All Questions ⁺⁰237722 Questions

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642

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Help please

Find the vertex of the graph of the equation $x -y^2 + 6y =8$.

Guest Feb 16, 2018

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817

1

Help

The grid lines in the graph below are one unit apart. The red parabola shown is the graph of the equation $y = ax^2 + bx + c.$ Find $a+b+c$.
https://latex.artofproblemsolving.com/c/e/2/ce264d13e5e7038f82ba3bae952d91fdf182b0ff.png read more ..

Guest Feb 16, 2018

+1

886

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+595

1. Over what interval is the growth rate of the function increasing?

1. Over what interval is the growth rate of the function increasing?

read more ..

jbouyer Feb 16, 2018

+1

1205

6

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I also need help on questions 3,7 and 8 too. These are the last questions. Thank you :)

I also need help on questions 3,7 and 8 too. These are the last questions. Thank you :)

3) How many molecules are in 23 moles of Sodium?
read more ..

off-topic

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sii1lver Feb 16, 2018

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1146

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Chemistry conversions

Thank you to the person who asnwered my last question!! I also need help on these, can you sow the work as well so I can look it over and try to understand. Thank you :)

1)How many moles are in 20.2 g HCl?
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sii1lver Feb 16, 2018

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922

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help! please!

A bag contains 4 blue, 5 green and 3 red marbles. How many green marbles must be added to the bag so that 75 percent of the marbles are green?

tertre Feb 16, 2018

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824

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How many moles are in 8.022 x 10 26 molecules of NaCl?

How many moles are in 8.022 x 1026 molecules of NaCl?

:) Thanks!

off-topic

sii1lver Feb 16, 2018

+3

1023

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+483

a little science and big brain required

if a sample of radioactive material of 355g and a half-life of 3.75years. The remaining sample is 22.1875g how many half-lives have the material gone through and how old is the material?

DarkCalculis Feb 16, 2018

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Help.

NotSoSmart Feb 16, 2018

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1939

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Mya has an exercise ball in the shape of the sphere shown below. She wants to increase the weight of the ball by filling it with water.

Mya has an exercise ball in the shape of the sphere shown below. She wants to increase the weight of the ball by filling it with water.

Which is closest to the amount of water, in cubic inches, that Mya's exercise ball will read more ..

Guest Feb 16, 2018

0

680

1

+4116

Help.

NotSoSmart Feb 16, 2018

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687

1

+4116

Help.

NotSoSmart Feb 16, 2018

0

861

2

+4116

Help.

NotSoSmart Feb 16, 2018

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718

1

+4116

Help.

NotSoSmart Feb 16, 2018

+3

1228

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+483

help me is confused

If Logx (1 / 8) = - 3 / 2, then x is equal to
A. - 4
B. 4
C. 1 / 4
D. 10

off-topic

DarkCalculis Feb 16, 2018

+1

821

4

+1495

Help Me please

Help Me please

Exercise: Perform the operation indicated
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ManuelBautista2019 Feb 16, 2018

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740

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+1495

Help me Please

Help me Please

Exercises: Perform the Operation indicated
read more ..

ManuelBautista2019 Feb 16, 2018

+6

1240

3

+149

help

Drag and drop the numbers into the table to complete the table of values for the equation
y = 4x + 7.
x -2 -1 0 1 2 y

BabyChimChim Feb 16, 2018

+5

985

2

+483

good morning

good morning/afternoon/night everyone I hope you are having a wonderful day/night and if your not I'm here for you

off-topic

DarkCalculis Feb 16, 2018

+2

764

1

help please

Guest Feb 16, 2018

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513

1

Math question

Nicole had $7,424.24 in a savings account with simple interest. She had opened the account with $7,004 exactly 3 years earlier. What was the interest rate?

Guest Feb 16, 2018

+8

1814

3

+11912

A Shoutout post for CPhill! (and all those helping mathematicians)

CPhill, im really grateful to you.

You help this forum so much , devoting in your time to answer all of our questions , listen to our queries and help accordingly. It's so sweet and kind of you to do that. Im also read more ..

rosala Feb 16, 2018

+4

2170

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+11912

Permutations and Combinations!

1.A telegraph has x arms and each arm is capable of (x-1) distinct positions , including the position of rest. The total no. of signals that can be made is?

2. How many natural numbers are there fro 1 to 1000 which have none read more ..

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rosala Feb 16, 2018

+1

835

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+31

Please help me!

please help me find out the answer to this!

4x2-31x=8
aolve for x. read more ..

hectictar ●●

FieryJade122 Feb 16, 2018

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