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300难题 The shaded region in the figure above represents a rectangular frame with length 18 inches and width 15 inches. The frame encloses a rectangular picture that has the same area as the frame itself. If the length and width of the picture have the same ratio as the length and width of the frame, what is the length of the picture, in inches?
300难题 In the figure above, the area of the shaded region is
OG17 OG18 OG19 OG20 OG2022 A sequence of numbers $${a}_{1}$$, $${a}_{2}$$, $${a}_{3}$$, ... is defined as follows:$${a}_{1}$$ = 3, $${a}_{2}$$ = 5, and every term in the sequence after $${a}_{2}$$ is the product of all terms in the sequence preceding it, e.g., $${a}_{3}$$ = ($${a}_{1}$$)($${a}_{2}$$) and $${a}_{4}$$ =($${a}_{1}$$)($${a}_{2}$$)($${a}_{3}$$). If $${a}_{n}$$ = t and n > 2, what is the value of $${a}_{n+2}$$ in terms of t?
Magoosh Given that x $$\neq$$5, is $$x\gt{{1}\over({x-5})^2}?$$Statement #1: x > 0Statement #2: x > 10
OG18-数学分册 If p and q are positive, is $$\frac{q}{p}$$less than 1?(1) p is less than 4.(2) q is less than 4.
If $${x}^{2}+{3}{x}+{c}=({x}+{a})({x}+{b})$$ for all x, what is the value of c ?(1)$$a = 1$$(2)$$b = 2$$
The operation* represents either addition, subtraction, or multiplication of integers, what is the value of 1*0?(1) 0*2=2(2) 2*0=2
What is the area of △ABC?1. The measures of three angles are related as 1:2:3.2. The triangle's longest side is 10.
PREP07 Test 1 Is k positive?(1) k is between -2 and 3 on the number line.(2) k is between 1 and 2 on the number line.
Magoosh $$(1\frac{4}{5})^{2}$$=
The harmonic mean of two numbers x and y, symbolized as h(x, y), is defined as 2 divided by the sum of the reciprocals of x and y, whereas the geometric mean g(x, y) is defined as the square root of the product of x and y (when this square root exists), and the arithmetic mean m(x, y) is defined as$${x+y}\over{2}$$ For which of the following pairs of values for x and y is g(x, y) equal to the arithmetic mean of h(x,y)and m(x, y)?
OG12 OG15 If ° represents one of the operations +, -, and x,is k ° (l + m) = (k ° l) + (k ° m) for all numbers k, l, and m ?(1)k ° 1 is not equal to 1 ° k for some numbers k(2)°represents subtraction.
300难题 In the rectangular coordinate system, line k passes through the point (n, - 1). Is the slope of line k greater than zero? 1.Line k passes through the origin. 2.Line k passes through the point (1,n+ 2).
190321 $$a_n=a_{n-1}+3(n \geq 1)$$.$$a_1=2$$. What's the remainder of $$a_{98}$$ when divided by 10?
Ready4

If is an integer and , what is the value of ?

(1) is divisible by at least two prime numbers greater than

(2) is prime
OG18 OG19 OG20 OG2022 GMAT、gmat题库、gmat模考、gmat考满分 In the figure above, what is the value of z? (1) x=y=1 (2)w=2
181215 f(x)=$$x^{n}$$-1. What's the solution of f(x)=0? 1: n is odd. 2: n is the multiple of 3.
191222 还原机经选题: 数论&代数 730高分节-数学测试 If a, b, and c are positive integers, is $$2^a+2^b+2^c$$ a multiple of 10？
(1)b=c
(2)c=a+1
GMAT、gmat题库、gmat模考、gmat考满分In the figure above, segments PQ and PR are each parallel to one of the rectangular coordinate axes. What is the sum of the coordinates of point P ?(1)The x - coordinate of point Q is -1.(2)The y - coordinate of point R is 1.
Ready4

An orchard worker packed bags of apples. Each bag has the same number of apples. The number of bags packed is more than the number of apples in each bag. How many apples are in each bag?

(1) A total of apples were packed.

(2) After apple is removed from the last bag packed, there are a total of apples in the last bags.