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slava [35]
3 years ago
15

Please help me on question 19

Mathematics
2 answers:
kobusy [5.1K]3 years ago
4 0
Its is 9 cm. I know because the 13 cm side isn't equivalent  to the 13 cm side so if you measure it like i did you will get the answer 9cm.
tatuchka [14]3 years ago
3 0
Since it is a right triangle, you can use the Pythagorean theorem to solve it.
The Pythagorean theorem says that the sum of the squares of the legs of the triangle is equal to the sqauare of the hypotenuse.
ac^2 + ba^2 = cb^2
ac^2 + 5^2 = 13^2
ac^2 + 25 = 169 (simplify the squares)
ac^2 = 144 (subtract 25 from both sides)
ac = 12 (take the square root of both sides)

The correct answer is C. 12 cm.

hope this helps =)
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The values that correctly models the scenario of the rollercoaster graph will be:

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<h3>How does the graph model the situation</h3>

From the complete question,

For Red (x) = 6 + 4 × cos(πx/6) if 0 ≤ x < 6

where at x = 0, Red(x) = 10,

at x = 5, Red(x) = 2.5

For Green (x) = -2.5 × cos(π(x - 6)/4) + 4.5       if    6 ≤ x < 10

where at x = 10, Green (x) = 7,

at x = 6, Green (x) = 2.0

For Purple (x) = 3.5 - 3.5 × sin(π(x - 12.5)/5) if 10 ≤ x ≤ 15

where at x = 10, Purple (x) = 7,

at x = 15, Purple (x) = 0

Learn more about graphs on:

brainly.com/question/25020119

8 0
2 years ago
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lisov135 [29]
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3 years ago
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Answer:

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3 years ago
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alina1380 [7]

Answer:

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In Plan B the customer pays a monthly fee of $2.40 and then an additional 7 cents per minute of use.

Total cost of plan b = 2.40+7m

To find amount of monthly phone use for which plan a cost more than plan b, solve the inequality 8m>2.40+7m.

8m>2.40+7m\\8m-7m>2.40\\m>2.40

8 0
3 years ago
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