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题目内容
What is the units digit of 5$$x^{3}$$, where x is a positive even integer?
What is the units digit of $$2^{2012}$$+$$3^{2012}$$+$$5^{2012}$$+$$7^{2012}$$?
x and y are positive integers less than 30 where x is a prime, y is odd but not a prime.

Which of the following CANNOT be x+y?

Quantity A

x+y

Quantity B

z



Line l is parallel to line m, ∠ECA=38°,and ∠ACB=48°. What is the degree of ∠CBF?

Line l is parallel with line m

Quantity A

AD

Quantity B

BC




What is the measure of the unknown angle?

Quantity A

The sum of interior angles of a pentagon plus 90°

Quantity B

The sum of interior angles of a hexagon


Quantity A

The average degree of all interior angles in a trapezoid

Quantity B

The average degree of all interior angles in a pentagon


The perimeter of a regular pentagon is twice the perimeter of an equilateral triangle.

Quantity A

The side of the pentagon

Quantity B

The side of the equilateral triangle



In the figure below is a regular octagon. Each side has a length of 1. What is the area of △ABC?

Quantity A

a

Quantity B

60°


Two sides of an isosceles triangle have lengths 5 and 5.
Quantity A: The perimeter of the triangle
Quantity B: 15

What is the value of x?

Quantity A: a
Quantity B: b

In the figure above, the length of BE is 4, and the length of CF is 3, what is the perimeter of triangle ABC?

The x-coordinate of A is 0.5, the x-coordinate of B is 2, while their y-coordinates are the same.

Quantity A

x-coordinate of C

Quantity B

1.75


An equilateral triangle has a side of 6
Quantity A: The area of the triangle
Quantity B: 18
Triangle T is equilateral and has a height of 20, and triangle W is isosceles and has a height of 20.

Quantity A

The area of the isosceles triangle T

Quantity B

The area of the equilateral triangle W


If $$y=\frac{x+w}{2}$$ , what is $$w-y$$ in terms of $$x$$ and $$y$$?

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