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Post New Question
All Questions
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232613 Questions
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360
2
Geometry
n trapezoid EFGH,line EF is parallel to line GH and P is the midpoint of side line EH If the area of triangle PDF is 18 , and the area of triangle PGH is 30 , then find the area of trapezoid EFGH .
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Guest
Oct 18, 2021
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339
1
Geometry
Let WZYZ be a trapezoid with bases XY andWZ. In this trapezoid,angle ZXW = 105,angle XWZ = 43 , and angle XYZ = 147. Find angle YXZ in degrees.
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Guest
Oct 18, 2021
0
464
1
+1982
This is the formula for the angular frequency ω of a mass m suspended from a spring of spring constant k. Solve this formula for k.
This is the formula for the angular frequency ω of a mass m suspended from a spring of spring constant k. Solve this formula for k.
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macabresubwoofer
Oct 18, 2021
0
217
0
Expected value
In a lottery, a ticket costs 3 dollars, and the jackpot is worth 250000 dollars. In all, 200000 tickets are sold, one ticket is randomly drawn, and the winner is awarded the jackpot. What are the expected winnings in dollars of buying one ticket
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Guest
Oct 18, 2021
0
453
1
+1982
If Natalie wants to leave a 24% tip, how much should she pay? Round to the nearest cent.
Natalie's meal at Fresh Catchery cost $26.02, not including tip. If Natalie wants to leave a 24% tip, how much should she pay? Round to the nearest cent.
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macabresubwoofer
Oct 18, 2021
0
206
0
inequality
What is the value of b+c if x^2+bx+c>0 only when x is (-inf, -2) U (8, inf)
Guest
Oct 18, 2021
0
319
0
+1982
Solve the following formula for the indicated variable.
Solve the following formula for the indicated variable.
macabresubwoofer
Oct 18, 2021
0
399
2
+1982
After how many hours will the two trucks be 605 miles apart?
Two trucks leave a warehouse at the same time. One travels due south at an average speed of 48 miles per hour, and the other travels due north at an average speed of 47 miles per hour. After how many hours will the two trucks be 427.5 miles apart?
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macabresubwoofer
Oct 18, 2021
Oct 17, 2021
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228
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Probability
There are 3 math clubs in the school district, with 5, 7, and 8 students respectively. Each club has two co-presidents. If I randomly select a club, and then randomly select three members of that club to give a copy of Introduction to Counting and
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Guest
Oct 17, 2021
0
318
1
This exercise explores elementary properties of linear functions. Suppose that y is a linear function of x. The slope is −2.4. An increase
This exercise explores elementary properties of linear functions.
Suppose that y is a linear function of x. The slope is −2.4. An increase of 6.1 units in x causes what change in y?
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Guest
Oct 17, 2021
0
267
1
help
3x^2-x+8=0 find the quadratic equation
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Guest
Oct 17, 2021
0
193
0
help algebra
The parabolas defined by the equations y=-x^2-x+1 and y=2x^2-3 intersect at points (a,b) and (c,d), where $c\ge a$. What is c-a? Express your answer as a common fraction.
Guest
Oct 17, 2021
0
213
0
Coordinates
In terms of pi, what is the area of the circle defined by the equation 2x^2+2y^2+10x-6y-18=4x-2y+12?
Guest
Oct 17, 2021
0
211
0
Graphing problem
A lattice point in the x,y -plane is a point both of whose coordinates are integers (not necessarily positive). How many lattice points lie on the graph of the equation x^2 - y^2 = 48?
Guest
Oct 17, 2021
0
176
0
Counting
How many ways are there to put 4 balls in 3 boxes if the balls are distinguishable and the boxes are also distinguishable?
Guest
Oct 17, 2021
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207
0
Inequality
Let w, x, y, and z be positive real numbers. If w + 2x + y + 2z = 8, then what is the maximum value of wxyz?
Guest
Oct 17, 2021
0
198
0
Algebra
If (3x^2 - 4x + 7)/(x - 1) = m and x can be any real number except 1, what real value can m NOT have?
Guest
Oct 17, 2021
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213
0
Inequality
Find all x that satisfy the inequality (2x+10)(x+3)<(2x+9)(x+8). Express your answer in interval notation.
Guest
Oct 17, 2021
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185
0
Algebra
Find all values of real values of p such that
2(x + 4)(x - 2p)
has a minimum value of $-28$ over all real values of x.
Guest
Oct 17, 2021
0
249
0
Algebra
Let c be a real number. What is the maximum value of c such that the graph of the parabola 3*x^2 has at most one point of intersection with the line y = x + c?
Guest
Oct 17, 2021
+1
418
2
PLZ HELP
Jeff bought a box of bundt cakes containing a total of 288 pieces of chocolate bundt cakes and vanilla bundt cakes. 4/9 of the bundt cakes were chocolate and the rest were vanilla. After he ate some chocolate bundt cakes, the number of chocolates left was
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Guest
Oct 17, 2021
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180
0
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?
Guest
Oct 17, 2021
0
207
0
probability
A point (x,y) is randomly selected such that 0 <= x <= 3 and 0 <= y <= 6. What is the probability that x + y <= 5? Express your answer as a common fraction.
Guest
Oct 17, 2021
0
419
4
+137
Plz help ASAP
Children's tickets to a local play cost $1.50 less than adult tickets. At one performance 325 children tickets and 175 adult tickets were sold for a total of $3512.50. How many dollars did an adult ticket cost?
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NaturalDisaster
Oct 17, 2021
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