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
timama [110]
3 years ago
13

If n is an integer, which conjecture is not true about 2n– 1? A. 2n– 1 is odd if n is positive. B. 2n– 1 is always even. C. 2n–

1 is odd if n is even. D. 2n– 1 is always odd.
Mathematics
1 answer:
VladimirAG [237]3 years ago
6 0
B.



Let's simply look at each conjecture and determine if it's true or false.



A. 2n– 1 is odd if n is positive: Since n is an integer, 2n will always be even. And an even number minus 1 is always odd. Doesn't matter if n is positive or not. So this conjecture is true.



B. 2n– 1 is always even: Once again, 2n will always be even. So 2n-1 will always be odd. This conjecture is false.



C. 2n– 1 is odd if n is even: 2n is always even, so 2n-1 will always be odd, regardless of what n is. So this conjecture is true.



D. 2n– 1 is always odd: 2n will always be even. So 2n-1 will always be odd. Once again, this conjecture is true.



Of the 4 conjectures above, only conjecture B is false. So the answer is B.
You might be interested in
PLEASE HELP WILL GIVE 10 POINTS!<br><br> Subtract. −3 2/7−(−5/7)
SashulF [63]

your answer would be -2.57142857143

6 0
3 years ago
What is the solution set of {x | x &lt; -3} ∩ {x | x &gt; 5}
lozanna [386]
Any x in this set will be real numbers that are both less than -3 and greater than 5. But that's not possible, so this set is empty.
7 0
3 years ago
A grocer wants to make a 10-pound mixture of peanuts and cashews that he can sell for $4.75 per pound. If peanuts cost $4.00 per
ValentinkaMS [17]

Answer:

3lbs

Step-by-step explanation:

8 0
3 years ago
The sales tax in the town where Amanda lives is 8%. Amanda paid $40 in sales tax on a new stereo. What was the price of the ster
dusya [7]
$500, 40 divided by 8=5, 5x100= 500
6 0
2 years ago
What is the equation<br> example:: y=3/1x-6
hichkok12 [17]

Answer:

y = 4/6x - 4

Step-by-step explanation:

y = mx + b, m = slope and b = y intercept

Rise over run

Rise = +4

Run = +6

This means the slope is 4/6.

The y intercept is at -4.

Now, plug in the numbers for y = mx + b

y = 4/6x - 4

4 0
3 years ago
Other questions:
  • Which line shows the first error in the solution?
    12·1 answer
  • Help ! 7p^2-38p-24=0
    14·2 answers
  • I really really need help with proving this using a two column proof:
    6·1 answer
  • Find the 15th term of the arithmetic sequence.
    6·2 answers
  • State the possible number of positive real zeros, negative realzeros, and imaginary zeros for each function.
    13·1 answer
  • Can you find the y variable? ​
    14·1 answer
  • ANSWER ASAP PLEZ I HAVE BEEN ON THESE QUESTIONS FOREVER AND PLEASE DONT JUST TAKE THE POINTS I REALLY NEED HELPPPPPPPPPPP :(
    6·1 answer
  • Find the area of the figure
    14·1 answer
  • Help me with this please!!!!
    6·1 answer
  • Dennis drove for 12 minutes and went 8% miles in that time. At this rate, how many miles can he drive in 1 hour?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!