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Post New Question
All Questions
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231266 Questions
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338
1
+501
clever algebraic manipulations
Suppose that for some $a,b,c$ we have $a+b+c = 6$, $ab+ac+bc = 5$ and $abc = -12$. What is $a^3+b^3+c^3$?
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ellapow
Mar 19, 2021
0
368
1
+501
clever algebraic manipulations
Real numbers x and y satisfy the equation $x^2 + y^2 = 10x - 6y - 34$. What is $x+y$?
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ellapow
Mar 19, 2021
0
450
0
You have 6 reindeer, Prancer, Rudy, Balthazar, Quentin, Jebediah, and Lancer, and you want to have 3 fly your sleigh. You always have your
You have 6 reindeer, Prancer, Rudy, Balthazar, Quentin, Jebediah, and Lancer, and you want to have 3 fly your sleigh. You always have your reindeer fly in a single-file line.
Guest
Mar 19, 2021
0
452
1
+230
help me pls - clever algebraic manipulations
If $3a + b + c = -3, a+3b+c = 9, a+b+3c = 19$, then find $abc$.
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wizzymath
Mar 19, 2021
0
333
0
+43
can u please help me
Determine whether u and v are equivalent. Explain.
Determine the magnitude and slope of each vector.
far987
Mar 19, 2021
-1
406
1
Help!
I have a hat that contains six nickels and five pennies. I draw coins from the hat at random, without replacement. Find the probability that after drawing four coins, I have removed at most two pennies from the hat.
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Guest
Mar 19, 2021
0
303
0
geometry
The Davis family is going to reseed the grass in the backyard. Their yard is irregularly shaped with a cement patio and rectangular garden as shown below.Given that the family will not need grass seed for the patio or the garden areas, what is the total
read more ..
Guest
Mar 19, 2021
-1
249
0
parabola
if a parabola has its vertex at (3,-5) and one of its x-intercepts at x=8, what is the other x-intercept?
Guest
Mar 19, 2021
0
442
1
+501
Clever Algebraic Manipulations
Let $x, y, z$ be real numbers so that
\begin{align*}
y+z & = 13, \\
z+x & = 14, \\
x+y & = 15.
\end{align*}
Find $\sqrt{xyz(x+y+z)}$.
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ellapow
Mar 19, 2021
0
230
0
parabola
For the parabola below, state the a) vertex b) direction of opening c) axis of symmetry d) x-intercept e) y-intercept
Guest
Mar 19, 2021
0
220
0
PLSSSS
[3^9:(3^2. 3)^3]^100
Guest
Mar 19, 2021
0
698
1
Find angle P in the Parallelogram LMNP
Find angle P in the Parallelogram LMNP
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Guest
Mar 19, 2021
0
475
1
+614
z score
In a normally distributed set of scores, the mean is 74 and the standard deviation is 1.5. What is the probability that a randomly selected score is between 72.5 and 77? Answer should be written as a percent. Do not round.
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xxJenny1213xx
Mar 19, 2021
0
389
1
Pythagorean theorem
Find the value of x to the nearest tenth.
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Guest
Mar 19, 2021
0
514
2
+505
Help pls
Find the constant k so that for all positive real numbers x and y with
I'm unsure how to start this off. I tried turning it into exponential form but it made no sense. I think I might have to try the Change of Base formula.
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MobiusLoops
Mar 19, 2021
0
419
1
math
enny has $75 to buy tickets to the state fair for her family. She will buy an equal number of child and adult tickets.
TicketCost ($)
Child5.00
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Guest
Mar 19, 2021
0
578
1
+84
Slove for X and Y Please.
y=3x+10
3x+2y=16
(Type a ordered pair)
hectictar
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dadevb124
Mar 19, 2021
0
487
2
+614
probability question
At a Halloween party, you play a dart game where you win teeth based on where your dart throw lands. The probability of hitting the outer ring is 8% and you win 5 teeth. The probability of hitting the yellow ring is 26% and you win 6 teeth. The probability
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xxJenny1213xx
Mar 19, 2021
0
259
1
volume
Find the volume of the composite solid.
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Guest
Mar 19, 2021
+1
415
1
+46
A person rides a bike against the wind at 8mph
A person rides a bike against the wind at 8mph when he goes back the wind helps him. he traveld 4 miles total 2 to the shop and 2 back. If the round trip was 20 minutes longwhat is thomas's speed on the bike without the wind.
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indianguy
Mar 19, 2021
0
397
1
easy
Solve 10≥s2.5
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Guest
Mar 19, 2021
0
235
0
easy
find the divisor 414.17divided by 41.417
Guest
Mar 19, 2021
0
411
0
+4
Need Urgent help with this question!
A baseball is hit with an initial vertical velocity of 121 feet per second and struck 1 foot above the ground. Let h = be the height in feet and t = time in seconds.
Equation: h(t)= -16t^2+121t+1
a. How high is the ball after
read more ..
MikeysRoom
Mar 19, 2021
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