using proportion in similar triangle, then
let x be the length of the tower's shadow
= ( cross- multiply )
9x = 113.4 ( divide both sides by 9 )
x = = 12.60 m ( to the nearest hundredth )
Answer:
answer is 456986973*'/96659
Answer:
90 degrees?
Step-by-step explanation:
im just guessing?
Answer:
A = 10m^2
Step-by-step explanation:
Divide the figure into 3 smaller figures (a triangle, a rectangle, and a square). Then, solve for the area of each composite figure.
A of triangle = (2 x 2)/2 = 2
A of rectangle = 4 x 1 = 4
A of square = 2 x 2 = 4
A of figure = 2 + 4 + 4 = 10m^2
Another way to solve this is to find the area of the entire figure plus the area of a triangle. This would look like A = 3 x 4 = 12. But, since the extra triangle area is included, we must subtract this from the total area.
A of triangle = (2 x 2)/2 = 2
A of figure = 12 - 2 = 10m^2
Step 1. Simplify
7x^2 - 8x - 4 - 2x^2 + 3x + 5 + 5x^2 - 10x - 8
Step 2. Collect like terms
(7x^2 - 2x^2 + 5x^2) + (-8x + 3x - 10x) + (-4 + 5 - 8)
Step 3. Simplify
10x^2 - 15x - 7