# Posts by Grace

Total # Posts: 659

**Science (Chemistry)**

2. Perform this operation and report the answer to the correct number of significant figures: What is the mass of a cube of aluminum that is 4.0 cm on each edge? The density of aluminum is 2.7 g/cm^3. Show all calculations leading to an answer. (I think I solved this correctly...

**Science**

2. Perform this operation and report the answer to the correct number of significant figures: What is the mass of a cube of aluminum that is 4.0 cm on each edge? The density of aluminum is 2.7 g/cm3. Show all calculations leading to an answer. (I think I solved this correctly ...

**Art 7**

Yep Isabelle is right :3 Thanks!

**Math**

You're doubling the number.e.g. 20 +20 =40

**LA**

Well A. and C. are only asking about either the frog or the snail and the sentence included both of them so A. and C. are out and then B. is asking about humans which was also not included so the answer is D. I got 100% anyway.

**Math**

One side of a triangle is half the longest side. The third side is 7 less than the longest side. The perimeter is 53 feet. Find the three sides

**physics**

A block with initial velocity of 3 m/s slides 9m across a rough horizontal surface before coming to rest. What is the coefficient of kinetic friction? V^2=Vo^2+2ax 0=9+18x a=-1/2 Ffr=mukFn Sigma F=ma ma=mukFn

**language arts**

TF the answers are B A B A I listened to -Ganni and they are completely wrong !!!m The answers are : baba 100%!

**math**

sam is making a number line and wants to make a point for 3/4 on the number line. Into how many parts should he divide the number line?

**Language Arts**

I just fished the pretest and I got 100% or 13/13 BOB's answers are completely correct!! Thank you!

**math**

how is finding a fractional part of a set different than finding a fractional part of a whole?

**math**

explain how to use mental math to find 700 x 8

**math**

explain how you can find the quotient of 400/10

**math**

explain how you can find the quotient of 400:10

**math**

Kyle says there are exaxtly 4 weeks in February. Is he right? explain

**math**

Katie picked 7 times as many strawberries as Garrett. Garrett picked 6 quarts of strawberries. How many quarts did Katie pick? Which two multiplication facts can you use to help find the solution ?

**math**

explain how you could use 5x6=30 to find the product of 6x6

**math**

write a number sentence with two expressions that equal each other

**math**

write an addition problem with 3 addends in which you regroup once to solve.

**math**

write an addition story for two3-digit numbers. write the answer to your story

**math**

Write an addition problem in which, when the addends are rounded to the nearest ten, the sum is 90. Then explain how you use estimation to solve the problem.

**math**

write an addition problem with 3 addends in which you regroup once to solve

**math**

write an addition story for two 3-digit numbers. Wrote the answer to your story.

**math**

Angel says the rule for this table i Add 0. Frank says the rule is Subtract 0. Who is correct?

**math**

Jake says adding 0 does not change a number. Is he correct? Explain

**math**

tell two different ways Reba could receive her change.

**math**

Braden and Bialy each bought a kazoo for $0.89. They each paid with a $1.00 bill. Expalin two different ways to show their change.

**math**

explain how you would use a number line to round 148 to the nearest ten

**math**

23 25 27 because if you add 23+25+27= 75, then you take out 25 (which is the second consecutive number) from the sum of three consecutive number.(75-25) equals 50.

**math**

find three consecutive odd integers that their sum decrease by the second number, equals 50.

**algebra**

15y-21=3(5y-7)

**Chemistry**

How do I do the empirical formula for 37.01% carbon, 2.22% hydrogen, 18.50% nitrogen, and 42.27% oxygen? My teacher gave me the answer (C7H5N3O6), but I can never get that answer.

**Did I get this right?**

Oh okay thanks =D

**Did I get this right?**

Find Derivative F(x)= (x-2)(x^2-3x-1) And I got F'(x)= (x-2)(3x-3)+ (x^2-3x-1)(1)

**math**

50 grams

**Physcis**

What is the radius of a real or imaginary nucleus of 42X^85?

**Math**

how do you divide

**Science**

Actually I just learned about that and yes you are correct.

**Maths**

Find the 2 and 3 digit factors of 4396 using the numbers 1-9.

**M.A.T.H**

Aha,thank u

**M.A.T.H**

Wait,is it just me or did u like trick me or something????? why u add 5 anyways and 10????????? oh well....ill figure it out

**M.A.T.H**

Thank u me and my twin Gracie were having trouble thanks a lot

**M.A.T.H**

USE THE RULE TO WRITE THE FIRST 12 TERMS IS THE PATTERN. Rule: Add 10,subtract 5 First term: 11 WEAKNESS HERE

**physics**

In a certain particle, a current of 0.50 mA is carried by a 5.0MeV proton beam that has a radius of 1.5 mm. Find the density of protons in the beam.if the beam hits a target, how many protons hit the target in 1.0s.

**Math**

Two ways to write 67,000 ----place value

**literature**

Hi, I'm doing a poem for a literature book called Red Sky In the Morning by Elizabeth Laird. The theme that my teacher assigned to me is'Anna's love for Ben'. It can be through her thoughts, words, actions or what other characters say about her love towards her...

**Biology**

It's a chemical reaction.

**SECONDARY ALGEBRA**

f(x)=(120m^3)x

**SECONDARY ALGEBRA**

A rectangular field is to be fenced off with 120 m of fencing materials. the length of the field is x. express the area in square meters of the field as a function of x.

**art history**

it gave me the wrong answers :(

**Distribution and warehousing**

What are the risks of distribution of goods and materials

**chem**

40ml

**chemistry**

Calculate a value for the solubility of (NH4)2C2O4H2O in g/100 cm3 at 298 K

**science**

THANKS JACK I GOT 100%!!!!!

**math**

A number from 20 to 30 is drawn at random. Posibility of it not a 23

**math**

how much lottery revenue has been allocated to education in nc

**Math**

HELP A Certain state's lottery LOTTO, is set up so that each player pays $1 per ticket and chooses six different numbers from 1 to 49. if the six numbers chosen match the six numbers drawn each Saturday evening, the player wins the top cash prize. the order in which the ...

**math**

the sum of an integer and the next greater integer is at least 27. find the lesser integer.

**MATT/116 wk 6 Quiz**

Identify the solution(s) of the system of equations, if any. -3x - 4y =2 8y = - 6x - 4

**math**

which figure must have both parallel and perpendicular sides. 1.parallelogram 2. rectangle 3. rhombus 4. right triangles

**Chemistry**

Write the balanced chemical equation for each of the following. (Use the lowest possible coefficients. Include states-of-matter at 1 atm and 25unknown_prefixC in your answer.) (b) the reaction of magnesium metal and hydrobromic acid

**Chemistry**

Write the balanced chemical equation for each of the following. (Use the lowest possible coefficients. Include states-of-matter at 1 atm and 25unknown_prefixC in your answer.) (a) the dissociation of solid magnesium hydroxide in water

**Chemistry**

Write a balanced chemical equation that represents the self-ionization of water. (Use the lowest possible coefficients. Include states-of-matter at 1 atm and 25°C in your answer.)

**Chemistry**

How many milliliters of 0.326 M HCl would be required to titrate 5.48 g KOH?

**Math**

GB=7*9*12=756 cu. in. LB=10*10*15=1500 cu in. 1500-156=744 cu in. Hope this helps everyone :)

**Chemistry**

What are the molality and mole fraction of solute in a 32.3 percent by mass aqueous solution of methanol (CH3OH)? molality = ?m mole fraction =

**science**

Besides if your not cheating then why are you on this site..?

**science**

Looking for only the answer is cheating, seeking for help is seeking for help, (If) they are cheating, its their choice, and you must not be very mature if your going to tell on them.

**chemistry**

In the laboratory a student finds that it takes 20.7 Joules to increase the temperature of 11.0 grams of solid platinum from 20.5 to 35.8 degrees Celsius. What is the specific heat of platinum she has measured.

**science**

I got 100% too! Thanks you!

**Chemistry**

Possible Sources of error in a reaction or sodium bicarbonate and acetic acid. Also known as baking soda and vinegar.

**Chemistry**

When copper(II) oxide is heated in the presence of hydrogen gas, elemental copper and water are produced. What mass of copper can be obtained if 34.0 g copper(II) oxide is used?

**Chemistry**

In 1901, Thomas Edison invented the nickel-iron battery. The follwing reaction takes place in the battery. Fe(s) + 2 NiO(OH)(s) + 2 H2O(l) Fe(OH)2(s) + 2 Ni(OH)2(aq) How many mole of Fe(OH)2, is produced when 3.70 mol Fe and 6.95 mol NiO(OH) react?

**SCIENCE HELP ASAP! :)**

I took the quiz- I'm from connections- but the answers are 1.C 2.B 3.C 4.A 5.C 6.A 7.B 8.D 9.A 10.A Welcome :)

**chemistry**

a 2.52-g sample of a compound containing only carbon, hydrogen, nitrogen, oxygen, and sulfur was burned in excess O to yield 4.23 g of CO2 and 1.01 g of H2O as the only carbon and hydrogen containing products respectively. Another sample of the same compound, of mass 4.14 g, ...

**math**

In the basketball game, Sarah made three times as many 2-point shots as 3-point shots. She made 8 shots in all. How many 2-point shots did she make?

**SCIENCE --- CHECK MY WORK PLS**

Got em! Thank youuu!

**Science**

Thank youuuu :D

**Math #rd grade**

Thank you! It was worded so weird I didn't know what they wanted. : )

**Math #rd grade**

Bryan has 3 nickels, 3 dimes, and 2 quarters. What fraction of the coins is either a dime or a quarter? There is a space for only 1 fraction answer.

**8th Grade Earth Science Help?**

What was the answer?

**Spelling**

What is the antonym of brandishing? a) furbishing b) concealing c) defacing d) galvanizing

**Math help ms sue.**

I wouldn't trust salted caramel..

**History**

A group of Nacogdoches.

**us history**

How did immigrants regard public education? a. as an aid to assimilation b. as a threat to cultural heritage c. as a path to advancement d. all of the above

**English**

I have the sentence: Kyle seems calm despite his situation. Kyle is the subject, seems is the being verb, calm is a subject complement adjective that describes Kyle. My question is, is "...despite his situation" an adverb phrase? Is it describing calm or seems? Thanks,

**math**

In a class of 40 students, 27 like math and 25 like Filipino. At most how many students do not like at least one of these subjects?

**chemistry**

a tuning fork produces a sound of musical note middle C. It moves back and forth 256 time each second. What is the frequency of the tuning fork?

**grammar**

can you explain the predicate and complete predicate in a sentence

**Geography**

Why do the trees drop their leaves in the fall?

**7th Grade**

What we're learning? mostly cells and living organisms- pretty insane stuff (:

**7th Grade**

Hi, In science we're mostly earning about everything inside your body like cells and chromosomes.

**Geometry**

The peremiter of triangly rst is 40 what is the perimeter of triange xyz

**calculus**

After solving with A=(-1,2) x^2+2x^2+x+1 got 119/12a pls where did i get it wrong. And with -[(-55)] x^2-25dx i got -50 pls am i correct

**calculus**

find the area enclosed between the x-axis and the curve, if y=x^2-25 for (-5) is less than or equal to x less than or equal to 5

**calculus**

find the area enclosed between the x-axis and the curve, if y=x^3 and the straight line y=x

**calculus**

find the area enclosed between the x-axis and the curve, if y=x^3+2x^2+x+1 between x=-1 and x=2

**calculus**

Determine l= 2e^xdx, given that l=50.2, when x=3

**calculus**

int e^5xsin3xdx =

**calculus**

int dx/3sinx+4cosx dx =