Three ways to solve systems of equations ?

Mathematics

2 answers:

irga5000 [103]3 years ago

4 0

Substitution, elimination, and graphing.

ozzi3 years ago

4 0

I know one is graphing:)

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A grasshopper sits on the first square of a 1×N board. He can jump over one or two squares and land on the next square. The gras

Helga [31]

Answer:

n=N-1

Step-by-step explanation:

You can start by imagining this scenario on a small scale, say 5 squares.

Assuming it starts on the first square, the grasshopper can cover the full 5 squares in 2 ways; either it can jump one square at a time, or it can jump all the way to the end and then backtrack. If it jumps one square at a time, it will take 4 hops to cover all 5 squares. If it jumps two squares at a time and then backtracks, it will take 2 jumps to cover the full 5 squares and then 2 to cover the 2 it missed, which is also 4. It will always be one less than the total amount of squares, since it begins on the first square and must touch the rest exactly once. Therefore, the smallest amount n is N-1. Hope this helps!

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Helen [10]

Look it up on google

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3 years ago

(6d+5) – (2 – 3d) =

xxMikexx [17]

Answer:

9d + 7

Step-by-step explanation:

(6d + 5) - (2 - 3d)

= (6d - (-3 d))+ (5 - 2)

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= 9d + 3

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3 years ago

Determine if xy is tangent to circle z

Kisachek [45]

Hi there!

When a segment is tangent to a circle, it is perpendicular to the radius. If you're given measurements, like the image below, you can use the pythagorean theorem to determine if the triangle is a right triangle. If the triangle is right, then the segment is tangent to the circle.

Hope this helps!! :)
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sineoko [7]

Answer:

Option C is correct.........

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