Match the rectangles formed by the sets of points to their corresponding areas. a(-9, 8), b(-5, 5), c(1, 13), d(-3, 16) 50 square units e(30, 20), f(39, 29), g(49, 19), h(40, 10) 300 square units i(-6, 2), j(2, 2), k(2, -8), l(-6, -8) 100 square units m(5, 5), n(11, 5), o(11, -5), p(5, -5) 80 square units q(10, 0), r(15, 5), s(25, -5), t(20, -10) u(0, 5), v(15, 20), w(25, 10), x(10, -5)

Area of ABCD = 50 square units

Area of IJKL = 80 square units

Area of QRST = 100 square units

Area of UVWX = 300 square units

Step-by-step explanation:

ABCD: A (-9 , 8) , B (-5 , 5) , C (1 , 13) , D (-3 , 16)

AB = √(-5 - -9)² + (5 - 8)² = 5

BC = √(1 - -5)² + (13 - 5)² = 10

Area = 5 × 10 = 50 square units

IJKL: I (-6 , 2) , J (2 , 2) , K (2 , -8) , L (-6 , -8)

IJ = 2 - -6 = 8 ⇒ horizontal line (same y-coordinates)

JK = 2 - -8 = 10 ⇒ vertical line (same x-coordinates)

Area = 8 × 10 = 80 square units

QRST: Q (10 , 0) , R (15 , 5) , S (25 , -5) , T (20 , -10)

QR = √(15 - 10)² + (5 - 0)² = 5√2

RS = √(25 - 15)² + (-5 - 5)² = 10√2

Area = 5√2 × 10√2 = 100 square units

UVWX: U (0 , 5) , V (15 , 20) , W (25 , 10) , X (10 , -5)

UV = √(15 - 0)² + (20 - 5)² = 15√2

VW = √(25 - 15)² + (10 - 20)² = 10√2

A = 15√2 × 10√2 = 300 square units

93.8

step-by-step explanation:

lets say, first number = x

second number = 3x+7

total = 49

(x)+(3x+7)= 49

4x+7 = 49

4x = 42

x = 42/4

x= 10.5

x= 10.5

3x+7 = 3(10.5)+7 = 93.8

hope this