3 years ago

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

Mathematics

1 answer:

Marina86 [1]3 years ago

8 0

Answer:

Step-by-step explanation:

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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:

Step-by-step explanation:

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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