number of trials left: 1000000

Пробный Тест по Математике

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1) Let  be defined by a  b = `a^2` – `b^2` for all numbers a and b.
12575 = ?
7500
5275
10000
10250
7250
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2) Two sides of a right triangle are 10 and 6. Which of the following could be the length of the third side?
I. 2√34
II. 8√2
III. 8
I only
III only
I and II only
I and III only
I, II, and III
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3) Five numbers are consecutive so that eight times the smallest is four times the largest. What is the largest of these five integers?
5
6
7
8
9

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