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vivado [14]
2 years ago
9

PLEASE HELP AND HURRY PLEASE

Mathematics
1 answer:
nikklg [1K]2 years ago
3 0

Answer:

a) 20

Step-by-step explanation:

2 hours at 50 km/h means she went 100 km

so 100/5= 20km/hr

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16. What are the values of a and b?
MrMuchimi

Answer:

  a = 20; b = 2√101

Step-by-step explanation:

The triangle at upper left and the one at lower right are similar. Ratios of corresponding sides are equal, so ...

  200/a = a/2

  400 = a^2

  √400 = 20 = a

Then, by the Pythagorean theorem, the value of b can be found:

  b = √(a^2 + 2^2) = √(400 +4) = √4·√101

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3 years ago
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or

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Answer:

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6 0
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kakasveta [241]

Answer:

C (let me know if I am wrong!)

Step-by-step explanation:

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