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Post New Question
All Questions
+0
230633 Questions
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430
5
help number theory
Find positive integers a,b and c such that
\[ \dfrac38 = \frac 1{a+ \frac1{b+ \frac1c}}. \]
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Guest
Feb 10, 2021
+1
531
2
how many perfect squares less than 1000 are divisible by 8.
how many perfect squares less than 1000 are divisible by 8.
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Guest
Feb 10, 2021
0
396
1
acid mixture
Pure acid is to be added to a 10% acid solution to obtain 90L of 58% solution. What amounts of each should be used? How many of 100% pure acid should be used to make the solution?
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Guest
Feb 10, 2021
0
665
2
+215
Please answer as fast as possible and show your work and/or explain
A glass pitcher is filled with water. 1/8 of the water is poured equally into 2 glasses.If 1/4 of the remaining water is poured out of the pitcher to water a plant, how many cups of water are left in the pitcher?
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alston
Feb 10, 2021
0
406
1
coordinates
Two sides of a square are consecutively based upon two straight lines $6\times x - 8\times y + 5 = 0$ and $3\times x - 4 \times y + 10 = 0$. Find the area of this square.
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Guest
Feb 10, 2021
0
608
1
Let $\mathbf{p} = \begin{pmatrix} 2\\ -1\\ 2 \end{pmatrix}$ and $\mathbf{d} =\begin{pmatrix} 1\\ -1\\ 4 \end{pmatrix}$ and consider the par
a) Let $\mathbf{p} = \begin{pmatrix} 2\\ -1\\ 2 \end{pmatrix}$ and $\mathbf{d} =\begin{pmatrix} 1\\ -1\\ 4 \end{pmatrix}$ and consider the particle that visits the point $(x,y,z)$ at time $t$ if
\[\begin{pmatrix} x \\ y \\ z \end{pmatrix}
read more ..
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Guest
Feb 10, 2021
0
462
0
A sine function has the following key features:
A sine function has the following key features:
Period = 12
Amplitude = 4
Midline: y = 1
read more ..
Guest
Feb 10, 2021
0
400
1
similar triangles
The two triangles are similar.
What is the value of x ?
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Guest
Feb 10, 2021
0
280
0
help pls
Two airplanes leave an airport at the same time, one going northwest (N35°W) at 401 mph and the other going east at 338 mph. How far apart are the planes after 4 hours to the nearest mile?
Guest
Feb 10, 2021
0
436
1
HELP THIS IS DUE TOMORROW
If a ratio is 50 to1 what will the x axis be if y is equal to 8
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Guest
Feb 10, 2021
0
388
1
help
Do teachers basically answer questions on this website
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Guest
Feb 10, 2021
0
389
1
quadratic
Fill in the blank with a constant, so that the resulting quadratic is the square of a binomial. x^2 + 4x + 5x + ___
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Guest
Feb 10, 2021
0
745
1
pls help on parametrization question
Consider a particle following the parametric equations
x = cos(4t)
y = sin(6t)
read more ..
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Guest
Feb 10, 2021
0
316
1
algebra
At their last game the basketball team sold sodas and waters which made a total of $\$151$.They sold a total of 58 drinks. If they charged $\$2$ for each water and $\$3$ for each soda,what in reasonable conclusion that can be made about the number of drinks
read more ..
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Guest
Feb 10, 2021
0
378
2
area
What is the area of this figure?
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Guest
Feb 10, 2021
0
393
1
+130
help, these are hard for me
1. The graph of y=f(x) is shown below in red. For which x value does f(x)=4?
(Assume grid lines are spaced 1 unit apart)
read more ..
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mintjellyxd
Feb 10, 2021
0
300
2
graphs
the graph of y=f(x) is shown below, in red. Find the equation that corresponds to the blue graph.
Enter your answer in the
read more ..
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Guest
Feb 10, 2021
0
288
0
help plz
Kadeem spends the afternoon reading a book he started yesterday. He reads 120 pages in 3 hours. One hour after Kadeem begins reading, he is on page 80. Write an equation for the page he is on, y, as a function of minutes spent reading, x. What page number
read more ..
Guest
Feb 10, 2021
0
944
2
+195
Help please
The equation $x^2 + 6x + y^2 + 6y = 18$ represents a circle. What is its center? Write your answer as an ordered pair.
Find the $y$-intercept of the graph $x^2 - 10x + y^2 - 10y + 25 = 0$. Write your answer as an ordered pair.
read more ..
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QuestionMachine
Feb 10, 2021
0
455
1
graphing problem
The graph of y=f(x) is shown below in red. For which x value does f(x)=4
Assume grid lines are spaced 1 unit apart
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Guest
Feb 10, 2021
0
381
1
price of a car
The original price of a car is $\$25000$. Each year, its value depreciates (loses value) by 13%. Three years after its purchase, what is the value of the car?
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Guest
Feb 10, 2021
+1
504
1
+195
I need a bit of help
Find the area of the region satisfying the inequality $x^2 + y^2 \leq 4x + 6y+13$
Find the radius of the circle with equation $9x^2-18x+9y^2+36y+44=0.$
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QuestionMachine
Feb 10, 2021
0
258
1
confused on word problem
The Celluloid Cinema sold 150 tickets to a movie. Some of these were child tickets and the rest were adult tickets. A child ticket cost $\$7.75$ and an adult ticket cost $\$10.25$. If the cinema soll $\$1470$ worth of tickets, how many adult tickets and
read more ..
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Guest
Feb 10, 2021
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