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Post New Question
All Questions
+0
234777 Questions
0
402
2
help please
For what values of y does the following equation have no solutions for x?
xy+5y+4x+20=1
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Guest
Feb 24, 2021
Feb 23, 2021
0
411
1
+20
I Need Help
Two consecutive numbers in a geometric sequence are 12 and 15.
a) Determine the common ratio.
read more ..
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Nimrod
Feb 23, 2021
0
369
1
function
Let
\[f(x) = \begin{cases} 3x + 5 &\text{if }x<-3, \\ 7+4x&\text{if }x\ge -3. \end{cases}\]
Find f(5).
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Guest
Feb 23, 2021
0
365
1
quadratic roots
Let r and s be the roots of 3x^2 + 4x + 12 = x^2 + 5x + 1. Find r^2 + s^2.
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Guest
Feb 23, 2021
+2
498
1
+130
Geometry please help :)
Let AC be Perpendicular to CE. Connect A to the midpoint D of CE and connect E to the midpoint B of AC. AD and EB intersect at point F, and BC = 7 inches, CD=9 inches. Find the area of DFE in square inches.
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HelpPls123abc
Feb 23, 2021
0
436
1
probability
Leslie has a set of 8 cards numbered 1 to 8. She randomly selects 2 cards one at a time WITHOUT replacement. What is the probability that she selects an odd number first and then an even number?
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Guest
Feb 23, 2021
0
389
2
Least common multiple
What is the least common multiple 8 and 15
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Guest
Feb 23, 2021
0
376
2
algebra
If we are given x such that 25^x - 9^y = 16 and 5^x - 3^y = 2, find x + y.
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Guest
Feb 23, 2021
0
400
1
complex numbers
There are 3 complex numbers a + bi, c + di, and e + fi. If b = 7, e = -a - c, and the sum of the numbers is -3i, find d + f.
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Guest
Feb 23, 2021
0
518
2
What is the exact value of the expression?
What is the exact value of the expression?
tan(π3)+ cos(5π6) · sin(−3π/4)
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Guest
Feb 23, 2021
0
510
1
Please Help Homework
What is the measure of the reference angle for the angle measure?
Drag a reference angle measure into each box to match the angle measure. Drag measures of the same angle measure unit.
17π/5
read more ..
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Guest
Feb 23, 2021
+1
386
1
+14
y=-x
Im just checking to see if this is correct and if not, please help?
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fallynb06
Feb 23, 2021
+1
434
3
+14
Reflection y=-x, y=2,x=7, y=x
Those are all the problems that I can't figure out.
y=x (is this corect?)
S (-6,1)
T (-6,8)
U (-3,9)
read more ..
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fallynb06
Feb 23, 2021
0
361
1
pls halp?? :<
Given that $x$ is real and $x^3+\frac{1}{x^3}=52$, find $x+\frac{1}{x}$.
tysm!!!
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Guest
Feb 23, 2021
0
408
1
coordinates
On a Cartesian coordinate plane, points (1,2) and (7,-4) are opposite vertices of a square. What is the area of the square?
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Guest
Feb 23, 2021
0
428
1
coordinates
You connect the points (0, 0) and (9, 6) with a line segment. Starting at (0, 0), you move 1/4 of the way along the segment. What is the sum of the coordinates of the point you land upon?
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Guest
Feb 23, 2021
0
392
1
Question
$140 to 18²
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Guest
Feb 23, 2021
0
490
1
I need help understanding
I need help understand
_____
WRITE YOUR OWN
read more ..
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Guest
Feb 23, 2021
+1
447
1
+62
Help!
Find all values of such that
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MysticBoba
Feb 23, 2021
0
297
1
counting problem
How many 4-digit numbers have the second digit even and the fourth digit even? (Here, digits are read from the left, so the first digit is the leftmost digit, and so on.)
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Guest
Feb 23, 2021
0
492
2
+75
Let where and and are relatively prime positive integers. Find the smallest possible value of
Let where and and are relatively prime positive integers. Find the smallest possible value of
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Destryox
Feb 23, 2021
0
375
1
Pythagorean theorem
Two airplanes leave the same airport. One heads north, and the other heads east. After some time, the northbound airplane has traveled 72 kilometers. If the two airplanes are 97 kilometers apart, how far has the eastbound airplane traveled?
read more ..
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Guest
Feb 23, 2021
0
567
1
probability
Two different integers are randomly chosen from the set
{5, 8, 7, 4, -2}
What is the probability that their product is negative? Express your answer as a common fraction.
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Guest
Feb 23, 2021
0
477
1
Two runners start running at the same time
Two runners start running at the same time from the start/finish line of a 400 meter oval track. One runner run laps of 1 minute 15 seconds and the other runs laps of 1 minute 45 seconds. How long will it be before the runners cross the start/finish line
read more ..
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Guest
Feb 23, 2021
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