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All Questions
^{+0}
215339 Questions
+1
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+57
hiiiii
does the star mean multiply or does it mean something else??
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waterlili
Aug 4, 2022
0
12
1
help geometry
Point D is on side AC of triangel ABC such that angle ADB = angle ABD and angle ABC - angle ACB = 37 degrees. Find angle DBC in degrees.
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Guest
Aug 4, 2022
0
14
1
algebra
Mira’s parents planted an apple tree when she was born. In the year Mira turned 8 years old, the tree started bearing fruit. That year, there were 48 apples. The number of apples increased by 60% every year after that. How many apples grew on the tree in
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Guest
Aug 4, 2022
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11
1
help algebra
A year ago, Karen grew some popcorn. She removed kernels from the cob and put them in containers. She had 14 containers each holding 6 pounds 9 1/8 ounces and one container holding 4 pounds 7 3/8 ounces. In all, she had x pounds y ounces of popcorn
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Guest
Aug 4, 2022
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15
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Send help Algrebra
After weighing all but one of her children, Noni realized that if her last child weighed 94pounds, her children’s average weight would be 85 pounds. If, however, her last child had weighed 58 pounds, then this average would be only 81 pounds. How many children
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Guest
Aug 4, 2022
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11
1
Trapezoid
Find the length of the missing side of the trapezoid below.
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Guest
Aug 4, 2022
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10
1
coordinates
The points (a,1), (9,0), and (-3,4) lie on a straight line. Find a.
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Guest
Aug 4, 2022
+1
15
1
+204
functions
The function $f$ satisfies \[f(\sqrt{x + 1}) = \frac{1}{x}\]for all $x \ge -1,$ $x\neq 0.$ Find $f(2)$.
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Blizzardshine
Aug 4, 2022
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13
0
functions
Let
f(x) = -x + 3 if x <= 0
f(x) = 15x + 2 + x^2 if x > 0
How many solutions does the equation f(f(x)) = 4 have?
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Guest
Aug 4, 2022
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14
1
geometry
In triangle PQR, angle P = angle Q + angle R + 30 degrees. Of all three exterior angles of triangle PQR, what is the least exterior angle, in degrees?
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Guest
Aug 4, 2022
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13
1
system
For a certain value of k, the system
x + y + 3z = 10
-4x - 3y + 5z = 7
kx + z = 3
read more ..
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Guest
Aug 4, 2022
0
12
1
quadratic
Find the sum of all possible positive integer values of b such that the quadratic equation 2x^2 + 15x + b = 0 has rational roots.
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Guest
Aug 4, 2022
0
14
1
range
Compute the range of the function f(x) = sqrt(1/x^2).
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Guest
Aug 4, 2022
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16
2
counting
How many ways are there to put 5 balls in 2 boxes if the balls are distinguishable and the boxes are indistinguishable?
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Guest
Aug 4, 2022
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12
1
quadratic
Find all values of x such that 6 = 35/x - 49/x^2 + 5/x^2. If you find more than one value, then list your solutions in increasing order, separated by commas.
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Guest
Aug 4, 2022
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21
2
Help!
What is the product of all positive integers
that satisfy the inequalities
and
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Guest
Aug 4, 2022
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26
1
+130
Advanced Inequalities
The number and its radical conjugate have a sum of and a product of . Find a+b.
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sherwyo
Aug 4, 2022
0
19
3
help please
Each of two isosceles triangles has a base whose length is 2x. The altitude to the base ofone triangle, and a leg of the other triangle, each has lengthy. Suppose thatx:y= 5 : 8.Find the ratio of the area of the smaller triangle to the area of the larger
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Guest
Aug 4, 2022
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16
1
Algebra
There are numbers A and B for which
A/(x - 1) + B/(x + 1) = (2x + 1)/(x^2 - 1)
for every number $x \neq \pm 1$. Find B.
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Guest
Aug 4, 2022
Aug 3, 2022
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25
2
Minimum value
Find the minimum value of
x^2 + 2xy + y^2 + x + y + 1
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Guest
Aug 3, 2022
0
32
2
Unit 8 Financial literacy question Please help
Jordon and Mike are both planning on attending university in Calgary. Jordon's prents rent him a one-bedroom apartment for $750 per month. Mike's parents bought a 3-bedroom house for $285000 that required a down payment of 10% and offered a mortgage amorized
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Guest
Aug 3, 2022
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24
3
coordinates
The points (0,4) and (1,8) lie on a circle whose center is on the x-axis. What is the radius of the circle?
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Guest
Aug 3, 2022
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18
0
quadratics and real roots
What is the largest number c such that 2x^2 + 5x + c = -x^2 + 12x + 18 has at least one real solution? Express your answer as a common fraction.
Guest
Aug 3, 2022
0
20
1
+204
Any tricks for this?
If $f(x) = 8x^3 - 6x^2 + 12x - 0$, what is the value of $f\left(\dfrac{3}{4}\right)$?
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Blizzardshine
Aug 3, 2022
0
24
1
+57
hi :)
The sides of triangle PQR are tangent to a circle with center C as shown. Given that angle PQR=65 deg and angle QRC=30 deg, find angle QPR, in degrees.
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waterlili
Aug 3, 2022
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