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Post New Question
All Questions
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234804 Questions
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481
1
inequality
What is the value of b + c if x^2 + bx + c > 0 only when x is in (-inf,2) U (8,inf)?
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Guest
Jan 11, 2021
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467
1
+59
math
write the following formula where x is the subject (so separate x)
p (x - y) = q (z- x )
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helloguys
Jan 11, 2021
+1
390
1
equation
what is y? 5x - 4y = 7
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Guest
Jan 11, 2021
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767
2
Use the Pythagorean theorem to find x
The triangle is an isosceles triangle. The height is 6 with the altitude bisecting the base. The base is x while the sides of the triangle are unknown. The angles of the triangle on the base are both 60 degrees. I am supposed to use the Pythagorean theorem
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Guest
Jan 11, 2021
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586
3
+328
Planting Seeds
Siblings Jason, Kent, and Larry decided to plant some seeds in their garden. They started promptly starting at 1:00pm. With the three of them working together, it should take three hours.At 2:55pm, Kent received a phone call and had to go. Jason and Larry
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Potatobird
Jan 11, 2021
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571
3
triangle
Triangle ABC is isosceles with AB = BC. If AC = 20 and [ABC] = 280, then find the perimeter of triangle ABC.
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Guest
Jan 11, 2021
+1
529
3
+328
Arthur and his son's age
Four years ago Arthur is 11 times as old as his son Arthur Jr, but four years from now, Arthur will only be 3 times as old as Jr. What is Arthur’s age when he is twice as old as Arthur Jr?
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Potatobird
Jan 11, 2021
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740
1
help pls
Two shaded identical rectangular decorative tiles are first placed (one each) at the top and at the base of a door frame for a hobbit's house, as shown in Figure 1. The distance from W to H is 48 inches. Then the same two tiles are rearranged at the top
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Guest
Jan 11, 2021
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319
1
need help
A large rectangle has side lengths of x + 7 and x + 5. In the large rectangle, there is a rectangular hole with side lengths of 2x - 7 and x + 2. What is the area of the large rectangle (not including the area of the hole)? Express your answer as a polynomial
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Guest
Jan 11, 2021
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490
1
coordinates
What is the equation of the line parallel to 4x + 2y = 8 and passing through the point (0,-1) ? Write the equation in slope-intercept form.
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Guest
Jan 11, 2021
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791
2
For positive integers $n$, let $f(n)$ return the smallest positive integer $k$ such that $\frac{1}{k}$ has exactly $n$ digits after the deci
For positive integers n, let f(n) return the smallest positive integer k such that 1/k has exactly n digits after the decimal point. How many positive integer divisors does f(2010) have?
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Guest
Jan 11, 2021
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457
1
+328
Peter's Coins
The number of quarters, dimes, and nickels in Peter’s pocket forms a 3:4:5 ratio.Together, Peter has a total $5.60. How many coins does Peter have?
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Potatobird
Jan 11, 2021
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360
1
geometry
Points T and U lie on a circle centered at O, and point P is outside the circle such that PT and PU are tangent to the circle. If angle TPO = 36 degrees, then what is the measure of minor arc TU, in degrees?
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Guest
Jan 11, 2021
0
431
1
+328
Coach Morris and the trophies
Coach Morris of the Math Club bought trophies for the year-end award. She received the trophies either as boxes of 4 gold trophies each, or boxes boxes of 5 smaller “Honorable Mention” trophies each. Coach Morris need 2 gold trophies for every 3 silver
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Potatobird
Jan 11, 2021
0
596
1
+328
Coach Hardy and the gifts
The gifts that Coach Hardy ordered for his students had just been delivered to his house. Given the large number of students, if he were to pack the gifts himself, itwould take him 3 hours! Fortunately, one hour into packing, his son Timothy was done with
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Potatobird
Jan 11, 2021
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542
2
Geometry
The length of the shorter altitude and the shorter leg of parallelogram are 9 cm and squared sqrt(82 cm. The length of the longer diagonal is 15 cm. What is the area of this parallelogram?
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Guest
Jan 11, 2021
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331
0
Probability Question, Please Help
In each of the following cases, find the probability that a binary string of length 8 begins with 10 or contains exactly four 0-s if the bits are independent.
(i) 0 and 1 are equally likely to appear in any place;
(ii) the
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Guest
Jan 11, 2021
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311
0
help needed
Find and such that (4x + 8)/(x^2 - 8x + 15) = A/(x - 3) + B/(x - 5) for all x besides 3 and 5. Express your answer as an ordered pair in the form (A,B).
Guest
Jan 11, 2021
0
498
3
coordinates
In the coordinate plane, A=(4,-1), B=(6,-2), and C=(1,-2). There exists a point Q and a constant k such that for any point P,
PA^2 + PB^2 + PC^2 = 3PQ^2 + k
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Guest
Jan 11, 2021
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363
1
+328
Melanie's paint
Melanie has a 4 gallon mixture of “homemade” orange paint mixed with red andyellow paint at a 3:7 ratio. However, the orange is a little bit too red to her liking,and she realized that she actually wanted a 2:13 ratio instead. Fortunately, she hasa lot
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Potatobird
Jan 11, 2021
0
544
2
complex numbers
Solve z^3 = 8*i in complex numbers.
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Guest
Jan 11, 2021
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389
2
help its due today
1) If x^2+12x+36+24=0
for some constants a and c, then find a
2) If x^2+12x+36+24=0
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Guest
Jan 11, 2021
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316
1
algebra
The sum of the ages of Anna, Bernard and Carl is 32 years. Bernard is 6 years older than Anna, and Carl is 8 years older than Bernard. What is Anna age?
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Guest
Jan 11, 2021
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