Answer:
10
Step-by-step explanation:
You can see that both triangles are the same except for one thing: one is smaller. Since 7 is half of 14 and both triangles are similar, x stands for 10. That is because 10 is half of 20! :D
T² -1 =(t)² - (1)² = (t + 1) (t - 1)
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Answer: (t + 1) (t - 1)
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If Helen takes 3 hours on Monday at p exercises per hour, then she does 3p exercises. If she does the same number in two hours, then every hour, she does 3p/2 exercises. <span />
Letter D , it is 5
You can see the curve is at 5
