All Questions ⁺⁰230410 Questions

0

191

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.

Guest Aug 4, 2022

0

193

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 read more ..

Guest Aug 4, 2022

0

216

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 read more ..

Guest Aug 4, 2022

0

208

1

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 read more ..

Guest Aug 4, 2022

0

198

1

Trapezoid

Find the length of the missing side of the trapezoid below.

Guest Aug 4, 2022

0

187

1

coordinates

The points (a,1), (9,0), and (-3,4) lie on a straight line. Find a.

Guest Aug 4, 2022

+1

225

1

+248

functions

The function $f$ satisfies \[f(\sqrt{x + 1}) = \frac{1}{x}\]for all $x \ge -1,$ $x\neq 0.$ Find $f(2)$.

Blizzardshine Aug 4, 2022

0

136

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? read more ..

Guest Aug 4, 2022

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201

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?

Guest Aug 4, 2022

0

197

1

system

For a certain value of k, the system
x + y + 3z = 10
-4x - 3y + 5z = 7
kx + z = 3 read more ..

Guest Aug 4, 2022

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201

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.

Guest Aug 4, 2022

0

207

1

range

Compute the range of the function f(x) = sqrt(1/x^2).

Guest Aug 4, 2022

0

196

2

counting

How many ways are there to put 5 balls in 2 boxes if the balls are distinguishable and the boxes are indistinguishable?

Guest Aug 4, 2022

0

175

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.

Guest Aug 4, 2022

0

262

2

Help!

What is the product of all positive integers that satisfy the inequalities and read more ..

Guest Aug 4, 2022

0

227

1

+140

Advanced Inequalities

The number and its radical conjugate have a sum of and a product of . Find a+b.

sherwyo Aug 4, 2022

0

179

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 read more ..

Guest Aug 4, 2022

0

169

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.

Guest Aug 4, 2022

Aug 3, 2022

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191

2

Minimum value

Find the minimum value of

x^2 + 2xy + y^2 + x + y + 1
read more ..

Guest Aug 3, 2022

0

235

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 read more ..

Guest Aug 3, 2022

0

211

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?

Guest Aug 3, 2022

0

138

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

211

1

+248

Any tricks for this?

If $f(x) = 8x^3 - 6x^2 + 12x - 0$, what is the value of $f\left(\dfrac{3}{4}\right)$?

Blizzardshine Aug 3, 2022

+5

260

1

+179

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.

waterlili Aug 3, 2022

0

203

1

Graphing question

A and B are constants such that the graphs of xy = B and y = Ax^2 + B intersect at the point (2,8). Write the ordered pair (A,B).

Guest Aug 3, 2022

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