Answer:
Can a polyhedron have for its faces 3 triangles? A polyhedron is bounded by four or more than four polygonal faces. No, it is not possible that a polyhedron has 3 triangles for its faces.
Step-by-step explanation:
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Answer:
Option A is correct.
Step-by-step explanation:
No of Balls in Basketball = 2
No of Balls in Dodge ball = 18
No of Balls in Soccer ball = 8
No of Balls in Tennis ball = 14

Ratio of Soccer balls to Tennis balls = 4 : 7
⇒ For every 4 Soccer ball, there are 7 Tennis ball.

Ratio of Basket ball to Dodge Ball = 1 : 9
⇒ For every 1 Basket ball, there are 9 Dodge balls.
Therefore, Option A is correct.
The answer is: x = -4 and y = 11/3
Answer is C. Just plug in the values of 2 , 1 and -3 as a, b, and c accordingly.
Answer:
0 = 2x² - 23x + 45
Step-by-step explanation:
0 = (x - 5/2)(x - 9)
0 = x² - 5/2x - 9x + 45/2
0 = 2x² - 23x + 45