You solve by with by altitude! Hope it helps
Answer:
The answer is 49 in^2.
Step-by-step explanation:
The area of the triangle is 1/2* perpendicular height * horizontal length.
The horizontal length is 14 in, while the perpendicular height is 7 in.
The area of the triangle is 1/2* 7 in * 14 in = 49 in^2
Answer:
8 feet
Step-by-step explanation:
Given that 96 sq. feet of tile is bought to retile the bathroom.
It means area of bathroom is 9
6 sq. feet
Width of bathroom be x
Given that the length of the bathroom is one and a half times the width
Length of bathroom in term sod width = 1 1/2* x = 3/2 x
we know area of rectangle is given by length * width
therefore area of bathroom =( x* 3/2 x) = 3/2 x^2
Also area of bathroom is 86 sq. feet, therefore

Thus, width of bathroom is 8 feet.
Answer: [ -8, -5] or [1, 4]
Step-by-step explanation:
Thats what I got I'm in 7th and I havent learned this yet but hope I helped <3!!!
Answer:
y = -2 ( (x^2) + (2*x*5) + (5^2)) - 30
y = -2 ( x^2 + 10x + 25) - 30
y = -2x^2 - 20x - (2*25) - 30
y = -2x^2 - 20x - 50 - 30
y = -2x^2 - 20x - 80