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161

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Al desarrollar el examen parcial de Matemática los 45 estudiantes del aula B10 de la UCAL, salieron desaprobados 9 de ellos. ¿Qué porcentaje

Al desarrollar el examen parcial de Matemática los 45 estudiantes del aula B10 de la UCAL, salieron desaprobados 9 de ellos. ¿Qué porcentaje de estudiantes aprobados hay en esta aula?

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Guest Apr 28, 2023

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171

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Help with graphing question

I graphed it, and it didn't help
What is the smallest distance between the origin and a point on the graph of y = 1/2*(x^2 - 18)?

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Guest Apr 28, 2023

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131

2

Please help

what is $(-1)^{-3} \cdot 1^3 + (-3)^{-5} \cdot 3^5 + (-5)^{-7} \cdot 5^7$.

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Guest Apr 28, 2023

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147

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Geometry

1. Find the area of triangle ABC if AB = 6, BC = 8, and angle ABC = 90 degrees.
2. If angle ABC = 135 degrees, and angle ACB = 30 degrees, what is angle BAC?

Guest Apr 28, 2023

0

108

1

+1348

Quadratic equations

Find all values of x such that
2x/(x + 2) = -6/(x + 4) + 8.
If you find more than one value, then list your solutions, separated by commas.

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sandwich Apr 28, 2023

-1

170

2

+1348

Quadratic equations

Find all values of x such that 3x^2 + 14x + 8 = x^2 + 26x + 10. If you find more than one value, then list your solutions, separated by commas.

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sandwich Apr 28, 2023

+1

145

2

+56

Parallelogram problem with trigonometry

In a parallelogram ABCD, AB = 54, BC = 78, AC2 — BD2 = 8,168. Find the following.
- the angles ABCD
- the diagonals AC and BD
- the angles between the diagonals AC and BD

Thank you in advance. read more ..

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somebodyIUsedToKnow Apr 28, 2023

-1

151

1

+52

AAAAA

ummmmm

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sussybaka Apr 27, 2023

-1

156

2

+52

Functions that confuse me

This confuses me

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sussybaka Apr 27, 2023

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127

2

+52

Pennywise functions (piecewise func)

Function h is defined as follows:
Find h(h( ))

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sussybaka Apr 27, 2023

0

157

2

+6

Exponential Functions. Need help!!!

The graph of f(x) = a * b^x passes through (2,54) and (5,16). What is the value of b? Any help is appreciated!

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ImNotTheBestAtMath Apr 27, 2023

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132

0

Plz help me

Determine the number of ways of choosing three points from the grid below, so that they form an isosceles right triangle.

Guest Apr 27, 2023

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146

0

Equation

150 x 1.77
N= _____
750 x 0.7 x 0.6

Guest Apr 27, 2023

-1

165

1

+35

Help PLSSSS

Right triangle XYZ has legs of length XY = 12 and YZ = 6. Point D is chosen at random within the triangle XYZ. What is the probability that the area of triangle XYD is at most 24?

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OOooooooOOOOOoOO Apr 27, 2023

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92

1

pls help

An element with mass 570 grams decays by 26.9% per minute. How much of the element is remaining after 14 minutes, to the nearest 10th of a gram?

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Guest Apr 27, 2023

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82

3

+8

Hello,

Hello,
First, thank you to all of the mathematicians here who answer problems.
You have been an enormous help to me I am very grateful.
Second, I have a question similar to this one: https://web2.0calc.com/questions/help_54234 read more ..

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Digscaves Apr 27, 2023

-1

126

1

need help

In tetrahedron $ABCO,$ $\angle AOB = \angle AOC = \angle BOC = 90^\circ.$ A cube is inscribed in the tetrahedron so that one of its vertices is at $O,$ and the opposite vertex lies on face $ABC.$ Let $a = OA,$ $b = OB,$ and $c = OC.$ Show that the side read more ..

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Guest Apr 27, 2023

-1

163

1

pls help me

In tetrahedron $ABCO,$ $\angle AOB = \angle AOC = \angle BOC = 90^\circ.$ A cube is inscribed in the tetrahedron so that one of its vertices is at $O,$ and the opposite vertex lies on face $ABC.$ Let $a = OA,$ $b = OB,$ and $c = OC.$ Show that the side read more ..

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Guest Apr 27, 2023

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140

1

Counting problem

Try this counting problem, its really interesting!
When two standard 6-sided dice are rolled, there are 36 possible outcomes for the sum of the two rolls: one sum of 2, two sums of 3, and so on, up to one sum of 12.
Find read more ..

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Guest Apr 27, 2023

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157

1

help help

Help I don't get this
In the diagram below, PQRS is a parallelogram with a perimeter of 26 and an area of 28. What is the perimeter of rectangle OSTQ? Include an explanation of how you solved the problem.

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Guest Apr 27, 2023

0

146

1

+50

Cube Roots In The Denominators Of Fractions

How can I find the sum of

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RonnieChen Apr 27, 2023

-1

129

0

Plz help

I need help with altitudes
Triangle ABC has altitudes AD, BE, and CF. If AD = 12, BE = 18, and CF is a positive integer, then find the largest possible value of CF.

Guest Apr 27, 2023

-1

148

0

help plz

I need help with geometry
In square ABCD, P is on BC such that BP = and PC = , and Q is on CD such that BQ = and QC = . Find sin angle PAQ.

Guest Apr 27, 2023

-1

140

0

help me now

I need help with this problem:
Let G be the centroid of triangle ABC. If triangle ABG is an equilateral triangle with a side length of 2, then find the area of triangle ABC.

Guest Apr 27, 2023

0

99

3

4x-3+5=2x+7-8x what is the solution for x in the equation?

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Guest Apr 27, 2023

All Questions ⁺⁰237779 Questions

Al desarrollar el examen parcial de Matemática los 45 estudiantes del aula B10 de la UCAL, salieron desaprobados 9 de ellos. ¿Qué porcentaje

Help with graphing question

Please help

Geometry

Quadratic equations

Quadratic equations

Parallelogram problem with trigonometry

AAAAA

Functions that confuse me

Pennywise functions (piecewise func)

Exponential Functions. Need help!!!

Plz help me

Equation

Help PLSSSS

pls help

Hello,

need help

pls help me

Counting problem

help help

Cube Roots In The Denominators Of Fractions

Plz help

help plz

help me now

4x-3+5=2x+7-8x what is the solution for x in the equation?

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