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
guapka [62]
3 years ago
11

Cho x,y thuộc n thoả mãn x hia 3 dư 1,y chia 3 dư 2.hỏi x.y chia 3 có số dư bằng bao nhiêu

Mathematics
1 answer:
Strike441 [17]3 years ago
8 0

Answer:

2

Step-by-step explanation:

x÷3 dư 1-->x=3a+1

y÷3 dư 2-->y=3b+2

x×y=(3a+1)×(3b+2)

=9ab+6a+3b+2

Mà 9ab, 6a, 3b chia hết cho 3, 2 chia 3 dư 1

==>x×y chia 3 dư 2

You might be interested in
What is the value for f(x)4^2x -100 when x=2 ?<br><br> (the ^2x is a exponent)
PolarNik [594]

Answer:

156

Step-by-step explanation:

f(x)= 4^(2x) -100

Let x =2

f(2)= 4^(2*2) -100

   = 4^4 - 100

   = 256 -100

   = 156

3 0
3 years ago
How do you get statistics from percentages
Nikitich [7]

Answer:

Divide the target demographic by the entire population, and then multiply the result by 100 to convert it to a percentage.  

Step-by-step explanation:

Gather Your Statistics.

Divide by Entire Population.

Convert to Percentage

6 0
4 years ago
PLEASE HEEEEEEEEELLLLLLLLLPPPPPPP WILLING TO GIVE BRAINLIEST.
hoa [83]
I hope this helps, If there are 5 cups of flour, then there will be 7 and 1/2 cups of sugar:)

4 0
3 years ago
Mrs. Gregory, the golf course superintendent at a country club, plans to reseed the putting green of the first hole. The circula
WITCHER [35]

Answer:

The area of the putting green is 1133.5 square feet.

Step-by-step explanation:

Area of a circle:

The area of a circle is given by:

A = \pi r^2

In which r is the radius, which is half the diameter.

The circular putting green has a diameter of 38 ft.

This means that r = \frac{38}{2} = 19

What is the area of the putting green?

A = \pi r^2 = 3.14 * 19^2 = 1133.5

The area of the putting green is 1133.5 square feet.

5 0
3 years ago
Help please not much time!!!!
Rzqust [24]

Answer:

I'm here! This Problem is easy :) The answer is 4

Step-by-step explanation:

2x+10=5x−2

<em>Subtract </em>5x from both sides

2x+10−5x=−2

<em>Combine</em> 2x and −5x to get −3x.

−3x+10=−2

Subtract 10 from <em>both sides.</em>

−3x=−12

<em>Divide</em> both sides by −3.

Divide −12 by −3 to get 4.

x=\frac{-12}{-4}

x = 4 (D)

7 0
3 years ago
Other questions:
  • How do I answer 2 (x + 2) = -4?
    8·1 answer
  • I NEED HELP NOW PLEASE!!!!!
    9·1 answer
  • For a sample of n = 30 scores, a score that is 6 points above the mean has a z-score of z = 1.50. What is the sample standard de
    12·1 answer
  • Correct answers only please!
    7·1 answer
  • Michael has a rope that is 13 meters long. He cuts away a piece that is 9.88 meters long. How long is the remaining piece of rop
    14·1 answer
  • Find the median, first quartile, third quartile, and interquartile range of the data.
    15·1 answer
  • A national survey conducted in 2011 among a simple random sample of 1,507 adults shows that 56% of Americans think the Civil War
    8·1 answer
  • The radius of a circle is doubled. How does the area change?
    14·1 answer
  • A stero in the shape of a triangle pyramid has a height of 6 inches The area of the base of the speaker is 11 square inches
    12·2 answers
  • Acellus
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!