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.
Answer:
<u><em>90 males.</em></u>
Step-by-step explanation:
To find the answer we will <u><em>divide 45% by 100</em></u>, and we get <u><em>0.45</em></u>. Now <u><em>multiply 0.45 by 200</em></u> and you get <u><em>90</em></u>. Therefore, <u><em>90 males is the answer. </em></u>
Answer:
You have to do 120 divided by 0.75 use a calculator
Step-by-step explanation:
A country's income distribution is the <em>distribution of total GDP among the total population</em>
<em>hope it helps</em>
