Posts by anonymous

Total # Posts: 116,567

Algebra
The rest isn't right?

Algebra

Algebra

Algebra
Martin is making a candy that contains 90% milk chocolate and the rest caramels. The candy has 3 pounds of caramels. Part A: Write an equation using one variable that can be used to find the total number of pounds of milk chocolate and caramels in the candy. Define the ...

math
three sisters shared some mangos in the ratio 5 : 3 : 2. if the one with smallest ratio received 25 mangos , find the number of mangos shared

maths
the diagram shows the plan view of a swimming pool. The pool has a rectangular swimming area and a semi-circle area with steps. Work out the total surface area of the top of the pool. Giver your answer to 3 significant figures.

algebra
5^n+3/25^2n-3=1

Biology
One kind of fish, the hagfish, is considered an invertebrate by scientists. Why is this fish an invertebrate whereas all other fish are vertebrates?

Biology
Which chordate structures are lost when a larval tunicate develops into the adult form?

Chemistry
Sorry I didn't mean to repost this!

Chemistry
The combustion of 0.1572 g benzoic acid increases the temperature of a bomb calorimeter by 2.52°C. Calculate the heat capacity of this calorimeter. (The energy released by combustion of benzoic acid is 26.42 kJ/g.) What is the heat capacity in kJ/C? = 1.65 kJ/C A 0.2197-g ...

Math
Work the full problem out

Math
P(A) = 1 - 0.41 = 0.59 ?

Math
If P(A) = O.41 then P(?)= Which one is the correct answer?I can't figure it out 0.59, 1.00, 0.26, 0.82

Chemistry
What would be the correct number of sig figs?

Chemistry
The combustion of 0.1572 g benzoic acid increases the temperature of a bomb calorimeter by 2.52°C. Calculate the heat capacity of this calorimeter. (The energy released by combustion of benzoic acid is 26.42 kJ/g.) What is the heat capacity in kJ/C? = 1.65 kJ/C A 0.2197-g ...

Ss
I need help anyone go c.a i need help

maths
If the perimeter of a protector is 72cm then its radius is

Math
18:2 2:18 18/20

physics
The average height of an apple tree is 4.00 meters. How long would it take an apple falling from that height to reach the ground? Given: g = -9.8 meters/second2

Criminal Justice
Can police act on information they receive from health inspectors?

Science
If the initial amount of Carbon-14 in the mammoth was 8 grams, how many half-lives have passed i the fossil sample has 1 gram left? How many years have passed since the mammoth's death?

Math
fdf

Math
Matthew got 36 problems rights out of a total of 40 problems on a tes.wht percent of the problems did he her rights

Science
You are correct

Science
1/8?

Science
Think more fraction. which fraction times 600 equals 4800

Science
Object E has a mass of 4,800 kilograms. Object F has a mass of 600 kilograms. Both objects were placed on different planets so that their weights are equal. The gravity acting on Object E is ________ times the gravity acting on Object F. 1/8 1/4 1 8** Am I correct

Chemistry
What mass of manganese (II) chloride must react with sulfuric acid to release 49.5 mL of hydrogen chloride gas at STP? MnCl2(s) + H2SO4(aq)-->MnSO4(aq) + 2HCl(g)

Chemistry
What mass of manganese (II) chloride must react with sulfuric acid to release 49.5 mL of hydrogen chloride gas at STP? Mg(s) + H2SO4(aq) -->MgSO4(aq) +2HCl(g)

Math
Each ounce of a substance A supplies 2% of the nutrition a patient needs. Substance B supplies 15% of the required nutrition per ounce, and substance C supplies 15% of the required nutrition per ounce. If digestive restrictions require that substances A and C be given in equal...

Egg-speriment help

S.S.
bleh

Probability
48% of the students in the school are female and the probability of taking of physics is independent of the gender of the student, what is the probability that a student chosen at random is both a female and taking physics?

Social studies
Its for a portfolio

Physics
A uniform metre scale is balanced at 20cm mark when a weight of 120gf is suspended from one end

Science
When Seed start to sprout is called __________

science
ROLLER COASTER JUGGLING OF A SAIL

science
make a list such action where many force and applied simultaneously (ref page number 70 to74

Chemistry
Chlourine monoxide reacts with flourine gas to give a new unknown gas that contains Cl, O and F. In an experiment you find that 0.15476 g of the new gas has a preasure of 17mmHg ina 1850 mo flak at 21ºC. What is thd identity of the unknown gas?

Math
Twelve and two hundred five thousandths

Math
Each ounce of a substance A supplies 2% of the nutrition a patient needs. Substance B supplies 15% of the required nutrition per ounce, and substance C supplies 15% of the required nutrition per ounce. If digestive restrictions require that substances A and C be given in equal...

Math
How do i do this with and without distribution?

h = Hi + Vi t - 4.9 t^2 0 = 2 + 27.5 t -4.9 t^2 or 4.9 t^2 -27.5 t - 2 = 0 solve quadratic for t, use the positive answer (any negative root was on the way up before you threw it :)

Science
How does rubbish or pathway affect the living organisms and also the abiotic factors? Do you have suggestions on how can we prevent them?

number theorem
1.[-1/4] 2.{7} 3.[-22/7] 4.[5/4] 5[[1/2]]

Math?
How do you find the expression?

Math?
Which expression is equivalent? ?5(?3x ? 6) A) 15x + 30 B) 15x ? 30 C) ?15x + 30 D) ?15x ? 30

Algebra
These are Two problems that I am having difficulty with. Write as a single logarithm. Assume all variables represent positive real numbers. 1. 5log3 a-7 log3 b+2 log3c 2.log7(x2+5x-24)-log7(x+8)

math
a single ball is drawn from an urn containing 6 balls numbered 1 through 6. Find the probability that the ball choose as follows. an even-numbered ball or an odd-numbered ball

Science
Can you help me? what iss 42.1 pounds eqaul to?

Science
Which factor impacts the possible number of ways in which different atoms can be put together? An atoms inability to share neutrons and protons. The ability of atoms to combine in unlimited ways. An atoms inability to react with all elements the same way. ***** The inability ...

Calculus
If there is a critical point between intervals where a function is increasing on both intervals, is there a relative max/min at that point?

Mathematics
P=kd varies directly If the pressure is 125 pascal when the water is 2m deep,find the pressure when it is 4.5 meters deep . can you show me the solution?

Chemistry
Determine the fluoride ion concentration for a saturated solution of magnesium fluoride. (Ksp = 7.4E-11)

Science
The pressure P at the bottom of a swimming pool varies directly as depth of water. If the pressure is 125 paacal when the water is 2m deep ,find the pressure when it 4.5 meters deep.

Calculus
I'm sorry...the function is supposed to be x^2/(x-3).

Calculus
Find the intervals on which x^2/(x-3)^2 is decreasing. a. (0,6) b. (0,3), (3,6) c. (-inf,0), (6,inf) The critical numbers are x=0 and 6, but since there is an asymptote at x=3, I'm not sure whether a or b is the answer.

...... Connections tracks what you do on the computer, if you are using a school computer. If you aren't, I don't think they do.

History
What is the difference between countries with freedom of expression?

math
THE correct expontial form of 2(x)(x)(y)(y)(y)

Math
The ratio of the number of sheep to the number of horses on a farm is 8:3. If there are 42 horses on the farm, how many sheep are there on the farm? Sheep

math

physics
A spring is hung from the ceiling. A 0.536 -kg block is then attached to the free end of the spring. When released from rest, the block drops 0.180 m before momentarily coming to rest, after which it moves back upward. (a) What is the spring constant of the spring? (b) Find ...

physics
The pressure increases by 1.0 x 104 N/m2 for every meter of depth beneath the surface of the ocean. At what depth does the volume of a Pyrex (bulk modulus 2.6 x 1010 N/m2) glass cube, 5.6 x 10-2 m on an edge at the ocean's surface, decrease by 3.0 x 10-10 m3?

History
I'd love to see you

Physics
1.22

chemistry
In an effusion 15 ml of HBr effused in 1.0 min. In the same apparatus under the same conditions, 20.3 ml of an unknown gas diffused in 1.0 min. If the unknown contains only carbon and hydrogen. determine the molecular formula of the unknown gas,

chemistry
Ethanol ( C2H5OH) undergoes a reaction with oxygen gas in the air. Calculate the volume (l) of oxygen gas at 45 degrees celcius and mmHg that is required to react with 185 g ethanol. Then calculate the volume of air required to react with 185 g assuming that air is 21% by ...

chemistry
A 355.0 ml container holds 0.146 g nitrogen gas and an unknown amount of argon at 35 degrees and a total pressure of 626 mmHg, Calculate the amount (mol) of argon in the container.

Math
A family has three children. Assuming a boy is as likely as a girl to have been born, what is the following probability? Two are girls and one is a boy.

Lanaguage Arts 8th
Will do, thank you!

Lanaguage Arts 8th
There is little, if any, “storm” in the new movie Storm Fever. Aren’t actors supposed to act, and aren’t directors supposed to direct? Actor Robert Pierre seems to wander aimlessly around the set. And director Sue Smith can’t seem to figure out how to ...

Science
When a car is driving forward on a horizontal road what is the direction of the frictional force on the tires?? The answer is forward on all tires, but how is this correct?

math
find the volume of a prism whose dimensions are x cm, (x+2) cm and (x-1) cm in its simplest form

Anatomy
A football kicker primarily uses which muscle movement to kick the ball? A. Abduction B. Adduction C. Extension D. Circumduction C?

Home Economic
Draw a diagram of print and calico patch

math
the perimeter of a rectangle is 8.0 cm. The width is 3/5 of the length. find the width and the length

anatomy
How is the percentage of body surface area affected by burns determined? A. Depth of burn B. Type of burn C. Rule of nines D. Amount of hair singed B

anatomy
There are _______ chromosomes in a human body. A. 20 B. 30 C. 46 D.38 I chose C

mathematics
the fifth and tenth term of an Ap are 0 and 10 respectively.find the twentieth term

Math
A city park planner is deciding between two proposals for a new rectangular playground. One is for a playground with an area of 1930 square feet. A) The second proposal is for a playground that is 11.5 meters long and 19.5 meters wide. What is the area of this playground? Use ...

Math
A city park planner is deciding between two proposals for a new rectangular playground. One is for a playground with an area of 1930 square feet. A) The second proposal is for a playground that is 11.5 meters long and 19.5 meters wide. What is the area of this playground? Use ...

Math help
How do you solve this please show with steps I'm very lost, I tried to put it in square root and I tried to multiply my approaches do not add up to the answer which is supposed to be 9/125... (3^1/3 • 5^ -1/2)^6

Math
Use log table to solve these; 2.647*0.00921 / 0.05738

Chemistry (12)
The specific heats (in units of J/g•K) of MoF6, CHBr3, and SnCl4 are 0.8090, 0.5172, and 0.6345, respectively. What is the order of the molar heat capacities? Formula weights: MoF6 209.9; CHBr3 252.7; SnCl4 260.5 (a) MoF6>CHBr3>SnCl4 (b) MoF6>SnCl4>CHBr3 (c) ...

Math
A box has 9 marbles, 4 of which are white and 5 of which are red. A sample of 5 marbles is selected randomly from the box without replacement. What is the probability that exactly 3 are white and 2 are red? (Enter your answer as an exact fraction.)

History
It's not D.

Math
the cote family car gets between 25 and 29 miles per gallon of gasoline the fuel tank holds 17 gallons of gasoline and the cotes refill the tank whenever it is 1/4 full the cost of gasoline will be 3.46 and 3.69 per gallon A) write expressions to estimate the amount they will ...

History
I think she does

History
malia do you go to primavera?

Physics :(
Bobby? ?is? ?pushing? ?a? ?20kg? ?box? ?up? ?a? ?plane? ?inclined? ?at? ?27? ?degrees? ?above? ?the? ?horizon b.? ?find? ?the? ?force? ?bobby? ?needs? ?to push? ?with? ?so? ?the? ?box? ?is? ?accelerating? ?at 5m/s^2

Science
Thanks!

Science
How can you purify a water using only materials at home? How will you know if it is purified or not?

Physic question help
A uniform disk with mass 9.6 kg and radius 2.7 m is pivoted at its center about a horizontal, frictionless axle that is stationary. The disk is initially at rest, and then a constant force 31.5N is applied to the rim of the disk. The force direction makes an angle of 35 degree...

Chemistry
A 7.52 g sample of an aqueous solution of hydrobromic acid contains an unknown amount of the acid. If 13.5 mL of 0.633 M barium hydroxide are required to neutralize the hydrobromic acid, what is the percent by mass of hydrobromic acid in the mixture?

History
Shes up to 687 now

History
wow

History
bruh its the slaves