All Questions ⁺⁰231390 Questions

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109

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help plz

Fill in the blanks to make the equation true.

xy xy^2 xy^3 x^2 y x^3 y x^2 y^2 x^2 y^3 x^3 y^2
read more ..

Guest Nov 19, 2022

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107

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plz help

Consider the two expressions (6x^3 + 9x^2 + 4x + 7 - 17x^2 - 8x + 8)/(2x + 3 - 7x - 11) and 4x^2 - 7 + 1/(2x + 3 - 7x - 11)
a) Show that the two expressions represent equal numbers when x = 10
b) Explain why these two expressions do not represent read more ..

Guest Nov 19, 2022

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136

1

Help please ASAP

This chart shows the number of each type of organism collected by a team of entomologists. Insects always have six legs and worms always have zero read more ..

Guest Nov 19, 2022

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128

1

Counting

In a row of five squares, each square is to be colored either red, yellow, or blue, so that no two consecutive squares have the same color, and at lest three of the squares are red. How many ways are there to color the five squares?

Guest Nov 19, 2022

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104

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Geometric series

For a real number r, let s(r) denote the set of real numbers that can be expressed in the form
a1 r + a2 r^2 + a3 r^3 + ...
with an infinite number of terms, where ai in {0,1}
(a) Show that 1/2 an element in S(1/4)
(b) Show that 1/5 read more ..

Guest Nov 19, 2022

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132

1

counting problem

Find the number of positive integers that satisfy the following conditions:
* Each digit is a 1 or a 2 or a 3
* The sum of the digits is 10

Guest Nov 19, 2022

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106

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help algebra

Find all real numbers x such that (3x - 27)^3 + (27x - 3)^3 = (3x + 27x - 30).

Guest Nov 19, 2022

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417

1

Find an equation for a line passing through $(10,10)$ that is perpendicular to the line with equation $5x + 8y = -9$. Write your equation in

Find an equation for a line passing through that is perpendicular to the line with equation . Write your equation in either point-slope form or slope-intercept form.
Find an equation for a line passing through that read more ..

Guest Nov 19, 2022

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162

3

Help

What is the smallest distance between the origin and a point on the graph of y = 1/2*(x^2 - 8)?

Guest Nov 19, 2022

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90

0

Help hard algebra

I don't know how to start:

Find all solutions to the system
a + b = 14
a^3 + b^3 = 812 + a^2 + b^2

Guest Nov 19, 2022

0

132

1

Help

Guest Nov 19, 2022

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142

1

Quadrilateral

In cyclic quadrilateral PQRS, 3 angle P = 4 angle Q = 5 angle R. Find the largest angle in quadrilateral PQRS in degrees.

Guest Nov 19, 2022

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93

0

Domain

The domain of the function r(x) = 2x/(1 - x) is (-inf,1) U (1,iinf). What is the range?

Guest Nov 19, 2022

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157

3

The previous answers aren't correct

Find constants and such that
for all such that and . Give your answer as the ordered pair

Guest Nov 19, 2022

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136

1

Probability

A stick has a length of 6 units. The stick is then broken at two points, at random. What is the probability that all three resulting pieces are shorter than 4 units?

Guest Nov 19, 2022

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148

1

Quadratic

Let r and s be the roots of 3x^2+4x-12=2x^2-6x+8. Find r^2 + s^2

Guest Nov 19, 2022

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117

2

HELP

Guest Nov 19, 2022

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157

1

help counting

In how many ways can the numbers 1 through 5 be entered once each into the five boxes below so that all the given inequalities are true?

Guest Nov 19, 2022

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100

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Counting problem

Dogs in the GoodDog Obedience School win a blue ribbon for learning how to sit, a green ribbon for learning how to roll over, and a white ribbon for learning how to stay. There are 100 dogs in the school.
* 62 have blue ribbons, 65 have read more ..

Guest Nov 19, 2022

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101

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help melody

A standard six-sided die is rolled twice. What is the probability that the product of the rolls is 8?

Guest Nov 19, 2022

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136

1

need help with probability

In Ms. Q's deck of cards, every card is one of four colors (red, green, blue, and yellow), and is labeled with one of seven numbers (1, 2, 3, 4, 5, 6, and 7). Among all the cards of each color, there is exactly one card labeled with each number. The read more ..

Guest Nov 19, 2022

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131

3

help, please!! probability questions melody, cphill, alan

Suppose we have a bag with 10 slips of paper in it. Eight slips have a 3 on them and the other two have a 9 on them. How many 9's do we have to add to make the expected value equal to 6? Let DEF be an equilateral triangle with side length 3. At random, read more ..

Guest Nov 19, 2022

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98

0

plz help

Let c be a real number, and consider the system of quadratic equations
y = 6x^2 - 9x + c - x^2 - x
y = 5x^2 - 3x + x^2 + 2x

For which values of c does this system have:
(a) Exactly one real solution (x,y)
(b) More than read more ..

Guest Nov 19, 2022

0

173

2

+18

Geometry--Involves circumcenters

Let O and H be the circumcenter and orthocenter of acute triangle ABC, respectively. If angle AHC + angle AOC = 240 degrees, what is the measure of angle ABC in degrees?

I've tried splitting the triangles into isoceles triangles, read more ..

oDivis Nov 19, 2022

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104

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Counting

A certain club has 50 people, and 10 members are running for president. Each club member either votes for one of the 10 candidates, or can abstain from voting. How many different possible vote totals are there?

Guest Nov 19, 2022

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