Mathematics, 10.01.2021 04:20 hnsanders00
7. A train which is 100 meters long is traveling at a speed of 90 km per hour. How many
seconds will it take for this train to pass completely through a 300 meter tunnel?
A 4
B 8
C 12
D 16
E 20
The answer is D, 16. How do you get 16 tho?
Answers: 3
Mathematics, 21.06.2019 14:00
Demonstrate the proof of your new polynomial identity through an algebraic proof and a numerical proof in an engaging way! make it so the whole world wants to purchase your polynomial identity and can't imagine living without it! you must: label and display your new polynomial identity prove that it is true through an algebraic proof, identifying each step demonstrate that your polynomial identity works on numerical relationships create your own using the columns below. see what happens when different binomials or trinomials are combined. square one factor from column a and add it to one factor from column b to develop your own identity. column a column b (x β y) (x2 + 2xy + y2) (x + y) (x2 β 2xy + y2) (y + x) (ax + b) (y β x) (cy + d)
Answers: 3
Mathematics, 21.06.2019 16:40
The sum of two numbers is 86, and their difference is 20. find the two numbers
Answers: 2
7. A train which is 100 meters long is traveling at a speed of 90 km per hour. How many
seconds wil...
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