Start by distributing -5x into x then into -3y. So -5x times x equals -5x^2( -5x squared), then -5 times -3y, equals 15xy so your answer is -5x^2 + 15xy.
Answer:
a)
b) 1.5 hours after thickness will be 2 inches.
Step-by-step explanation:
Answer:
15+4.5+0.5=20
Alex bought 20 pounds of pet food
Step-by-step explanation:
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Answer: 38 feet.
Step-by-step explanation:
The equation of motion of a body thrown vertically upwards:
,
Substitute in formula (1) the value t=2 c: