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
RUDIKE [14]
3 years ago
12

Which of the following numbers is a Mersenne prime? A: 90 B: 27 - 1 C: 211 - 1 D: 15

Mathematics
1 answer:
My name is Ann [436]3 years ago
3 0

Answer:

  B:  2⁷-1 = 127

Step-by-step explanation:

A Mersenne prime is a prime of the form 2^n -1, where n is also a prime.

Among the answer choices, neither 90=2·3²·5 nor 15=3·5 is prime. Both 2⁷-1 = 127 and 2¹¹-1 = 2047 are of the right form, but 2047 = 23·89 is a composite number.

  2⁷-1 = 127 is a Mersenne prime

You might be interested in
7x + y = 13<br> 4x – 4y = -20
aalyn [17]

Answer: (x,y) = (1,6)

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
When graphing a linear inequality, when can you NOT use (0, 0) as a test point to determine which side of a boundary line to sha
TEA [102]
When the point (0,0) is on the boundary line
8 0
4 years ago
Read 2 more answers
How are the shapes alike
Andrews [41]

Answer:

Each circle (A, B, and C) contain shapes that all share at least one characteristic. Some shapes are contained in more than one circle because they share more than one characteristic. For example, shape 3 fits the rule for circles A and B, but not circle C. It lies within circles A and B, but not circle C.

Step-by-step explanation:

3 0
3 years ago
james borrows Php 700000 and promises to pay the principal and interest at 15% compounded monthly. How much must he repay after
Licemer1 [7]

Answer:

A = $ 1,987,379.10 + 700,000= $2,687,379.10

Step-by-step explanation:

15% = 0.15 rate per tear

A = P (1+r/n)^nt

A = 700,000 (1+0.015/12)^12*7

A = 700,000 (1+0.0125)^84

A = 700,000 ((0.9875)^84

A = 700,000 (2.839113)

4 0
3 years ago
Here is a circle touching a square.
Alex Ar [27]

Answer: 9πcm²

Step-by-step explanation: area of the square= 36cm²

Therefore, the area of one side= √area = √36 = 6cms

Since the circle is touching the sides of the square, the side of the square = the diameter of the circle

Therefore the radius of the circle= side/2 = 3cm

The formula for the ares of the circle is πr²

π*3*3 = 9πcm²

8 0
3 years ago
Other questions:
  • Modal of 9<br> 10<br> 11<br> 14<br> 19<br> 22<br> 27<br> 29<br> 21<br> 18<br> 11<br> 6
    15·1 answer
  • Write a description of the set. {April,August}
    15·1 answer
  • An equation for 10/50=12/60
    9·1 answer
  • Need help with left side
    11·1 answer
  • Find the slope and y intercept of the line in the graph
    5·1 answer
  • Jordan scored 19 points during a basketball game. She made a total of 9 baskets.
    5·2 answers
  • The cost to park a car in a parking lot is $3.85 per hour. Maleek parked his car for 4 hours on Monday, 2 hours on Tuesday, and
    9·1 answer
  • Please help. I will report if it is a link or fake answer. I need this done really soon. I will offer brainliest to anyone who d
    13·1 answer
  • Manny walks a total of 0.75 mile to and from school each day. If there are 25 days in a month, how many miles has he walked in a
    12·1 answer
  • the length of a cell is 2/3 mm. If the area of the cell is 1/12 square mm, whtat is the width of the cell
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!