All Questions

911

+211

pecents

If the school's total attendance is 524 and there are 91 present in math class, what percent of the total attendance is the attendance in the math class?

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GirlsRbetteR Jul 26, 2017

1047

+211

percent

On Team C, 82.5% of the football players weigh more than 200 pounds. If 40 men are on the team, how many weigh more than 200 pounds?

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GirlsRbetteR Jul 26, 2017

963

+16

Using triangle inequity prove |x+y|>=||x|-|y||

I tried by starting with (x+y)^2+(x-y)^2>=(x-y)^2, which brought me to 2x^2+2y^2>= (|x|-|y|)^2 , have no idea what else to try. Thanks!

heureka ●●

AspiringActuary Jul 26, 2017

Jul 25, 2017

1240

pyramid

find the volume

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Guest Jul 25, 2017

1850

2(L x W) + 2(W x H) + 2(L x H).

I have to put a football and a basketball into a rectangular box without deflating them and I have to use the formula 2(L x W) + 2(W x H) + 2(L x H).please help im lost
the sizes are this basketball 9.5 all around
football is 11.5 long read more ..

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Guest Jul 25, 2017

1291

+51

MATH HELP

Part A: Explain why x = 6 makes 4x − 5 ≤ 19 true but not 4x − 5 < 19. (5 points)
Part B: What value from the set {4, 5, 6, 7, 8} makes the equation 4x + 3 = 23 true? Show your work

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Sunrisesk8r Jul 25, 2017

752

set notation: what set symbol to use?

you know how you use set symbols, like N for natural numbers and Z for integers? when is it appropiate to use these symbols? like they're all real numbers right, so we usually represent them with R, but i'm just curious as to why we can't just use, e.g read more ..

Guest Jul 25, 2017

714

Identify the slopes and y-intercepts of the linear equations below (show work)

Identify the slopes and y-intercepts of the linear equations below:
a) y=-2x-8
b) y=3
c) x=9 read more ..

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Guest Jul 25, 2017

1345

Write a compound inequality to represent (show work)

Write a compound inequality to represent:
a) All numbers greater than -1 and less than or equal to 39 then display the inequality on a number line.
b) The flowers in the garden are 6 inches or taller or shorter than 3 inches. Display read more ..

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Guest Jul 25, 2017

721

+752

Help!

Let f(x) = x - 3 and q(x) = bx +1. If f(q(1)) = -3, what is b?

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MIRB16 Jul 25, 2017

908

IDK

14/5 to improper fraction

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Guest Jul 25, 2017

3718

+63

In triangle ABC, AB=9, BC=12, AC=15, and CD is the angle bisector. Find the length of CD

In triangle ABC, AB=9, BC=12, AC=15, and CD is the angle bisector. Find the length of CD.

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bbelt711 Jul 25, 2017

2569

+618

Bisectors

In triangle $ABC$, . The incircle of triangle $ABC$ touches sides $BC$, $AC$, and $AB$ at $D$, $E$, and $F$, respectively. Find $\angle EDF$, in degrees.

Link to diagram:
read more ..

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michaelcai Jul 25, 2017

917

Another differentiation question. Discovery.

This is the topic of: Derivatives of Composite functions
This is suppose to help me discover a rule but I just got confused.
Here goes:
Suppose y = u2 read more ..

Alan ●

Guest Jul 25, 2017

741

answer

when dividing by x-1 x+2 x-2 x-3 the polynomial p(x)=x^4+ax^3+bx^2+c+d remainder 0

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Guest Jul 25, 2017

863

Need help with differentiation, It's simple.

Not for me though.

f(x) = (3x-6)/x

heureka ●●●●

Guest Jul 25, 2017

922

Find dy/dx

Yx+XX+Xy= ab
Find dy/dx...?

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Guest Jul 25, 2017

1450

+9519

Need some help with differential equations.

Solve:

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MaxWong Jul 25, 2017

885

Simple rules of differentiation

Why is this true?
Differentiation of xn

f(x) = xn read more ..

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Guest Jul 25, 2017

481

help

just kidding. you guys are awesome! keep up the good work

Guest Jul 25, 2017

1039

1 + 5 *10

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Guest Jul 25, 2017

853

Just want too make sure I am right

i*i= -1 right?

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Guest Jul 25, 2017

Jul 24, 2017

2229

Arithmetic Sequences

If the eight term of an arithmetic sequence with first term -1 is 20, then what is the common difference?

The first and last terms of an arithmetic sequence with thirteen terms are -7 and -115, respectively. Find read more ..

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Guest Jul 24, 2017

All Questions ⁺⁰230451 Questions

pecents

percent

Using triangle inequity prove |x+y|>=||x|-|y||

pyramid

2(L x W) + 2(W x H) + 2(L x H).

MATH HELP

set notation: what set symbol to use?

Identify the slopes and y-intercepts of the linear equations below (show work)

Write a compound inequality to represent (show work)

Help!

IDK

In triangle ABC, AB=9, BC=12, AC=15, and CD is the angle bisector. Find the length of CD

Bisectors

Another differentiation question. Discovery.

answer

Need help with differentiation, It's simple.

Find dy/dx

Need some help with differential equations.

Simple rules of differentiation

help

1 + 5 *10

Just want too make sure I am right

Arithmetic Sequences

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