# Posts by jose

Total # Posts: 505

**Chemsitry **

A student reacts 0.506 grams of aluminum with excess KOH and H2O according to reaction one from the lab manual. 2Al + 2KOH +6H2O ---> 2K[Al(OH)4]+3H2 Enter your answers in numerical format. How many moles of aluminum was reacted? How many moles of K[Al(OH)4...

**Chem 1C**

the hydrolysis of sucrose is a part of the digestive process. to investigate how strongly the rate depends on our body temperature, calculate the rate constant for they hydrolysis of sucrose at 35C given that k=1.0 mL/(mol*s) at 37C and that the Ea=108 kJ/mol

**Statistics**

Suppose that grade point averages of undergraduate students at one university have a bell-shaped distribution with a mean of 2.62 and a standard deviation of 0.43. Using the empirical rule, what percentage of the students have grade point averages that are at least 3.48? ...

**Math**

What is the work for the problem 61,125 divided by125

**math seriously help me **

Sally graphs the geometric sequence an = 2(3)n - 1 on a coordinate plane where she plots an on the y-axis and n on the x-axis. This graph is the same as the graph of which type of function? A) cubic B) linear <my answer C) quadratic D) exponential

**math**

Sally graphs the geometric sequence an = 2(3)n - 1 on a coordinate plane where she plots an on the y-axis and n on the x-axis. This graph is the same as the graph of which type of function? A) cubic B) linear <my answer C) quadratic D) exponential

**Psychology**

Psychology

**Finance**

I don know

**algebra**

find the periodic payments necessary to accumulate the amount given in a sinking fund. Assume end of period deposits and compounding at the same intervals as deposits. $70,000 in a fund 7% per year, monthly payments for 5 years Thank you your time is appreciated !

**Stoichiometry **

C3H5+5O2-3CO2+4H2O

**Geometry**

At a campground, a rectangular fire pit is 5 feet by 4 feet. What is the area of the largest circular fire that can be made in this fire pit? Use 3.14 for ?. Round to the nearest square inch.

**Math**

On friday,a cold front came through the city at 8am that dropped the outside temperature at an average rate of 2 degrees every half hour. Which integer represents the change in temperature from 8am to 11am

**math**

So it would be 5s+15s+5s=575?

**math**

Two cars leave Kansas City at the same time. One car is moving east and the other west. After 5 hours, the cars are 575 miles apart. One car is traveling 15 miles per hour faster than the other. Let S = the speed of the slower car and F = the speed of the faster car. If one ...

**math-circles**

The area of two circles are in a ratio of 4:9. If both radii are integers, and r(1) - r(2) = 2, what is the radius of the larger circle?

**math**

In pallelogram, ABCD, E is the midpoint of DC, AE intersecs BD at point O, the area of triangle DOE is 12cm^2, what is the area of triangle AOB?

**triangles**

In triangle ABC, AB = 12, AC= 9, D is a point on AC, AD = 3. E is a point on AB, so that triangle ADE is similar to ABC, what is the length of AE? (two different answers)

**math**

two concentric circle with the ratio of radii as 2:3, what is the ratio of the area? thanks

**Math.**

two concentric circle with the ratio of radii as 2:3, what is the ratio of the circumferences

**Language Arts**

Homework help is right I got a 100%

**ELA**

Thanks @Girl got all the answers got a 100%

**Math**

A marine surveyor uses a rangefinder and a compass to locate a ship and an island in the vicinity of the coast on which she stands. The rangefinder indicates that the island is 379 ft from her position and the ship is 600 ft from her position. Using the compass, she ...

**math**

how many squares are there in a 3x3 geoboard? how many rectangles?

**financial math**

Rate: 7% Payments: 360 @ $665.31 Total Interest: $139,511.60 How much will be repaid for this loan? $ 239,511.60239,502.40100,000.00 What percentage of this total is total interest? 60.256.258.2 What will be the average amount per payment for interest? $ 387.53385.51387.51

**College Algebra**

Scott, thanks man!

**College Algebra**

Find the formula for the EXPONENTIAL FUNCTION that satsifies the given conditions. f(0)=8 and f(1)=2.4 f(x)=_____

**Social studies**

What were protestants want to true friend and elation church called

**math**

Irrational Perimeter and a Rational Area of a rectangle. a can = b can = Or, if it's impossible, explain how. Help me I'm confused.

**math**

can you explain to me what you mean when you said you need "b" in the middle? thanks

**math**

The length of three line segments are a,b, and c respectively, and a=2/3b c=3/2b then a : c = ?

**math**

You are a genius! 15 is the last one.

**math**

Mistaken, I did 30 + 105 and thought it was 145 :P thanks for your help though.

**math**

That would be 145 degrees. 11 combinations in total! Thanks for your help Reiny, I appreciate it.

**math**

using two triangle rulers with angles of (30, 60, 90) and (45 , 45, 90) how many angles less than 180 degrees can be drawn?

**math**

Two angles are complementary to each other, if the ratio of the two angles is 3:2, then what is the difference of measures in degree of these two angles? please explain :(

**maths**

Find the measure of an angle with measure three times the measure of its supplement.

**math**

Find the measure of an angle with measure 8 less than the measure of its complement

**math**

The solution of x for equation a (bx - c) = d - (x + e) (a > 0 and b > 0) the answer is x = ac + d - e/ab + 1 How?

**math**

Find the experimental probability. Sheila drew single marbles from a bag, recorded the outcome, and replaced the marble. In 50 draws, Sheila drew 20 white marbles and 30 black marbles. What is the experimental probability that the next marble will be black? A.2/5 B.3/5 C.2/3 D...

**math**

45.8

**english**

In the United States, cell phones are a very popular item. What are all VERBS both "Action" and "Be."

**science**

A ball of mass 0.5 kg is released from rest at a height of 30 m. How fast is it going when it hits the ground?

**Chemistry**

How many grams of perchloric acid are dissolved into 3.86 L of water, if the pH of the solution is 4.03.

**please help**

Two point charges are fixed on the y axis: a negative point charge q1 = -34 μC at y1 = +0.19 m and a positive point charge q2 at y2 = +0.32 m. A third point charge q = +8.9 μC is fixed at the origin. The net electrostatic force exerted on the charge q by the other ...

**Health**

hahaha from behind? lmao

**volume**

336

**physics**

Argon is a monatomic gas whose atomic mass is 39.9 u. The temperature of eight grams of argon is raised by 95 K under conditions of constant pressure. Assuming that argon behaves as an ideal gas, how much heat is required?

**physics**

A mass m = 0.068 kg of benzene vapor (Lv = 3.94x105 J/kg) at its boiling point of 80.1°C is to be condensed by mixing with water at 45.0°C. What is the minimum mass of water required to condense all of the benzene vapor? Assume the mixing and condensation take place is...

**math**

How can you write an equation of two test scores 97 and 88

**math**

Given: 1 post=2 Yards Therefore, Dimensions are: Width= 4 Posts Length= 8 Posts Let p=post Width= 4p Length= 8p Since p=2yards, Width= 4(2 yards)= 8 Yards Length= 8(2 yards) 16 Yards

**Math**

Convert the fraction 4/5 to a fraction that is more flexible to work with: (1-4/5)=(5/5)-(4/5) (5/5)-(4/5)=1/5 Eating half of one fifth: Again, convert the fraction into something that is more flexible to work with. Here, the best thing to do is to make the numerator even. You...

**Math**

No my teacher didn't teach us this just gave it to us for homework

**Math**

Marisa says that reflecting a point across the x axis and then reflecting its image across the y-axis will produce the same final image as just reflecting the original point across the line y equals x is this true?

**Math**

The smallest package weighed only 1/3 more than 1/2 the weight of the heaviest package. If the two packages combined weighed 100 kilograms, how much did the smaller package weigh?

**math**

The answer is yes because the probability of the red pen is 25 percent(1/4). The percentage of the not red is 75 percent(3/4). The probability of the black pen is 75 percent(3/4). The probability of the not black is 25 percent(1/4). If you add these together you get 1, which ...

**Physics**

How much work does a 50 kg student to climb 3 meters high stairs

**Health**

Thanks yeilinn got a 100%

**physics**

As shown in the diagram, a bullet of mass 7.0 g strikes a block of wood of mass 2.1 kg. The block of wood is suspended by a string of length 2.0 m, forming a pendulum. The bullet lodges in the wood, and together they swing upward a distance of 0.40 m from the original position...

**Calculus**

I am standing on the roof of a building with a pea shooter, and I shoot a pea up into the air from a height of 80 feet. The pea reaches its maximum height 2 seconds after I shoot, then falls to the ground. Give the position of the pea as a function of time

**Statistics**

I have gotten the concept of probability but the following question has really stumped me. Help please. The probability that a tomato seed will germinate is 0.9. Estimate the probability that of 100 randomly selected seeds, at least 86, but no more than 91 of them will ...

**health**

Thanks JDog got a 100%

**math**

there are 5 pounds of apples in one bag. Make a table to show how many pounds of apples are in 6 bags

**math**

To date, Jay Ward has xumulative earnings of $ 107,600. This week he is paid $3,000. What is the total amount of Social Security tax for this week? Assume a rate of 6.2% on $110,100 for Social Security and 1.45% for Medicare.

**Finance**

Need Solution problem Nealon Manufacturing Company

**Social Studies**

thanks @skullcrusher95 got a 100%

**trig**

Find the component form of v and sketch the specified vector operations geometrically, where u = 4i − j, and w = i + 5j. v = −u + w v = ( , )

**Ela**

Don't know how to make them plural or singular possessive or plural possessive

**Ela**

Write each phrase below to make it a plural or singular possessive or plural possessive.the backpacks belonging to the girls,the covers of the bookd

**Chemistry**

Calculate the pH of each solution given the following or values: a. [H3O+] = 1 * 10-8M b. [H3O+] = 5 * 10-6M c. [OH-] = 4 * 10-2M d. [OH-] = 8 * 10-3M e. [H3O+] = 4.7 * 10-2M f. [OH-] = 3.9 * 10-6M

**chem**

Please give the complete mechanism for the acid catalyzed addition of methanol to 3 - methylbutene

**physics**

A ball is projected upward at time t = 0 s, from a point on a flat roof 10 m above the ground. The ball rises and then falls with insignificant air resistance, missing the roof, and strikes the ground. The initial velocity of the ball is Consider all quantities as positive in ...

**physic**

Between the orbits of Mars and Jupiter, several thousand small objects called asteroids move in nearly circular orbits around the Sun. Consider an asteroid that is spherically shaped with radius r and density 3000 kg/m3 . You find yourself on the surface of this asteroid and ...

**ELA Reading**

Lin is right I got a 100%

**Math**

x/(x+1) - 2/(x-1)= 1 I have been trying to solve it but I do not know the steps to solve it.

**Chemistry**

Can I know the molarity of acid rain?

**science**

In the cabin of a jetliner that cruises at 600km/h, a pillow from an overhead rack falls into your lap below since the jetliner is moving so fast, why doesn't the pillow slam into the rear of the compartment when it drops? What is the horizontal speed of the pillow ...

**Math**

144x+21x squared??

**algebra**

whats the difference between a 16 ounce brick and a carpenter?

**Math**

How to find the perimeter of a 10 step staircase

**geology**

1950 + 979 = 2929 1950 + 1843 = 3793

**ss**

Sb is dumb

**math**

Renee is a sales associate at a store. She earns $80 a week plus a 15% commission on her sales. Last week, she sold $200 worth of items. What is the total amount Renee earned for the week? How much did she earn from commission?

**math**

Two months ago, the mean daily rainfall in a local city was 9.4 cm. The mean absolute deviation was 3.5 cm. Last month, the mean daily rainfall in that city was 11.5 cm, and the mean absolute deviation was 1.6 cm. Which statement about the rainfall is true

**trig**

solve triangle ABC which have angleA=25.25,angleB=60.51 and a=3.82..find c...,find b

**biology**

So basicaly what you have to do here is look at the question real hard close your eyes thing about this, 2 girls in one cup. Then open your eyes and you will know that white and smooth is the highest experimental value. With this you can assume that the others are just ...

**math**

Suppose a 25-foot ladder is leaning against a wall making a 63 degree angle with the wall. How high up th wall is the end of the ladder?

**math**

84 inches by 54 inches how many square inches will Paige have to paint the front side of the door?

**chemistry**

220.3 lbs = 100016.2 g 500. gallons= 1892.5L 100016.2g (NH4)(NO3)X 1 MOL/80.052 g/MOL= 1249.39 MOLES. 1249.39 MOLES/ 1892.5L = 6.60X10^-1 MOL/L (NH4)(NO3)

**Chemistry**

Calculate the mass of 5.35 mol of iodine

**math**

They're 32 more apples than oranges at a fruitstand. Howany apples and oranges could there be?

**Pre-Calculus**

Describe the function resulting from reflecting f(x)=x^3+2x^2-x+5 about the y-axis and then shifting to the left by 4. Is this the same as performing the operations in the reverse order

**algebra**

The perimeter of a rectangular piece of plastic is 22 millimeters. The area is 30 square millimeters. What are the dimensions of the piece of plastic?

**Construction Math**

What math do I need to do

**chemistry**

chemical reactions type?

**English 10**

noun clause

**physics**

In a house the temperature at the surface of a window is 22.4 °C. The temperature outside at the window surface is 2.66 °C. Heat is lost through the window via conduction, and the heat lost per second has a certain value. The temperature outside begins to fall, while ...

**chemistry**

69.56e5a5t5

**Intro to Accounting**

Jimenez Enterprises issued 8%, 9-year, $2,486,400 par value bonds that pay interest semiannually on October 1 and April 1. The bonds are dated April 1, 2014, and are issued on that date. The discount rate of interest for such bonds on April 1, 2014, is 8%. What cash proceeds ...

**Calculus**

Your firm offers to deliver 250 tables to a dealer, at $160 per table, and to reduce the price per table on the entire order by 50 cents for each additional table over 250. Find the dollar total involved in the largest possible transaction between the manufacturer and the ...

**global studies**

Nobles