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Sunny_sXe [5.5K]
4 years ago
14

What is the square of 20

Mathematics
2 answers:
shutvik [7]4 years ago
4 0

The square root of 20 is 4.472

The square or 20^2 is 20•20=400

Vlada [557]4 years ago
3 0

First you need to know that square means multiplicatin by itself to itself so square of 20 means 20×20=400

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olga2289 [7]

Answer:

2/5= 0.4

200/0.4= 500 pieces of wood can be cut from the plank!

Hope this helps :)

Step-by-step explanation:

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3 years ago
Chloe answered 42 of the 50 questions correctly. Express this amount as a percent and a decimal
Oxana [17]
It would be 21 as a percent and 0.21 as a decimal
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PLEASE SOLVE IT WITH EXPLANATION!!<br>DONT TAKE POINTS :)<br>​
zloy xaker [14]

Step-by-step explanation:

We are asked to simply (2√5 + 3√2)². Using formula: (a + b)² = a² + b² + 2ab. Let's say 2√5 = a, 3√2 = b. So,

→ (a + b)² = a² + b² + 2ab

→ (2√5 + 3√2)² = (2√5)² + (3√2)² + 2(2√5)(3√2)

We are aware about the fact that root means 1/2 and square of root means 2/2 that is 1. Using this we get:

→ (2√5 + 3√2)² = 4(5) + 9(2) + 2(2√5)(3√2)

Solve the brackets, to do so first put the like terms in one box.

→ (2√5 + 3√2)² = 4(5) + 9(2) + 2(2*3)(√5)(√2)

Solve the rest calculations.

→ (2√5 + 3√2)² = 20 + 18 + 2(6)(√10)

→ (2√5 + 3√2)² = 38 + 12√10

Option (a) (38 + 12√10) is the correct option.

4 0
3 years ago
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Answer:

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Step-by-step explanation:

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the answer will be 27*-2(-54) -1(because we start at -1 , not 0)

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11111nata11111 [884]
<span>The answer is 2 three-point shots. Since the Lakers made 37 two-point shots, one multiplies 37 by 2 (37 x 2), which equals 74. Then 74 is subtracted from the total 80 to see how many points are left (80 - 74), which equals 6. To determine the number of three-point shots, 6 is divided by 3 (6/3), which equals 2.</span>
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