Supposing we begin with n=1, the first few terms of this arith sequence are
5, 1, -3, -7, and so on. 4 is the common difference.
Answer:
Area of shaded part ABCEF = 66 sq.cm
Step-by-step explanation:
AB = 8cm
CD = 8cm
Let DE = x cm
CE = 3x cm
CD = CE + DE = 8cm
x + 3x = 8
4x = 8
x = 8/4 = 2 cm
DE = 2cm
CE = 3 * 2 = 6 cm
Area of triangle ADE = 1/2 * base * height
= 1/2 * DE * AD
= 1/2 * 2 * 11 = 11 sq. cm
Area of triangle AEF = Area of triangle ADE = 11 sq. cm
Area of Rectangle ABCD = l * b = 8 * 11 = 88 sq.cm
Area of shaded part ABCEF = Area of Rectangle ABCD - (Area of triangle AEF + Area of triangle ADE)
= 88 - ( 11 + 11 ) = 88 -22 = 66 sq.cm
Answer:
b. {-3, -1, 2}
Step-by-step explanation:
An <u>ordered pair</u> is a pair of elements written as (x, y) where the first element is the input value and the second element is the output value.
The <u>domain</u> is the set of input values (x-values)
The <u>range</u> is the set of output values (y-values)
Therefore, for the given ordered pairs (-1, 0), (2, 4) and (-3, 6)
Domain: {-3, -1, 2}
Range: {0, 4, 6}
Answer:
450cm²
Step-by-step explanation:
The area of the kite is made up of two pairs of congruent triangles. Find the area of these and add to get the kite's area. (area of triangle = (1/2)(base)height))
2(0.5*15*20)+2(0.5*15*10)
300+150
450
Answer:
A
Step-by-step explanation:
2.25 > 1 5/6 > 1/2 > -1.5 > -3 1/4
