Answer:
RS ≈ 5.83 units
Step-by-step explanation:
Calculate RS using the distance formula
d = √ (x₂ - x₁ )² + (y₂ - y₁ )²
with (x₁, y₁ ) = R(- 3, 1) and (x₂, y₂ ) = S(2, 4)
RS = 
= 
= 
=
≈ 5.83 ( to 3 significant figures )
Perimeter of rectangle:2(length+width):2(13+7)=40
Perimeter of square:4(length of one side):4(x)=40
X=10
Answer: The original price of washing machine is $250.
Step-by-step explanation:
Since we have given that
Rate of decline in normal prices = 17%
Amount of normal price reduced by = $42.50
Let the original price be x
According to question,

Hence, The original price of washing machine is $250.
Answer:
49
Step-by-step explanation:
You would add 4+5+6+7+8+9+10 to get the sum of 49.
193.75 divided by 15 = 12.9666....
So the average cost would be $12.96