Answer:
question no:3
Step-by-step explanation:
here
= x^2 + 5x - 300
= x^2 +(20-15)x -300
= x^2 + 20x - 15x - 300
= x(x+20) -15(x+20)
= (x+20) (x - 15)
I had th esame qustion but icant fin dthe answer
Answer:
1 / We have the area of a rectangle ABCD = 8 x 16 = 128 ft²
2 / Find the area of an isosceles Δ DEF:
The base of the isosceles ΔDEF => DF = DC- FC = 16 -12 = 4 ft
So the area of Δ DEF = 1/2 (DF x EH) = 1/2 (4 x 6) = 12 ft²
3 / Area of the irregular shape = area ABCB + Area DEF = 128 + 12 = 140 ft²
Step-by-step explanation:
Answer:
4
Step-by-step explanation:
2 cubes on each 6 × 8 face will have one surface painted. The sides of dimension 4 cm do not have enough width to have any cubes with only one face painted.
Hence, there are a total of 4 cubes with one face painted.
Answer:
216 cubic meters
Step-by-step explanation:
to find the volume of any prism the equation is bh or base times height
the base is a triangle so you find the triangles area and multiply it by the height
8 * 6 * 1/2 = 24
24 * 9 = 216
216 cubic meters
