Pythagoras theorem ! (a²+b²=c²)
Q1) AC = √4.8²+3.6²
= √36
= 6cm
Q2) AB= √17.55² - 6.75²
= √262.44
= 16.2cm
Q3) BC= √14² - 6²
= √160
= 12.64911
= 12.6 cm (to 3sf)
Using mathematical operations, the population of Alaska in 2050 will be 8,99,500.
<h3>
What are mathematical operations?</h3>
- An operation is a function in mathematics that transforms zero or more input values into a clearly defined output value.
- The operation's arity is determined by the number of operands.
- A mathematical action is called an operation. Mathematical operations include addition, subtraction, multiplication, division, and finding the root.
So, the population in 2050:
- Population increases from 2000 to 2020:
- 733,000 - 622,000 = 1,11,000
- Population change in 20 years = 1,11,000
- In 10 years = 1,11,000/2 = 55,500
So, poulation in 5050:
- 2020 (20 years) ⇒ 2040 (00 years) ⇒2050
- = 733,000 + 1,11,000 + 55,500
- = 8,99,500
Therefore, using mathematical operations, the population of Alaska in 2050 will be 8,99,500.
Know more about mathematical operations here:
brainly.com/question/20628271
#SPJ13
Answer:
Step-by-step explanation:
<u>Given vertices of triangle:</u>
- A(1, 2), B(3, 4), C(5, 0)
<u>The centroid is found as the average of x- and y- coordinates of three vertices:</u>
- C = ((x₁ + x₂ + x₃)/3, (y₁ + y₂ + y₃)/3)
<u>Substitute the coordinates into formula:</u>
- C = ((1 + 3 + 5)/3, (2 + 4 + 0)/3) = (3, 2)
Correct choice is B