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Post New Question
All Questions
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234927 Questions
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357
1
Algebra
Let f(x) = x^4-3x^2 + 2 and g(x) = 2x^5 - 6x^2 + 2x -1. Let b be a constant. What is the smallest possible degree of the polynomial f(x) + b* g(x)?
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Guest
Oct 5, 2021
+1
401
1
+678
solve it!
Oh no! Please solve this question! (it's a joke btw.)
y^x=x^y
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Straight
Oct 5, 2021
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217
0
Derivatives
derivative of f(x)=ln(tanhx)
Guest
Oct 5, 2021
0
265
1
Triangle Inequality
Two of the sides of a triangle are 11 and 18. What are the possible lengths of the third side, if it also has to be an integer?
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Guest
Oct 5, 2021
0
365
1
Triangle Inequality
In triangle ABC, AB = 17 and BC = 27. For how many integer values of AC is ABC acute?
Im pretty sure a triangle is acute if the longest side squared is smaller than the smaller sides squared added together
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Guest
Oct 5, 2021
0
411
3
Qns
Marcus spent $36 on some plates and 3/4 of his remaining money on some cups. If he had 1/6 of his original sum of money left, how much money did he have at first?
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Guest
Oct 5, 2021
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322
1
Quadratic
Portia solved the quadratic equation x^2 + 2*sqrt(2)*x + 1 = 0 by completing the square. In the process, she came up with the equivalent equation
(x + r)^2 = s,
where r and s are constants. What is s?
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Guest
Oct 5, 2021
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558
1
+4
Find a formula for quadratic function whose graph has its vertex at (7,6) and its y-intercept at y=0
Find a formula for quadratic function whose graph has its vertex at (7,6) and its y-intercept at y=0
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Terica
Oct 5, 2021
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195
0
Probability
A cook has 10 red peppers and 5 green peppers. If the cook selects 6 peppers at random, what is the probability that he selects at least 3 green peppers? Express your answer as a common fraction.
Guest
Oct 5, 2021
0
411
4
Up, down one. Up, down two. Up, down three.
Mr Leon spent $60 on some apples, mangoes and pears in the ratio 3:5:2. The number of apples was twice the number of mangoes. The number of pears was 1/3 the number of apples. The mangoes were at 3 for $5. How many fruits did he buy altogether?
read more ..
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Guest
Oct 5, 2021
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301
2
was this always easy? can someone help :(
There was a total of 41 pupils in a class. Each girl made 35 bookmarks while each boy made 20 bookmarks for a fundraising project. The total number of bookmarks made by all the pupils was 1165. How many girls were there in the class?
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Guest
Oct 5, 2021
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346
1
Hi please help. I'm trying to solve but couldn't. Will really appreciate
Gerald and Wilson went shopping with the same amount of money. After Gerald spent $60 and Wilson spent $20, Wilson had five times as much money left as Gerald. How much money did each of them bring along for shopping?
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Guest
Oct 5, 2021
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254
1
Number Theory
What is the modulo 5 remainder of the sum 1+2+3+4+5+...+123+124+125+126+127?
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Guest
Oct 5, 2021
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212
0
help geometry
The tangent to the circumcircle of triangle WXY at X is drawn, and the line through W that is parallel to this tangent intersects at Z. If XY = 14 and $WX = 5$ find YZ.
read more ..
Guest
Oct 5, 2021
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199
0
Math problem
1. Nine points are arranged in a 3 x 3 grid, as shown below. In how many different ways can you choose three points, so that they form a triangle?
read more ..
Guest
Oct 5, 2021
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333
1
new
The diagram shows a sector of circle radius 10 cm find the area of the sector to one decimal place
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Guest
Oct 5, 2021
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195
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Counting question
In how many ways can you spell the word FOOT in the grid below? You can start on any letter F, then on each step you can step one letter in any direction (up, down, left, right, or diagonal)
\begin{array}{cccc} F & F &
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Guest
Oct 5, 2021
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367
2
Counting
A coin is tossed 10 times. How many different sequences of tosses could there have been, if at least $3$ of the tosses were heads?
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Guest
Oct 5, 2021
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205
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Coordinates
Points A, B, and C are given in the coordinate plane. There exists a point Q and a constant k such that for any point P,
PA^2 + PB^2 + PC^2 = 3*PQ^2 + k.
If A = (4,-1), B = (8,-2), and C = (6,-7), then find the constant
read more ..
Guest
Oct 5, 2021
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400
1
Quadratic
Find all values of x such that 3x^2 + 14x + 8 = 7x + 14. If you find more than one value, then list your solutions, separated by commas.
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Guest
Oct 5, 2021
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230
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help probability
In a class of 28 students, the teacher selects four people at random to participate in a geography contest. What is the probability that this group of four students includes at least one of the top three geography students in the class? Express your answer
read more ..
Guest
Oct 5, 2021
0
389
1
+80
TNT nose
When decimal currency came to Australia in 1966 (that's exactly 50 years ago!), there were 6 coins -- 1 cent, 2 cent, 5 cent, 10 cent, 20 cent and 50 cent coins. What is the SMALLEST number of these coins you would need to make 89 cents?
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DoctorOcopisMonOct
Oct 5, 2021
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384
2
Please help ASAP.
At a donation drive, the residents of Punggol had to give away some cans of
food. On Monday, they gave away of the cans of food. On Tuesday, they
gave away 16 more cans of food than on Monday. On Wednesday, they gave
away
read more ..
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Guest
Oct 5, 2021
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336
4
Someone pls explain! Need It urgently! Thx!
Alex and Benjamin were each given some stickers. Alex had four times as many stickers as Benjamin. After Alex gave away 203 stickers and Benjamin gave away 26 stickers, Benjamin had three times as many stickers left as Alex. How many more stickers did Alex
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Guest
Oct 5, 2021
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