# Posts by Angelina

Total # Posts: 383

**physics **

A glass window with a mass of 20kg is heated to a temperature of 32C by the sun. How much thermal energy is released by the window to the surroundings as it cools to 5C at night? The answer is 4.5x10^5 J but I don't know how to get there. Thank you!

**physics **

How much heat is required to convert 3kg of ice at -5 degees C into steam at 125 degrees C?

**Math**

What do you mean?

**Math**

Determine whether the number is rational, irrational, or not a real number. 1. 3.316624. . . 2. 3.16227. . . 3. 0 4. square root of 14 5. square root of 10/3 6. -4 7. square root of 9/16 8. 3/0 9. 6.283185. . . 10. 8.432467. . . 11. 0.25

**Biology**

I wasn't guessing I actualy didn't know if I was right and I wanted u to tell me y I was wrong

**Biology**

No is it a type of rock

**Biology**

During the Late Carboniferous, Indiana lay close to the equator, making the climate humid and warm. Swamps and wetlands were prominent in much of the state. Dominant fossil plants from this time include lycopods, conifers, and seed ferns (extinct gymnosperms). Plant material ...

**Chemistry**

for any solute what important condition must be stated in order to report the solubility answer

**biology**

All of the cells are in the very early stages of embryonic development and have not begun to differentiate into specialized types of cells. What type of cells would these be? A) gametes B) stem cells C) somatic cells D) epidermal cells

**Biology**

All of the cells are in the very early stages of embryonic development and have not begun to differentiate into specialized types of cells. What type of cells would these be?

**math**

to rent a van a moving company charges $40.00 plus $7.50 per mile. the table shows the total cost for the number of miles driven. enter an equation in slope- intercept in this represents this situation

**Math**

What Is the Unit Rate of 130 miles in 5 hours

**biology help**

no help but ok

**biology help**

Unicellular Has a cell wall May have flagella Single chromosome Ribosomes for protein synthesis

**biology help**

The features listed above describe what type of cell? Unicellular Has a cell wall May have flagella Single chromosome Ribosomes for protein synthesis

**English**

I think you should omit the the card. It makes more sense without it

**biology**

How many possible genotypes and phenotypes are there for a single gene trait that shows dominance in any given population?

**Biology**

Mutations can occur in the chromosomes of all types of cells. Mutations that are passed on to offspring must occur in

**Math**

Jonah and his friends go apple-picking Jonah fills 5 baskets each basket holds 15 apples if 4 of Jonah's friends same amount as Jonah how many apples did Jonah his friends pick in all draw a diagram to solve the problem

**Algebra 1**

Thanks so much

**Algebra 1**

11n+23=3n-13+84 Solving multistep linear equations If someone could show me step by step how to do this it would mean alot god bless!

**math**

Could someone please help me answer this question i am stuck! A Marketing company provides the following formulas to the owner of an amusement park to help him make decisions about the park. -The number , N, of people who attend the park is a function of price, p, in dollars: ...

**Math**

thank you for answering the question! but I am still not understanding it properly. If you don't mind solving it step by step so I understand how its done. Thank you

**Math**

Could someone please help me to solve this equation using exact values. 9^(2x)+4(9^x)=21 and also check for extraneous roots. thank you

**Math**

Could someone please help me with this!

**Math**

Sorry me and my friends were working together so everyone was asking question with their names.

**Math**

Two software companies are developing new android apps. The average profit per x hundred downloads earned by each company can be modelled by the rational functions below, where x > or equal to 0. Trance Media: G(x)=80x+150/x Ellen's incorporated: B(x)=35x+600/x How many...

**Math**

please could someone answer this question!

**Math**

could you please help in finding the second value of t. thank you

**Chemistry**

What is the unit for molality? The unit for molality is moles per kg Or M/kg

**Maths**

Find the equation of the parabola with its axis parallel to x-axis and passing through the points (-2,1),(1,2),(-1,3)

**Maths**

Find the equation of the parabola with latus rectum joining the points (3,5) and (3,-3)

**science**

The momentum of a tennis ball and football is the same.Do they have the same kinetic energy? Justify your answer

**Physical science**

Describe how to determine the ideal machanical advantage of each type of simple machine How are the lever and the wheel and axle related?

**Algebra 1**

find the explicit formula. 1. 0.5, -1, 2, -4 ... 2. 5, -5/3, 5/9, -5/27 ... 3. 1.25, 5, 20, 80 .... 4. -4, -24, -144, -864 ... 5. 4, 12, 36, 108 ... 6. 3, -15, 75, -375 ... 7. 2, 4, 8, 16 ... 8. 3/2, 3/4, 3/8, 3/16 ... 9. -1, -6, -36, -216 ... 10. 3, 12, 48, 192 ...

**English**

1. Odysseus makes a sacrifice to sovereign death and pale Persephone what does this background tell you about Hades? 2. the painting illustrates the descent of Ulysses (Odysseus)into the underworld. how has the artist distinguished between Ulysses and the dead? 3. do you think...

**Math**

11.111111 hours

**Algebra 1**

1.the number of bacteria present in a colony is 180 at 12 noon and the bacteria grows at a rate of 22% per hour. how many will be present at 8pm? 2.A 1970 comic book has appreciated 10% per year and originally sold for $0.35. What will it be worth on 2010? 3.The cost of a high...

**math**

There is one coach for every 12 players. How many coaches will be needed for 48 volleyball players? Use a bar diagram to solve. (I know the answer is 4 coaches, but I don't know how to draw the diagram for the problem)

**Math**

on the weekend, the county pool has one open-lap lane session for 45 minutes each day of the weekend. weekday open-lap sessions are for 30 minutes. the number of weekday open-lap sessions vary. last week there were a total of 6 hours of open-lap sessions. how many weekday open...

**math**

Instead of using the distributive property to expand 0.25 x ( 16.60a + 12.20y), could you have first found the sum 16.60a +12.20y? Explain.

**math**

(3x+1.5)+(7x-4.5) 10x-4

**Math Pre-Algebra**

Maria has baked a cake for Cathy's birthday. The dimensions of the cake are 13/1/2 inches by 6/3/4 inches. The cake is going to be cut into squares with each piece being approximately 5.55% of the cake, which should give a total of _______ pieces of cake with each piece ...

**Math**

If x is a nonzero real number,is x-2 always positive,always negative,or positive or negative depending on whether x is possible or negative explain

**Math Pre-Algebra**

How would you solve this problem? (s-4/9)(-2/3)=-4/5

**Math**

How would you solve this problem? (s-4/9)(-2/3)=-4/5

**math**

ok, so you would make 6 a fraction which is 6/1 and for 2/7 find the recipricol of it which is 7/2. then, multiply 6/1 and 7/2. You will result in 21.

**Pre-algebra**

How would you solve this problem? (s-4/9)(-2/3)=-4/5

**Pre-algebra**

never mind i checked and my answer is correct, but what do you mean by expanding the parenthesis?

**Pre-algebra**

-14 is the answer right?

**Pre-algebra**

How would you solve this equation? (t+8)(-2)= 12

**Algebra**

1.Is the line contains the points P1(-1,2)and P2(3,4) perpendicular to the line that contains the points Q1(-1,3)and Q2(-4,1)? 2.a line given two points P1(4,5),P2(-4,3)

**Algebra**

Explain how you can determine from the graph of a system of two linear equation in two variables whether is an inconsistent system of equation. 2. When you solve a system of equation by the substitution method how do you determine whether the system of equation is inconsistent?

**linux networking**

What are two ways you can execute a shell script when you do not have execute permission for the file containing the script? Can you execute a shell script if you do not have read permission for the file containing the script?

**Algebra**

tony and his sister maria have the same birthday but tony is five years older than maria let the varible x represent tonys age and y represent maris age. which graph represents the relationship between tons age and marias age?

**bayside hs**

One genetic disease was tested positive in both parents of one family. It has been known that any child in this family has a 25% risk of inheriting this disease. A family has three children. The probability of this family having at least two children who inherited this genetic...

**Algebra**

you have a rack that can fit 30 cds you can fit 7 more cds on the rack before the rack is fulll which equation models this situation appropiratly where x represents the number of cds?

**ENGLISH SOS!!!!!!!!! MS SUE, SOMEONE, PLEASE!**

1. A 2. C those are correct answers

**Algebra**

the table shows the heights in inches of trees after they have been planted. determine the equation which relates x and y

**civics**

going global unit exam

**Math**

ok

**Math**

kk thxs

**Math**

thxs

**Math**

A line passes through the points (4,-1) and (2,3. what is the slope of this line? A. -1/2 B. -2 C. 1/2 d. 2

**Language**

An appositive is a small section of extra information which is inserted into a sentence for clarification. Commas are usually used to offset the appositive, but if the appositive contains one or more commas, that would get confusing for the reader. When using an appositive ...

**Language**

charles lutwidge dodgson

**Language**

the second one Charles Lutwidge Dodgson

**Language**

yes you are correct

**Language**

yeah i agree

**Language**

what's the full sentence?

**Language**

the answer is c. a prepositional phrase always starts with a preposition

**math**

plz help me

**math**

The range for company a is 7 and company b is 11. compare the range of each company's sales.

**civics**

thank you for the info it helped sooo much :)

**civics**

for the countries in north america each import and export different products the united states exports to other countries on every continent why is this possible

**studio art**

how is a interior designer in a modern kitchen most different from interior design found in nineteenth century kitchen

**science**

A new organism is introduced into a ecosystem. it gets its nutrients from a dead tree. can this organism be described as a scavenger or decomposer

**LA**

oh ok. thanks so much:)

**LA**

Computers make calculations incredibly quickly. intransitive or *transitive verb*? They perform many tasks that people often find boring and difficult. transitive or *intransitive*?

**geometry**

25times 25= 3.14times25times25

**social studies**

what are some examples where societies influence each other?

**ss**

where do our alphabet come from? is it from the phoenicians

**social studies**

What are some examples when world history gives you the understanding of the world and how societies have impact on each other.

**please answer my question (math)**

the price of a 3- pack spinner is one third the price of the of a dozen flyboys. write and solve a division equation to find the price of a dozen fly-boys. there are $3 for each 3-pack spinner . is the equation supposed to be n/12=27?

**division write and solve**

omg please answer my question. is it right or not right

**division write and solve**

the price of a 3- pack spinner is one third the price of the of a dozen flyboys. write and solve a division equation to find the price of a dozen fly-boys. there are $3 for each 3-pack spinner . is the equation supposed to be n/12=27?

**math**

the price of a 3- pack spinner is one third the price of the of a dozen flyboys. write and solve a division equation to find the price of a dozen fly-boys. there are $3 for each 3-pack spinner . is the equation supposed to be n/12=27?

**math**

thank you

**math**

then is it $37.50 for a pack of power dog food?

**math**

is it x/3=12.50?

**math**

a bag of super dog food, at $12.50, is one third the price of a bag of power dog dog food. write and solve an equation to find the price of a bag of power dog dog food

**math**

140

**math**

at the end of a soccer game season four families decide to buy the coach of gift certificate to a sporting goods store. each family contributes $35 towards the gift certificate. write and solve a division equation to find how much the gift certificate is worth

**math**

Dion's grandmother is making a quilt using four small squares put together to form one large large square block. how many different can she make using one each of red, green, blue, and yellow smalle squares? show the possible arrangements

**Math**

there will be 2 t-shirts and 1 collared right?

**Math**

never mind thanks mrs. sue i get what u are saying

**Math**

so the answer is 2? and how many t-shirts and collared shirts will they be?

**Math**

sorry #1 is 10/5

**Math**

1.Jake has 10 t-shirts and 5 collared shirts. What is his ratio of t-shirts to collared shirts? this answer is 5/ 10 what i can't figure out is the second part of this 2. If Jake buys 3 new shirts, how many of them would you expect to be to be t-shirts, and how many would ...