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
denis23 [38]
3 years ago
12

Whats the least common multiple of 7, 9, and 21

Mathematics
1 answer:
Marina86 [1]3 years ago
8 0

Answer:

63

Step-by-step explanation:

You might be interested in
Andrew is creating a rectangular dog run in his back yard. The length of the dog run is 18 feet. The perimeter of the dog run mu
ale4655 [162]

Answer: 3\leq x \leq 18

Step-by-step explanation:

Given, the length of the rectangular dog run is 18 feet.

Formula: Perimeter = 2 ( length + width)

Let width be x.

Then, Perimeter = 2 (18 + x ) feet

The perimeter of the dog run must be at least 42 feet and no more than 72 feet.

That is  

42\leq 2 (x+18)\leq 72

Divide inequality by 2, we get

21\leq 18+x\leq 36

Subtract 18 from each side, we get

3\leq x \leq 18

Required inequality : 3\leq x \leq 18

6 0
3 years ago
A sphere has a diameter of 4(x + 3) centimeters and a surface area of 7847 square
faust18 [17]

Answer:

4

Step-by-step explanation:

6 0
2 years ago
If a team scored 96 points while making 18 free throws, how many field goals were made?
vlabodo [156]

Answer:

26 free throws

Step-by-step explanation:

96-18=78

78 divided by how much one free throw is worth (3)

you would get 26

hope this helps!

8 0
3 years ago
Chase plays the piano and cello. For every 2 hours he practices the piano, he practices the cello for 3 hours. If he practices t
Zolol [24]
10 1/5 

really hopes this helped you with what you were solving

5 0
3 years ago
"let v = r 2 with the usual addition and scalar multiplication defined by k(u1, u2) = (ku1, 0). determine which of the five axio
expeople1 [14]
Let \mathbf u\in\mathbb R^2, where

\mathbf u=(u_1,u_2)

and let k\in\mathbb R be any real constant.

Given this definition of scalar multiplication, we can see right away that there is no identity element e such that

e\mathbf u=\mathbf u

because

e\mathbf u=e(u_1,u_2)=(eu_1,0)\neq(u_1,u_2)=\mathbf u
5 0
3 years ago
Other questions:
  • Two ropes extend from the top of a flagpole to the ground 18 feet away from flagpole’s base on either side. The flagpole is 30 f
    5·1 answer
  • Andy is 6 feet tall. if 1 inch equal 2.54 cantimeters ,how tall is Andy,to the nearest cantimeters
    13·2 answers
  • Write the number 0.00003852 in standard form
    7·1 answer
  • Math Homework, correct answers only!
    14·1 answer
  • Two objects that have the same mass are dropped from the top of a 20 m
    5·1 answer
  • A clothing store has sold $300 in shirts and plans to sell enough jeans to exceed its goal of $500. each pair of jeans cost $40.
    14·1 answer
  • In the diagram to the right what is the length of N
    9·1 answer
  • A car is traveling at a constant speed of 55 miles per hour. Using m for miles and t for time, write 2 equations to represent th
    10·1 answer
  • Please answer meee.......​
    5·2 answers
  • Ahh help im confuse pls answer
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!