677 mi^2
find the area of the two triangles and double them(or just not divide by two on both of them since they’re being doubled anyways) and then add the area of the bottom rectangle.
There is no underlined dogit
Answer:
D)
Step-by-step explanation:
A) Ratio of novels : children's books Sunday -> 12:15 or 4:5
B) Ratio of cookbooks : novels on Saturday ->10:18 or 5:9
C) Ratio of novels : children's books Saturday -> 18:25
D) Ratio of cookbooks : novels Sunday -> 6:12 or 1:2
Ratios from options A) B) and C) are all larger than 1:2 (1/2 or 0.5)
Answer:
option A : 7x - 1
Step-by-step explanation:
Area of the shaded region = [ Area of bigger rectangle] - [Area of smaller rectangle ]
Therefore, Area of bigger rectangle = length * breadth = (x - 1)(x + 5)
Therefore, Area of smaller rectangle = length * breadth = (x + 1)(x - 4)
Area of shaded region = [(x - 1)(x + 5)] - [(x + 1) ( x - 4)
= [x(x + 5) - 1(x + 5)] - [x(x - 4) + 1( x - 4)]
= [ x^2 + 5x - 1x -5] - [ x^2 - 4x + 1x - 4]
= x^2 + 5x - 1x - 5 - x^2 + 4x - 1x + 4 ....(after removing the brackets)
= <u>x^</u><u>2</u><u> </u><u>-</u><u> </u><u>x^</u><u>2</u> + 5x + 4x - 1x - 1x - <u>5</u><u> </u><u>+</u><u> </u><u>4</u>.....( as (+ x^2 )and (- x^2 )get eliminated due to opposite signs)
= 9x - 2x - 1
= 7x - 1
So, option A: 7x - 1 is the correct answer.
