Barry M.

01/19/20

Density/ Scientific Notation

What is the density, in kilograms per cubic centimeter, of gold and sodium together?ELEMENT DENSITY( kilograms per cubic centimeter) gold. 1.932 x 10^-2sodium. 9.71 x 10^-4

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Algebra 2

01/18/20

System of equations

(X-3)^2+(y+2)=162x+2y=10

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Chemistry

01/17/20

Balancing Nuclear Equations Worksheet

How do you write Radon-220 undergoes alpha deca?write an equation showing protactinium-229 going through alpha decay forming actinium-225. write a beta decay equation for uranium-238.

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Chemistry

01/17/20

The combustion of propane in oxygen is described by the following equation: C3H8 + 5O2 -> 3CO2 + 4H2OIf the reaction of 5g propane proceeds in 75% yieldb. What volume of CO2 is produced?I worked... more

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Algebra 1 Age Problem

01/17/20

Joe is twice as old as Tom. Six years ago, joe was three times as old as Tom was then. What is joes current age?

If possible please show steps to answer.

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Algebra 2 Trigonometry

01/17/20

There is a clock in the center of town that has a minute hand 11 feet long how far does the tip of the minute hand travel from 1 PM to 1:30 PM

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Algebra 1

01/17/20

Two times the sum of three consecutive odd integers is 30. Find the largest integer algebarically

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Algebra 2

01/16/20

Inequalities and vertex form

Write these in vertex formy is less than -.5x^2 - x + 1.5

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Algebra 2 Slope Intercept Form

01/16/20

What is -3(x+6)

I need to know how to write it in the simplest form.

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This Is Hard Please Help

01/16/20

Practice 6-4 this is 7th grade math

How many boxes (x), of envelopes can you buy with $12 if one box costs $3?

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Algebra 2

01/15/20

Finding equation with line passing through 3 points

Passing through 0.-16 and -2,0 and -3,2. Please show all steps.

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Algebra 1

01/15/20

what is m<1+m<2=m<1+m<3

i need help with this because it is hard for me

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Chemistry

01/15/20

What is the least amount of 20 percent H2SO4 solution in grams to dissolve 11 grams of FeS?

Please add some details as I'm still learning.

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Chemistry

01/15/20

What is 4.56 x 103 times 3.1 x 106 in correct scientific notation and proper significant figures?

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Chemistry

01/15/20

Name the following compounds: BaBr2 SF

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Algebra 2

01/14/20

Scatter plots/quadratic/linear equations

Write a quadratic function modeling the height f a projectile T sec after launch and state the r^2 value. Then use the model to predict the following:a. Projectiles height at 2 secb. Projectiles... more

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Algebra 2 Simplifying Radical

01/14/20

Simplifying Radicals

6 . 3+√7

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Sat Math

01/14/20

The sum of both digits, of either of two-digit numbers, in whatever order thw digits are written, is 9. The square of either of the digits of either number, minus the product of both digits,

The sum of both digits, of either of two-digit numbers, in whatever order thw digits are written, is 9. The square of either of the digits of either number, minus the product of both digits, plus... more

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Chemistry Thermodynamics

01/13/20

Change in internal energy calculation

What is the change in internal energy, ΔE, when 1.57 moles of a diatomic ideal gas is heated from 89°C to 306°C? How would the value be different if the ideal gas was monatomic?

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Algebra 2

01/13/20

Algebra 2 and have 2 questions

How can the series [ -6,+-3+0+3+6+9+12+15] be denoted using sigma notation?Given the ordered pairs (1,5), (2,25), (3,125), what is an explicit (geometric) rule for this sequence?

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Chemistry

01/13/20