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KMFDS If (y+3)(y-1) - (y-2)(y-1) = r(y-1), what is the value of y?(1) $${r}^{2}={25}$$(2) r = 5
PREP07 Test 1 The perimeters of square region S and rectangular region R are equal. If the sides of R are in the ratio 2 : 3, what is the ratio of the area of region R to the area of region S ?
OG12 PREP07 Test 2 In the rectangular coordinate system, are the points (r,s) and (u,v) equidistant from the origin?(1)r+s=1(2)u = 1 - r and v = 1 - s
181215 r,s are non-zero integers. Is r/s a terminating decimal? 1: 1/r is a terminating decimal. 2: 1/s is a terminating decimal.
If r > 0, is rs < 0 ?(1) s < 0(2) s < r
第一期 If r and s are non-zero integers. Is r/s a terminating decimal?
(1)1/r is a terminating decimal.
(2)1/s is a terminating decimal.
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Machines , , and took a total of 220 minutes to produce all of the parts for a new device. If machine took 2 times as many minutes as machine and 3 times as many minutes as machine , how many more minutes did machine take than machine ?
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If , , and are constants, where , and for all numbers , what is the value of ?
OG15 OG16 OG17 OG18 OG19 OG20 OG2022 If r and s are positive integers, can the fraction r/s be expressed as a decimal with only a finite number of nonzero digits?(1) s is a factor of 100(2) r is a factor of 100
What is the area of triangle R?1. The base of triangle R is 15.2. The ratio of the altitude dropped from the vertex opposite the base is related to the base of R is 5 to 1.
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If , which must be greater than 1?

I.

II.

III.

What is the value of $${p}^{r}$$?(1)$$p = 1$$(2)$$r = 1$$
OG18 OG19 OG20 OG2022 If p $$\neq 0$$ and $$p - \frac{1-p^{2}}{p} = \frac{r}{p}$$, then r =
PREP07 Test 1 If $$R = 1 + 2xy + x^2y^2$$, what is the value of xy ?(1) R = 0(2) x > 0
OG15 OG16 OG17 OG18 OG19 OG20 OG2022 In the xy-coordinate plane, is point R equidistant from points (-3,-3) and (1,-3) ?(1) The x-coordinate of point R is -1(2) Point R lies on the line y = -3.
OG12 OG15 OG16 How many integers are there between, but not including, integers r and s ?(1)s-r= 10(2)There are 9 integers between, but not including, r + 1 and s + 1.
300难题 Of the numbers q, r, s, and t which is greatest? 1.The average (arithmetic mean) of q and r is s. 2.The sum of q and r is t.
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A line in the -coordinate plane passes through the points and . Does this line pass through point ?

(1) The coordinates of point are

(2) Point is equidistant from points and

If $1,000 will be deposited in a bank account and I is the dollar amount of interest earned from the original deposit, represented as $${I}={1000\{{({1}+\frac{r}{100})^{n}-{1}}}\}$$, and the annual interest rate is r percent, is $$r > 8$$ percent?(1) The deposit earns a total of $210 in interest in the first 2 years.(2) $$({1}+\frac{r}{100})^{2} >{1.15}$$
PREP07 Test 1 If m, r, x, and y are positive, is the ratio of m to r equal to the ratio of x to y ?(1) The ratio of m to y is equal to the ratio of x to r.(2) The ratio of m + x to r + y is equal to the ratio of x to y.