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Post New Question
All Questions
+0
231347 Questions
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773
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+937
PSL4#46
Answer: 110
What I did:
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dgfgrafgdfge111
Jul 31, 2019
+1
889
8
+937
PSL4#43
Answer: 119
I had no idea how to approach this.
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dgfgrafgdfge111
Jul 31, 2019
0
740
4
Please help with inequality
Solve the inequality
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Guest
Jul 31, 2019
0
0
0
Ellipse problem
A circle has the same center as an ellipse and passes through the foci and of the ellipse. The two curves intersect in 4 points. Let P be any point of intersection. If the major axis of the ellipse is 15 and the area of triangle is 26,
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Guest
Jul 31, 2019
0
889
3
Ellipse problem
A circle has the same center as an ellipse and passes through the foci and of the ellipse. The two curves intersect in 4 points. Let P be any point of intersection. If the major axis of the ellipse is 15 and the area of triangle is 26,
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Guest
Jul 31, 2019
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678
1
Please help 2 problems
1) When a polynomial is divided by -3x^5 + 10x - 11, what are the possible degrees of the remainder?
2) When a polynomial p(x) is divided by x + 1, the remainder is 5. When p(x) is divided by x + 5, the remainder is
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Guest
Jul 31, 2019
Jul 30, 2019
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845
6
thanks for any help!
(a) Compute the sums of the squares of Rows 1-4 of Pascal's Triangle. That is, compute: Do these sums appear anywhere else in Pascal's Triangle? (b) Guess at an identity based on your observations from part (a). Your identity should be of the form (You
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Guest
Jul 30, 2019
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942
7
Please Explain
Lizzie has a strange deck of 24 number cards that contains cards labeled 2 through 9 in three different colors (red, blue, and green).
(a) In how many ways can she draw one card from each color so that the sum of all the cards is 10?
(b) In how many
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Guest
Jul 30, 2019
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1002
4
Number Theory
What is 3^{-1}+3^{-2} mod 25? Express your answer as an integer from 0 to 24, inclusive.
I know that 3^{-1}=17, but what does 3^{-2} mean?
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Guest
Jul 30, 2019
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705
1
math
Find a direction vector \[ \mathbf{d} = \begin{pmatrix}d_1 \\ d_2 \\d_3 \end{pmatrix}\]for the line through $B = (1, 1, 2)$ and $C= (2, 3, 1)$ such that $d_1 + d_2 + d_3 = 10.$
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Guest
Jul 30, 2019
+3
987
1
+794
funny history mem
funny history mem
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travisio
Jul 30, 2019
0
734
1
Let A = (1, 0, -1), B = (2, 3, 1), and C = (0, 1, 1). Then what are the vectors , and ?
Let A = (1, 0, -1), B = (2, 3, 1), and C = (0, 1, 1). Then what are the vectors , and ?
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Guest
Jul 30, 2019
+4
758
1
+382
Describe what skeletal bone looks like and what it is composed of at a microscopic level and a macromicroscopic level.
Describe what skeletal bone looks like and what it is composed of at a microscopic level and a macromicroscopic level.
off-topic
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hellospeedmind
Jul 30, 2019
0
1785
3
help
A right circular cylinder with radius 2 is inscribed in a hemisphere with radius 5 so that its bases are parallel to the base of the hemisphere. What is the height of this cylinder?
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Guest
Jul 30, 2019
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647
1
Sum of 2 squares
How many pairs of squares can be made to sum up to 325^4? Thanks for help.
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Guest
Jul 30, 2019
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809
3
Help! Thanks in Advance
The function y={x^3+8x^2+21x+18}/{x+2} can be simplified into the function y= Ax^2 + bx + c with a point of discontinuity at x=D .What is the sum of the values of A, B, C, and D?
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Guest
Jul 30, 2019
+3
2330
6
+152
Graphing Functions please help!
The complete graph of $y=f(x),$ which consists of five line segments, is shown in red below. (On this graph, the distance between grid lines is $1.$) Let $a$ and $b$ be the largest negative integer and the smallest positive integer, respectively,
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EvanWei123
Jul 30, 2019
0
1010
5
+1206
help
A ball travels on a parabolic path in which the height (in feet) is given by the expression , where is the time after launch. What is the maximum height of the ball, in feet?
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Logic
Jul 30, 2019
+2
993
6
+159
PLease Help
Let and be real numbers such that
If is an integer, what is its value?
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Havingfun
Jul 30, 2019
-1
879
2
+170
Help
Assume . Below are five equations for . Which equation has the largest solution ?
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FlyEaglesFly
Jul 30, 2019
+1
766
1
+937
PSL4#41
Answer: 33/16660
What I did:
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dgfgrafgdfge111
Jul 30, 2019
0
836
6
+937
PSL4#33
Answer: 12
What I did:
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Melody
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dgfgrafgdfge111
Jul 30, 2019
0
846
5
math
If there exists a matrix $\mathbf{A}$ such that \[ \mathbf{A} \begin{pmatrix} 1 \\ 0 \\ 0 \end{pmatrix} = \begin{pmatrix} -3 \\ 4 \\ 0 \end{pmatrix},\mathbf{A} \begin{pmatrix} 0 \\ 1 \\ 1 \end{pmatrix} = \begin{pmatrix} 1 \\ 2 \\ 3 \end{pmatrix}, \mathbf{A}
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Guest
Jul 30, 2019
0
739
2
+937
PSL4#31
Answer: 1806
What I did:
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dgfgrafgdfge111
Jul 30, 2019
0
1504
2
Help please
Find the volume of the parallelepiped with vertices (0,0,0), (3,0,0), (0,5,1), (3,5,1), (2,0,5), (5,0,5), (2,5,6), and (5,5,6).
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Guest
Jul 30, 2019
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