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Posts by paula

Total # Posts: 328

bearing
A ship is due east of a harbour. Another ship is also 3km from the harbour but on a bearing 042 degrees from it a. Find the distance between the two ships b. Find the bearing of the second ship from the first ship

Math
A man has three times as many quarters as half-dollars, four times as many dimes as quarters, and two more nickels than dimes. If he has $9.25, how many of each coin has he?

Maths
C=60 A=80 B=130 Total of A+B+C 270cm Length of B = 130

Math
Directions are "Order these integer decimals from least to greatest: +.125, -.1428, -0.025 (with a repeating 5), 0.2. I'm thinking that ordering from least to greatest would be: -.1428, -0.025, .125, 0.20

Math
The first question is show how to make one addend the next tens numbers. Complete the new addition sentence: 15 + 37= I need a break down to how to to figure this out. Please.. I have no clue what to do.

Math
is the final answer $7,213.96?

Math
Belinda borrowed $20,500 at simple interest rate of 4.30% p.a. from her parents to start a business. At the end of 3 months, she paid them $7,100 and $6,900 at the end of 8 months. How much would she have to pay them at the end of 18 months to clear the balance?

Equivalent Payments
Belinda borrowed $20,500 at simple interest rate of 4.30% p.a. from her parents to start a business. At the end of 3 months, she paid them $7,100 and $6,900 at the end of 8 months. How much would she have to pay them at the end of 18 months to clear the balance?

COM425
Abdoulaye tells his teammate Rick that he prefers to be called “Abdoulaye”; yet Rick continues to call him “Abdou.” This is a violation of __________ rules. 1) communication 2) relational 3) interpersonal 4) corporate (I think its relational, not sure though)

Com 425
I think it is "Let's agree to not discuss old issues today." Metacommunication is the process of communicating about the manner in which group members communicate.

Com 425
Which of the following statements is an example of metacommunication? 1) "Lets introduce ourselves one at a time." 2) Don't call me names!" 3) I think we should take this vote to the Board." 4) Let's agree to not discuss old issues today."

Math
the answer is 1/2,600

math
Write ( 1 9 ) 3 as a product of the same factor. Then find the value

Physics
A steel ball of mass 8.0 kg and traveling at 3.0 m/s [E] has a head-on elastic collision with a brass ball which is at rest. After the collision, the velocity of the brass ball is 4.0 m/s [E]. Find: a)the velocity of the steel ball after the collision b) the mass of the brass ...

Geography
A bolt of cloth containing 25yd 6in. Was cut into 6 pieces. How long was each piece?

finance
Given an interest rate of 7.2 percent per year, what is the value at Year 9 of a perpetual stream of $3,950 payments that begin at Year 19

Chemistry
Hey Dilcia!!! turns out im in the same online chemistry class as you and I think i figured out this problem. So we know our equation is: CS2 + 3Cl2 ==> CCl4 + S2Cl2 We set up the problem 16 kg CCl4 | 1 mol CCl4 | 1 mol CS2 | 0.076 kg CS2 | | 0.15 kg CCI4 | 1 mol CCl4 | 1 ...

Integral calculus
The length of each leg of an isosceles right triangle is increase at the rate of 2 mm/s. How fast is the hypotenuse increasing at the moment when each leg is 10 mm?

chemistry
a thermometer containing 9.5g of mercury has broken. If Mercury has a density of 13.6g/ml what volume spilled

science
A dog does 12'500 I of work when he pulls a wagon that weighs 250 N. How far did the dog pull the wagon

chemistry help
What mass of ammonium chloride must be added to a 0.500 L solution of 0.250 M ammonia to make a buffer with a pH of 9.26? Kb (NH3) = 1.8 × 10–5?

chemistry
What is the total change in entropy when 10.0 g of ice melts at 25.0°C? DHfus = 6.01 kJ/mol The answer is 1.03 J/K but idk how to find it.

chemistry
Hydroxyapatite is the main mineral component of bone. How many grams of hydroxyapatite will dissolve in 1.00 L of H2O? Ksp = 2.34 × 10–59; Molar mass = 502.3 g/mol? I keep getting 5.83x10^-18 g but the answer is supposed to be 4.35x10^-5 g. I don't understand why

Chemistry
You would use m1v1=m2v2 so (25 mL)(0.1 M) = ( x mL)(0.025 M). You would solve for x mL

chemistry
Would I use the Henderson-hasselbalch equation? And what would I do after that?

chemistry
What mass of ammonium chloride must be added to a 0.500 L solution of 0.250 M ammonia to make a buffer with a pH of 9.26? Kb (NH3) = 1.8 × 10–5?

chemistry
What is the total change in entropy when 10.0 g of ice melts at 25.0°C? DHfus = 6.01 kJ/mol The answer is 1.03 J/K but idk how to find it.

chemistry
Calculate the pH of a buffer which contains 0.0500 M pyruvic acid and 0.0450 M sodium pyruvate. (The Ka of pyruvic acid is 4.1 × 10–3)

Medical billing and Coding
What is defined as improper behavior or billing practices that result in financial gain? I have looked all through the text and cannot find the answer.

calculus
Find the intervals on the x-axis on which the function f(x) is increasing and those which it is decreasing, where f(x) = (x)/(x^2+1) I differentiated and got f'(x)=(x^2+1) -(x)(2x) all over (x^2+1)^2 But I don't know what to do now...

chemistry help
0.0025?

chemistry help
If the standard calcium carbonate solution is 100 ppm and 25 mL of solution is used for the standardization, calculate the approximate volume of 2mM EDTA solution needed to reach the end point of the titration. I know to use M1V1=M2V2 but need help converting units of ...

chemistry
If a solution of lead iodide has [I-] = 1.1x10-4 M, what is the lead(II)ion concentration at equilibrium?

calculus
differentiate y = 2^3x^2 read as two to the 3x squared power

chemistry
Suppose that the reaction of Fe3+ and SCN- produces Fe(SCN)2 (+). 5.00mL of 2.0mM Fe3+ is mixed with 5.00 mL of 2.0mM SCN-. The student finds the equilibrium concentrations of Fe(SCN)2(+) to be 0.3mM. 1.) What is the initial number of moles of each species present? 2.) What is...

Math 110
(a) g(x)=cos(􏰀x/(x^2 +9)) (b) f(x)=x^(5/3) −x^(2/3)

Math 110
Find intervals of increase/decrease and classify all critical points of (a)g(x)=cos(􏰀x/(x2 +9)) (b) f(x)=x5/3 −x2/3

Math
Let f(x) = 2x + 1 − sin(x), how many roots does f(x) have in the interval [−π, π]? Use the next steps to prove that it has only one root. a) Use the Intermediate Value Theorem to show that f(x) has at least one root. (b) Explain why f(x) is increasing on ...

calculus
Find the value of the limit. lim ã(x+4) - 2 divided by x x->0 The 2 is outside of the square root. The answer is supposed to be 1/4 but I keep getting 0/0 no matter how many times I redo the algebra.

physics
A skier of mass 74.6 kg is pulled up a slope by a motor-driven cable. How much work is required to pull the skier 63.3 m up a 39.0◦ slope (assumed to be frictionless) at a constant speed of 2.0 m/s? The acceleration of gravity is 9.81 m/s 2 . Answer in units of J

chemistry help
What are the differences in measuring the molar mass using freezing point depression between studying ionic solids and molecular solids?

chemistry
A sample of 10.00g of a solid unknown was dissolved in 25.00g of water. Assuming that pure water freezes at 0.0°C and the solution freezes at -5.58°C, what is the molal concentration of the solution? What is the molar mass of the solid? Show your calculation. I got ...

Spanish 3 Homework
Oh, I'm sorry! I forgot to mention that in my previous posts; we're learning "single object pronouns".

Spanish 3 Homework
Also, would it be okay if you checked these 4 I got today to practice? It's dealing with the same thing as before. 1.) (you all) Don’t cook the food! My answer: No cocine la comida! 2.) (friend) Don’t cook the food for me! My answer: No cocine la comida para m&...

@SraJMcGin Spanish 3 Homework
Hi! Okay so I got a little confused for #4 and #5. So for #4 it would be "Vamos a estudiemos!" or just "Estudiemos"? And then for #5 is it "Vamos a estudiárselo"?

Spanish 3 Homework
Hi! Can someone check these for me to see if I'm doing them right? Thank you! Directions Re-write the commands in Spanish using object pronouns. Also, the words in parentheses are saying who you are talking to. 1.) (sister) Wash the dishes for me! My answer: Lavaba los ...

Chemistry
A sample of oxygen gas occupies a volume of 3.84 L at 269. K. What volume will the sample occupy at 486. K?

Chemistry
Calculate Delta H for the following equation: Zn(s) + 2H+(aq) = Zn2+(aq) + H2(g)

Math
One box holds 16 crayons.Another box holds 24 crayons.Write a sentence using words that compares the crayons in the two boxes.

Science
Susie decides to pull on a 1.5kg toy (horizontally) with a force of 25N. Friction acts against the toy with a force of 6n. What is the acceleration of the toy?

Calculus
A rocket is fired vertically into the air at the rate of 6 miles/min. An observer on the ground is located 4 miles from the launching pad. When the rocket is 3 miles high, how fast is the angle of elevation between the rocket and the observer changing? Specify units.

Networks
12.00, (2) 25.00

algebra 1
princess leia is a very good math student. Her average math grade was a 95 on her 15 tests. If Darth Mangham decides to drop her lowest grade, write an expression to determine her new test average.

public speaking
When preparing an outline for a speech which of the below is NOT a part of the speech outline

public speaking
Medium that carries message signals from senders to receivers of communication is

Chemistry
What mass of ammonium nitrate is require to produce 145L of N2O at 2850 torr and 42 degree celcius

Algebra
Solve 9 - c <2 or -3c > 15 My answer is 7 or -5

Algebra
Solve 5<x-2<11 My answer is 7<x<13

Algebra
Choose them compound inequality that represents all real numbers that are less then -3 or greater than or equal to 5.

Algebra
U = 1,2,3,4,5,6,7,8,9,10 Q=3,6,9 What is Q prime? My answer is 1,2,4,5,7,8,10

Algebra
Thank you

Algebra
Sis the set of prime numbers that are less than 15. My answer is 2,3,5,7,11, and 13

Algebra
What inequality represents the verbal expression all real numbers less then 69? My answer is x<69

physics
Scientists want to place a 3300 kg satellite in orbit around Mars. They plan to have the satellite orbit a distance equal to 2.2 times the radius of Mars above the surface of the planet. Here is some information that will help solve this problem: mmars = 6.4191 x 1023 kg rmars...

Algebra
Thank you

Algebra
solve and show steps 6=x+2/3

Algebra
3(x-7)-x= 2x-21 Does this equation have infinitely many solutions My answer is yes.

Algebra
4y+8=6y+3 Is the expression true,false,or open? My answer is true = 5/2

Music
What is the vertical line at the end of a measure called?

Math
44

Music
if you add up the durations from left to right on any level of a note tree you end up with a what?

Math
I don no andedte

Math
In above triangular prism,ab=3cm,ac=4cm,bc=5cm and cd12 cm,show that triangle ABC is a right-angled triangle

3D Modling
What are the preset views in Blender Software?

Physics
David, who is 65 kg, is driving his car at a speed of 25 m/s. He sees a dog crossing the road and so he steps on the brake to avoid hitting it. His seatbelt brings his body to a stop in 0.4 s. What magnitude of force does the seatbelt exert on him?

Physics
02. Comic-strip hero Superman meets an asteroid in outer space and hurls it at 800 m/s, as fast as a bullet. The asteroid is a thousand times more massive than Superman, yet in the comic strip, he remains stationary after releasing the asteroid. Say, his mass is 107 kg, what ...

math
compare write >or< for 2,854,376 to 2,845,763

finance
A quaint but well established cafe shoppe in the new hot cafe wants to build a new cafe for increased capicity it expect sales are $800,000.00 for the first 5 years, direct cost including labor and material 50% for new cafe will be totaled at $750,000.00 which will depreciate ...

SAT math
A family of 2 parents and 4 children is eating lunch at a rectangular table with 2 chairs on each side and one chair on each end. In how many ways can they be arranged if the two parents sit in the two end chairs? a. 12 b. 30 c. 36 d. 48 e. 720

Algebra
first set up a regular proportion: 5a/x = 20 ohms/ 25 ohms Because the problem says the current varies inversely you would flip only one side of the proportion: 5A/xA = 25 ohms/ 20 ohms cross multiply: 100 = 25x ohms Divide by 25: x = 4A

math
208 square root to nearest hundredth.

math
255 square root to the nearest hundredth.

math
130 square root to the nearest hundredth.

Math
X^ -3 = 216 How do you find x?

information technology
How does the organizational strategy drive the IT strategy?

SAT math
The slope of the line passing through p and q is -3/5. What is the value of x? P(1,4) Q(x,1)

Math
The slope of the line passing through p and q is -3/5. What is the value of x? P(1,4) Q(x,1) I got 6 but Im not sure

SAT MATH
if x^2 - y^2 = 77 and x + y=11 what is the value of x?

Math
if 5x + 7y = 18 and 2x - 4y = 6, what is the value of 7x + 3y? a. 7 b. 12 c. 19 d. 24 e. 31

math
if the sum of 7 integers is even, at most how many of these integers could be odd? a. 3 b. 4 c. 5 d. 6 e. 7

Earth Science
thanks!

Earth Science
A contour (topographic) map indicates that a stream is flowing across a landscape. If the stream has a constant volume, where on the map would the stream most likely have the highest velocity? a. As the stream moves across several closely spaced contour lines b. as the stream ...

Math
if the line containing the points (a,3) and (b,2) has a slope of 1/7, then a-b=

science
2 students were testing the amount of fertilizer that would best promote the growth of strawberries in a garden. What is an unavoidable error they can make during this process?

Biology
. 2 students were testing the amount of fertilizer that would best promote the growth of strawberries in a garden.List an unavoidable source of experimental error

biology
identify and describe how organism could respond to an external stimulus

Trig
Given that csc θ = -4 and tan θ > 0, find the exact value of a. x b. sin θ c. cos θ d. r e. sec θ f. cot θ

Trig
Given that tan θ = - (√3/8) and θ is in QII, find the exact value of a. r = b. csc θ c. cos θ d. cot θ

Trig
Given that cos θ = 5/13 and θ is in QIV, find the exact value of a. y b. sin θ c. sec θ d. tan θ

Math
thanks

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