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Post New Question
All Questions
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234923 Questions
0
265
1
Geometry
Parallelogram ABCD has area $148$, with $AB = 16$ and $BC = 12$.
Find the length of segment DX.
read more ..
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Guest
Oct 10, 2021
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348
1
Roots
If the roots of the quadratic equation 1/2*x^2 + 99x + c are x = -99 - sqrt(7801) and -99 + sqrt(7801), then what is the value of c?
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Guest
Oct 10, 2021
Oct 9, 2021
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335
1
Inequality
Solve |4y + 1| < |2y - 3| - 7.
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Guest
Oct 9, 2021
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351
1
Probability
Two distinct numbers are selected simultaneously and at random from the set (1, 2, 3, 4, 5, 6). What is the probability that the smaller one divides the larger one? Express your answer as a common fraction.
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Guest
Oct 9, 2021
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353
1
Multiples
A number is selected at random from 1 through 100, inclusive. What is the probability that the number is a multiple of 8?
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Guest
Oct 9, 2021
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250
1
Help probability
Two 6-sided dice, one red and one green, are rolled. What is the probability that the red die shows an odd number and the green die shows an even number?
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Guest
Oct 9, 2021
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263
1
Number Theory
If m is a 3-digit positive integer such that lcm[8m,10^10]=2*lcm[m,10^10], then what is the value of m?
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Guest
Oct 9, 2021
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208
0
help pls
A cricket pitch measures chain by feet. What is the area of a cricket pitch in square feet?
(Useful information: there are feet in a yard, and there are yards in a chain.)
Guest
Oct 9, 2021
0
292
1
Multiples
How many multiples of 17 are greater than -50 and less than 250?
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Guest
Oct 9, 2021
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399
3
suppose sin(a)+cos(b)=-0.2 while sin(b)+cos(a)=1.6
suppose sin(a)+cos(b)=-0.2 while sin(b)+cos(a)=1.6
What is the value ofsin (a+b)
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Guest
Oct 9, 2021
0
356
2
plz help
How many integers n between 1 and 10,000 are there such that $7/n$ is a terminating decimal?
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Guest
Oct 9, 2021
0
278
1
help number theory
If the least common multiple of two 6-digit integers has $8$ digits, then their greatest common divisor has at most how many digits?
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Guest
Oct 9, 2021
0
576
1
Math `
Dakota had 0.89 grams of pepper. Then she used 0.81 grams of the pepper to make some scrambled eggs. How much pepper does Dakota have left?
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Guest
Oct 9, 2021
0
403
1
Rates question
Grady rides his bike 60% faster than his little brother Noah. If Grady rides 15 miles further than Noah in two hours, how fast in miles per hour does Noah ride?
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Guest
Oct 9, 2021
0
224
0
Algebra
Let f(x) = 16x + 3. Find the sum of all x that satisfy the equation f-1(x) = f(2x)-1.
Guest
Oct 9, 2021
0
272
1
Counting
How many 3-digit numbers have the property that the units digit is at least twice the hundreds digit?
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Guest
Oct 9, 2021
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424
1
Counting
How many license plates consist of 2 letters followed by 2 digits, if one of the digits must be odd?
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Guest
Oct 9, 2021
0
196
0
Algebra
Let f(x) be a polynomial such that f(0)=4, f(1)=5, and f(2)=10. Find the remainder when f(x) is divided by x(x - 1)(x - 2).
Guest
Oct 9, 2021
0
330
1
Coordinates
Let X, Y and Z be points such that xz/yz=zy/xy=1/2. If xy=(1,7), z=(-2,-3) then what is the sum of the coordinates of X?
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Guest
Oct 9, 2021
0
416
2
help plz
Find all values of r such that (r - 3)/sqrt(r) = -2*sqrt(r).
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Guest
Oct 9, 2021
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270
1
Help Urgent
Find the value of
. Your answer will be of the form
where
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Guest
Oct 9, 2021
0
209
0
HALP PLZ
There was a funny picture going around the Internet about a 6-foot social distancing sign which made a math mistake, because the people along each edge of the square are less than 6 feet apart. However, it turns out that if you just have two of the people
read more ..
Guest
Oct 9, 2021
0
245
0
HELP
Suppose that one particular amphitheater has 25 equally spaced semicircular rings to sit on, numbered from 1 to 25, where 25 is farthest from the stage. Alice and Charlie are sitting at opposite ends of the semicircular ring number 12. Which ring number
read more ..
Guest
Oct 9, 2021
0
332
1
5 1/4 -1 5/8
5 1/4 -1 5/8
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Guest
Oct 9, 2021
0
420
1
multiply the following rational algebraic expression
4ac2 10d2x2 5x 12a2c2
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Guest
Oct 9, 2021
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