K
Khách

Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.

16 tháng 10 2016

58-2*3^n+4<=>2*3^n=54<=>3^n=27<=>n=3

hence:n=3

9 tháng 12 2016

Câu 1:
.810:8=89
Answer: The missing number is 

Câu 2:
The fourth power of 3 is 81

Câu 3: 
Find the number n such that 2016n=1.
Answer: không tồn tại

Câu 4:
What is the greatest remainder when a number divide by 9?
Answer: 8
 

Câu 5: không hiểu cho lắm , đề sao sao ấy , hỏi tuổi ai ?
Maria is 10 years old and her sister is 7 years old. In how many years' time will their total age be 41 years?
Answer:  years.

Câu 6:
Anna is 1.53m tall. What is her height in centimeters?
Answer: 153 (cm)

Câu 7:

510x610= 3010

Câu 8:
Find the last digit of 22016.
Answer: The last digit of  22016 is 4

Câu 9:
Find the number n such that 58-2x3n=4.
Answer: n = 3

Fill in the blank with the suitable sign (>; =;<)

Câu 10:
Compare:   310   =   95

17 tháng 12 2016

cau 5 lam sao

9 tháng 8 2016

Toán bằng TA à. Kinh nhể

Question 1:The least common multiple of 330; 65; 15 is Question 2:Given seven numbers: 25; 17; 39; 43; 239; 1021; 1023.The composite numbers are  (Write numbers in order from the least to the greatest and use ";")Question 3:The common factors of 18 and 27 are (Write numbers in order from the least to the greatest and use ";")Question 4:Given the set of even numbers: {2; 4; 6; …; 100}.The number of elements is Question 5:Find four integer numbers a,b,c,d such thata + b + c + d = 1a + c + d = 2a + b + d = 3a + b + c...
Đọc tiếp

Question 1:
The least common multiple of 330; 65; 15 is 

Question 2:
Given seven numbers: 25; 17; 39; 43; 239; 1021; 1023.
The composite numbers are  
(Write numbers in order from the least to the greatest and use ";")

Question 3:
The common factors of 18 and 27 are 
(Write numbers in order from the least to the greatest and use ";")

Question 4:
Given the set of even numbers: {2; 4; 6; …; 100}.The number of elements is 

Question 5:
Find four integer numbers a,b,c,d such that
a + b + c + d = 1
a + c + d = 2
a + b + d = 3
a + b + c = 4
Answer: (a;b;c;d)=() 

Question 6:
Find a four-digit natural number that is less than 2015.If the thousands digit is erased,the number will be decreased by 9 times. 
Answer:The number is 

Question 7:
Calculate: 1×2+2×3+⋯+100×101=

Question 8:
The  term of the expression A=1-7+13-19+25-31+⋯ is 

Question 9:
Given the expression A= ...
Find the value of n such that 2A+3=
Answer: n=

Question 10:
A natural number has six digits and the units digit is 4.If the units digit is moved to the first row then the number will be increasedby 4 times.The number is 

1
16 tháng 3 2016

chết liền đưa nhìu câu quá

5 tháng 8 2016

3A=32+33+34+.....+3101

-  A=3+32+33+....+3100

=2A=3101-3

=>A=(3101-3):2

2A+3=3n

=>3101-3+3=3n

=>3101=3n

=>n=101

5 tháng 8 2016

2A + 3 = 3A - A + 3 = (32 + 33 + 34 + ... + 3101) - (3 + 32 + 33 + ... + 3100) + 3 = 3101 - 3 + 3 = 3101 .Vậy n = 101

7 tháng 7 2017

hỏi thế tớ nói một câu ra đáp án ngay

TUA XUỐNG

Tớ xin lỗi,tớ chịu hỏi người khác đê.

11 tháng 10 2016

toan chu ko phai la tieng anh

đây là chỗ hỏi tiếng anh ak

                                                                                      LÀM VẬY ĐÚNG KO???Bài thi số 1Điền kết quả thích hợp vào chỗ (...): 12:09Fill in the blank with the suitable number (Note: write decimal number with "the dot" between number part and fraction part. Example: 0.5)Câu 1:The succeeding number of -7 is 7Câu 2:Given that M is the midpoint of the segment AB. Calculate the length of the segment MB if AB = 10cm.Answer: MB=5cmCâu 3:What is the...
Đọc tiếp

                                                                                      LÀM VẬY ĐÚNG KO???

Bài thi số 1

Điền kết quả thích hợp vào chỗ (...):

 12:09

Fill in the blank with the suitable number (Note: write decimal number with "the dot" between number part and fraction part. Example: 0.5)

Câu 1:
The succeeding number of -7 is 7

Câu 2:
Given that M is the midpoint of the segment AB. Calculate the length of the segment MB if AB = 10cm.
Answer: MB=5cm

Câu 3:
What is the absolute value of -4?
Answer: The absolute of -4 is4 

Câu 4:
Find the value of 
Answer: A=5

Câu 5:
Given that the distance from point a to point -1 on the number line is 7. Find a if a > 0.
Answer: a=6

Câu 6:
Find the opposite number of .
Answer: It is -28

Câu 7:
Find the greatest negative integer.
Answer: It is -1

Câu 8:
Given a segment AB = 4cm. Let C be a point such that A is midpoint of segment CB. Find the length of segment CA.
Answer: CA=4cm

Câu 9:
Given 20 points. Draw the lines through the 2 points of these 20 points. How many lines are there if only 3 of 20 points are aligned?
Answer: There are 188  lines.

Câu 10:
Find the smallest natural number which has exactly nine divisors.
Answer: 36

1
15 tháng 2 2017

sai rồi bạn ơi!câu 1:-6;câu 5:9.con lai thi ban dung het nhe

22 tháng 11 2016

câu 6 : 4 years 

câu 5 : 48%

câu 2 : redundancy ( but where the divisor? ) 

Sorry...I'm not good at English....I only do this exercises....

for me please~!

24 tháng 11 2016

Câu 1: 34 = 81

Câu 2: Số dư lớn nhất còn lại khi chia cho 9: 8

Câu 5: 42%

Câu 6: 12

Câu 1:A is a set of multiples of 12 less than 12. How many elements does the set A have?Answer: The set A has  element(s)Câu 2:Find the remainder when  is divided by 9.Answer: The remainder is Câu 3:Find the remainder of  when it is divided by 3.Answer: The remainder is Câu 4:A is the set of factor of 12 more than 6. How many elements does the set A have?Answer: The set A has  element(s)Câu 5:Find the natural number  so that the product of  and 5 is a prime number.Answer: Câu 6:Given...
Đọc tiếp

Câu 1:
A is a set of multiples of 12 less than 12. How many elements does the set A have?
Answer: The set A has  element(s)

Câu 2:
Find the remainder when  is divided by 9.
Answer: The remainder is 

Câu 3:
Find the remainder of  when it is divided by 3.
Answer: The remainder is 

Câu 4:
A is the set of factor of 12 more than 6. How many elements does the set A have?
Answer: The set A has  element(s)

Câu 5:
Find the natural number  so that the product of  and 5 is a prime number.
Answer: 

Câu 6:
Given that . How many divisors does the number A have?
Answer: The number A has  divisors.

Câu 7:
Given that . How many divisors does the number A have?
Answer: The number A has  divisors.

Câu 8:
How many prime numbers less than 10 are there?
Answer: There are  numbers. 

Câu 9:
Find the greatest 2-digit number that has 12 divisors.
Answer: It is 

Câu 10:
Among all natural number pairs  satisfy , one pair has the greatest product. What is this product?
Answer: The greatest product is 

2
20 tháng 5 2017

Theo tớ thì cậu nên đăng câu này ở mục hỏi toán bằng tiếng anh !

20 tháng 5 2017

bạn nói gì thế