Are there repeating Xs in the second map?
    14·1 answer
  • PLEASE HELPP!
    11·1 answer
  • Foactoring Diff/ Sum of Cubes <br><br>Factor completely​
    9·1 answer
  • How can your establish credit?
    9·1 answer
  • I REALLY NEED HELP!!!! Determine how far the intersection of Oak Street and New Street will be from the intersection of Main Str
    9·1 answer
  • 2. One third of the cars available for sale in a dealership are used cars. If there are 20 new
    13·1 answer
  • When your classmates began their hike, they
    13·2 answers
  • Bestie Toys faces stiff competition from FunGadgets Inc., a rival firm with which Bestie Toys has achieved differentiation parit
    11·1 answer
  • Can someone help me solve? 11.8=5-0.5p
    5·1 answer
  • I'm trying to evaluate and solve this quadratic function and I get so lost on word problems I will include a picture
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!