$(\sqrt{5} - \sqrt{2})(\sqrt{2} + \sqrt{5})\\\sqrt{5} (\sqrt{2} + \sqrt{5}) - \sqrt{2} (\sqrt{2} + \sqrt{5})\\\sqrt{5} * \sqrt{2} + \sqrt{5} * \sqrt{5} - \sqrt{2} * \sqrt{2} +\sqrt{2} * \sqrt{5}\\ \sqrt{5*2} + \sqrt{5*5} - \sqrt{2*2} - \sqrt{2*5}\\\sqrt{10} + \sqrt{25} - \sqrt{4} - \sqrt{10}$

plus root 10 and minus root 10 gets cancel . So,

$\sqrt{25} - \sqrt{4} \\\sqrt{5^{2} } - \sqrt{2^{2} }$

square and root gets cancel

5 - 2

3 0

3 years ago

A truck whose bed is 2.5m long,1.5m, and 1.0 m high is delivering sand for a sand sculpture competition.About how many trips mus

serg [7]

The volume of the bed of the truck is 2.5 x 1.5 x 1.0 = 3.75 cubic meters.

total trips = 7 / 3.75 = 1.87, round up to 2.

They will need to make 2 trips.

5 0

3 years ago

The length of a garden is four more than twice its width, w. Which expressions represent the area of the garden? Select all that

fgiga [73]

Answer: the options that apply are

1) w(2w + 4)

5) 2w² + 4w

Step-by-step explanation:

The formula for determining the area of a rectangular garden ins expressed as

Area = length × width

The length of a garden is four more than twice its width, w. The expression for the length would be

Length = 2w + 4

Therefore, the expression that represents the area of the garden would be

w(2w + 4)

Expanding the brackets, it becomes

2w² + 4w

5 0

3 years ago