15000+450+275=15725
15725*0.0875=1375.9
1375.9+15725=17100.9
17100.9 is the final price without the down payment and with the down payment it is 18469 so the total amount for the down payment is 1368
Answer: perimeter = 96mm, Area = 564mm².
Step-by-step explanation:
From the diagram, it is a trapezium, it has a rectangle joined together by a right angled triangle. Now to find the perimeter, we add all the dimensions together. To get the other side of the rectangle, which is also the perpendicular height of the figure, we take the Pythagoras. Let the perpendicular height = x
Therefore,
25² = ײ + 7²
625 = x² + 49
x² = 625 - 49
x² = 576
x. = √576
= 24.
Now the perimeter
= 20 + 25 + 7 + 20 + 24
= 96mm.
Area of the figure will be
= 1/2( a + b )h
Where a = 20, b = 20 + 7 = 27 and h = 24, now substitute for the values
( 20 + 27) x 24
---------------------
2
= 47 x 24/2
= 47 x 12
= 564mm²
It is a hexagon. Should b ur answer
TRUE
1) x = a + b => a = x - b and b = x - a
2) a.b = c => a = c / b and b = c/b
The mean becomes closer to the rest of the numbers. An outlier can drastically change your average.