How much did each care package weigh?
1 answer:
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Given to points to us are :-
- ( 3 , -6 )
- ( -1 , -8 )
( As these are plotted on graph with yellow dots .)
Now , we can use Distance Formula , which is :-
Here ,
- x1 = 3 .
- x2 = -1.
- y1 = (-6)
- y2 = (-8).
<u>→ Substituting the respective values , </u>
⇒ Distance = √ [ { 3 - (-1)}² + { -6 -(-8)²} ] .
⇒ Distance = √ (3+1)² + (8-6)²
⇒ Distance = √ 4² + 2²
⇒ Distance = √ 16 + 4
⇒ Distance = √20 = √4 × √5
⇒ Distance = 4√5units .
<u>Hence the distance between two points is 4√5u.</u>
Answer:
The simplest radical form is ⇒ (c)
Step-by-step explanation:
To simplify any square root;
- Factorize the number under the root using prime numbers
- Take out the root any number repeated twice as one number
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<em><u>Examples:</u></em>
1. Simplify
factorize 8 using prime numbers
8 = 2 × 2 × 2, then
Take two of 2 out the root, then
2. Simplify
factorize 18 using prime numbers
18 = 2 × 3 × 3, then
Take the two 3 out the root, then
Let us simplify
∵ 45 = 3 × 3 × 5
∴
→ Take the two 3 out by one 3
∴
→ Multiply the numbers out the root
∴
∴ The simplest radical form is