Answer:
Step-by-step explanation:
a). By applying Pythagoras theorem in right triangle ABC,
AC² = AB² + BC²
20² = 16² + BC²
BC = 
= 12
Therefore, another leg of the triangular base = 12 cm
Area of the triangular base ABC = 
= 
= 96 cm²
Volume of a triangular prism = Area of the triangular base × height
960 = 96 × b
b = 10 cm
b). Area of the triangle ABC = 96 cm²
Answer: 3 × 1/ 10 is not less than 3 × 10
Step-by-step explanation:
Because 3 × 1 / 10 is (0. 3) and 3 × 10 is (30) they are equivalent.
Multiply everything if not that than add
Answer:
x = 4
Step-by-step explanation:
11x - 7x = 16
11x - 7x = 4x
16 divided by 4 = 4x
First, multiply all fractions by 2.
3x-10/8x=52
Then multiply all sides by -10.
-30x + 8x = -520
-22x = -520
Divide both sides by -22.
x=23.6363