# Posts by Kim

Total # Posts: 2,686

math
Evaluate 13 35 × 5 9

Statistics
If the probability of randomly choosing a county resident from a class of students is 65%, what is the probability of selecting exactly 7 county resident out of a random group of 10 students?

Eli Orchid has designed a new pharmaceutical product, Orchid Relief, which improves the night sleep. Before initiating mass production of the product, Eli Orchid has been market-testing Orchid Relief in Orange County over the past 9 weeks. Now that the daily demand for Orange ...

English
Identify the sentence type. I have to do my homework before I can watch TV. a. simple c. complex b. compound d. compound-complex

Math
Right in equation to show the relationship between the input and output

Physics
Two questions and a small confusion that is not letting me do my homework: When is said that an object is rotating it is mandatory that the addition of rotational momentums gives 0? Under what conditions, two forces of same magnitude but different direction exerted in a body, ...

trigonometry
The diagram is a right triangle, so the length of the ladder would be its hypotenuse, and the height of the wall, the opposite side of the angle of 48. Then Sen 48= x / 15 Clear x and that's the answer.

Physics
I can help you with C: You have height, acceleration (9.81), and initial velocity (0) so you use: Vf ^2 = Vi^2 + 2gh

Math
Y=2x-5 and 4x-y=7

math
Which of the following statements is true about the level of significance alpha?

Math
One square wall you want to paint has a perimeter of (12x - 32) feet. Write an expression that represents the side legnht of the wall.

Chemistry
Elemental analysis of a compound, once used as a pesticide, was found to be 74.2% carbon, 8.64% hydrogen, and 17.2% nitrogen. What is the empirical formula of this compound?

Chemistry
November's birthstone is citrine, a yellow member of the quartz family. It is primarily silicon dioxide, but small amounts of iron(III) ions give it its yellow color. A high quality citrine containing about 0.040 moles of SiO2 costs around \$225. If this stone were pure ...

Chemistry
There are about 1 x 10^5 chemical reactions per second in each of the 10 billion nerve cells in the brain. How many chemical reactions take place in a day in a single nerve cell?

Chemistry
What is the minimum volume of 2.00 M hydrochloric acid necessary to neutralize completely the hydroxide in 800.0 mL of 0.3 M calcium hydroxide?

Math
6(2b)

Math
6 + (5 + x) simplify the expression. Explain each step. How do I do this?

geography
Some have none but some have more than a hundred

Math
Seven subtracted from five times a number, then the difference added to nine times a number

ratio and proportion
832 foot tree casts a shadow of 18 foot how long will the shadow be for a 22 foot tree

Science
A cicular pool with a radius oF 12 meter if filled with water to a depth of 3 meters. What is the weight of water in the swimming pool?

MATH HELP PLZZ ASAP
Sorry, i mean 55 divided by 4

MATH HELP PLZZ ASAP
The youngest Julio can be is 6. As for the equation, 55 divided by 2 which is 13.75. Then divide that by 2 to get 6.875. No one can be 6.875, so the younges he can be is 6. Add on the rest, (48.125) and you'll find out that the oldest his father can be is 48. Hope this ...

calc
Find k so that the function is continuous on any interval. h(x) = k cos x 0 ≤ x ≤ 3π h(x)= 10 − x 3π < x I am confused on how to find k when it gives you 3pi? help please

Math
How many choices do I have if I use three colors from red, white, yellow and blue

physics
a baseball is batted with a speed of 120 ft/sec at an angle of 37 degrees with the ground. find how long the ball is in the air, how high the ball goes, how far from the plate it is caught, and the components of the velocity of the ball 4 sec after it is hit.

physics
A microwave oven has a power requirement of 1250 W. A frozen dinner requires 6.5 min to heat on full power. If the cost of electricity is 12 cents per kWh, how much does it cost to heat the dinner?

physics
A microwave oven has a power requirement of 1250 W. A frozen dinner requires 6.5 min to heat on full power. How much electrical energy (in kWh) is used?

physics
How much heat is necessary to change 345 g of ice at -11°C to water at 20°C

physics
While in Europe, a tourist hears on the radio that the temperature that day will reach a high of 22°C. What is this temperature on the Fahrenheit scale?

physics
How much heat is necessary to change 345 g of ice at -11°C to water at 20°C?

physics
A 4.6 "kilo" bag of sugar is on a counter. How much work is required to put the bag on a shelf a distance of 0.45 m above the counter

physics
How much work is required to lift a 5.2-kg concrete block to a height of 3.1 m?

physics
What is the kinetic energy of a 15 kg dog that is running at a speed of 8.7 m/s (about 19 mi/h)?

physics
A 4.6 "kilo" bag of sugar is on a counter. How much work is required to put the bag on a shelf a distance of 0.45 m above the counter?

physics
While rearranging a dorm room, a student does 307 J of work in moving a desk 1.1 m. What was the magnitude of the applied horizontal force?

Math, number and operations base
I have 8 thousands,17 tens, 5 hundreds, and 12 ones. What number am I?

English
Once upon a time there was a knight who lived in a little castle on the edge of the forest of Life. One day this knight looked in the mirror and saw that he was a White Knight. "Lo!" he cried. "I am a White Knight and therefore represent good. I am the champion ...

Math

Math
what is the solution to 204 - (-36)? A 240 B -240 C 168 D -168

At most, how many 4d electrons can an atom have? Of these what is the maximum number that can have ms= -1/2? A 5f electron has what value of quantum number l? What values of ml may it have? Also please explain how you got the answers so I can understand? Thank you so much!

algebra
solve the equations justify each step with and algebraic property 13=x/4

Grammar
What is the predicate noun in Other subjects were historical or mythical figures. I think it is figures.

technology
To indent the first line of a paragraph which key should you use? A Shift key B Tab key C Enter key D Space key

Math
decrease the quotient of -15 and -3 by 1

You chose a simple random sample of 300 guests you develop a 95 percent confidence interval estimate you found the following 325 and 32 determine the standard error of the sampling distribution determine the critical value z from the standard normal table compute the ...

NCC
a sportscar starting from rest accelerates uniformly at 2m/s squared . What is the speed after 10S?

Physics
how many coulombs must be on one object for it to be repelled with a force of 6.0 N by a second charge of 2.0uC at a distance of 1.0 m?

science
Why is ozone can be describe as our friend

Chemistry
What is the variable x in the following hydrate formula NaCl xH2O if the mass of sodium chloride is 58g and the mass of the water is 36g

Problem: The rock group Loco Moco was scheduled for a concert at the Blaisdell Concert Hall. Because it was the concert highlight of the year, there was excitement in the air and people were eager to get tickets, which could only be purchased in person. Hours before tickets ...

Algebra
Problem: The rock group Loco Moco was scheduled for a concert at the Blaisdell Concert Hall. Because it was the concert highlight of the year, there was excitement in the air and people were eager to get tickets, which could only be purchased in person. Hours before tickets ...

Physics
Thank you!

Physics
A 7.25 μC and a -2.00 μC charge are placed 20 cm apart. Where can a third charge be placed so that it experiences no net force. Express your answer in cm. The answer is 22.12 from the online answer key, but how do you set this up?

Physics
A square 1 m on its side has charges on every corner. Calculate the electric field on the upper right corner of the square. Let the charge on each corner be 40 x10-9C. Do I use K(Q*4)/r^2=F Then F/(Q*4)=E K=8.99*10^9 Nm^2/C^2

physics
A square 1 m on its side has charges on every corner. Calculate the electric field on the upper right corner of the square. Let the charge on each corner be 40 x10-9C. Do I use K(Q*4)/r^2=F Then F/(Q*4)=E K=8.99*10^9 Nm^2/C^2

math
compare the future amounts(a)you would have if the money were invested at a simple interest and if it were invested with annual compounding. ( round your answers to the nearest cent.) \$7,600 at 15% for 25yrs

art 103
thank you

art 103
can you give me examples or explain it to me more

art 103
how do i know id the shapes are soft or hard or bump blend or over lap i don't know anything about art really please and thank you

art 103
i don't understand what is organic or geometric

art 103
"Street, Dresden", 1907, oil on canvas by Ernst Ludwig Kirchner. Describe the shapes in this painting: Are the shapes organic or geometric? Which ones? Describe how the shapes interact, or "touch" each other. Are the edges of the shapes soft or hard? Do ...

Science
Your journey to the centre of the earth took 64 hours at 100km/h. What was the total distance you traveled??

Precalculs
6x-12=log(x)1 that is base x I know the answer is 2 but not sure how to do

Chemistry
Magnesium chloride hexahydrate has a density of 1.69 g/cm3. What is the volume in liters of 1.5 x10^2 pounds of MgCl2*6H2O? yes D=m/v into V=m/d, Do I need to find the formula mass of Magnesium chloride hexahydrate and change pounds into liters? Divide the found numbers and I ...

Pre calculus
olve the system of equations using matrices. Use Gaussian elimination with back-substitution. x + y + z     =      -5 x - y + 3z    =     -1 4x + y + z    =  ...

Kamal School
Try to analyze a little , if Raghav's fruit stallsold 2/5 of a box of apricats and Raj Fruit sold 2/3 as many boxes of apricats as Raghav's did ,therefore 2/5 can be called x and 2/3× is ???

chemistry
what is the actual freezing temperature of a 0.50m aqueous solution of sodium chloride?

English
The customer paid by _______ for his new ______ suit..

Math
sixty-four is four tenths of what number?

math
stem leaf plot stem leaf 5 4 5 6 0 6 9 7 2 3 4 5 5 8 1 2 8 9 9 5 6 a)what is range of data?B) median of data? C) and mode of data A)? B)74.5 C) 75

math
which is Q=200p/l solved for p is it p=QL/200

math
which is M = 9pn solved for p?

Algebra
How would you solve y=2x+3 and y=2x-2 using the substitution.

physics
How much work is required to push a crate at constant velocity with a force of 185 N across a floor a distance of 8 m? J How many calories of thermal energy are produced by the friction? cal

Geometry
Two telephone poles are 60ft. apart, and one of them is 6ft. higher than the other. If the length of the wire between the poles is 61.3 ft., how much wire was allowed for sag?.

Math
Find the area f(x)=10x/x^2+1, y=0, 0 less than or equal to x less than or equal to < 5

Ecology
Draw and label a diagram of 3 different tree pollens with magnification power.

life orientation
Hurting other peoples Disrespecting Acting against someone's rights

chemistry
if 62.3 g of zinc react with hydrophosphoric acid (H3PO4) it produces zinc (I) phosphate and hydrogen. how much zinc (I) phosphate is produced?

volume
102

Math
Thank You Mrs.Sue that makes sense.

Math
Mrs. Sue how did you get that answer. Do you multiply?

Math
A candle burn for up to 4 hours. Which amount of time is equal to 4 hours?

Jen is 26 years younger than her mom. Together, their ages total 50. How old is Jen? How old is her Mom? My 4th grader has not learned algebra yet, so how do we solve this?

im freaked out
It was a test to see how fast you would respond. You guys are great i love this site!

Help!!

im freaked out
Where is a bugs heart located?

Basic Finance
43.09%

physics
A constant electric field is 29, 000N/C is created between two parallel plates. If the potential difference is 140, 000V , how far apart are the two plates?

physics
Two charges +q and −q are separated by a distance d. Find an expression for the potential difference VBA = VB − VA, where points A and B are both a distance b from the charges. ￼

DYNAMICS OF RIGID BODIES
A missile is fired with a launch velocity of 15000 ft/s at a target 1200 miles away. How long after it is fired will the target be hit? Use g = 32 ft/s.s Express your answer in seconds

Math
Fred walks a steady 3 2/3 miles per hour. The beach is 4 1/4 miles from his home. How long will it take fred to walk from his home to the beach and back home again???

MATh
31/3 = 4 6/9 which breaks down to 4 2/3 42/9 = 10 1/3 4 2/3 + 10 1/3 = 14 3/3 = 15

math
There are 24 students in a class. One student will be randomly selected as representative on the student council. if there are 9 boys and 15 girls in class, what is the probability that the representative will be a boy?

math
In the middle of the page, draw two circles an inch apart. Then draw a slight arch going up from the right edge of the left circle to the left edge of the right circle. Then draw a diagonal line out from the left edge of the left circle. This line should go up. Then draw a ...

Math
I will like help with a question on my homework.the question said in a trapezium one angle measure 85 and the other measures 95 what is the size of angle b and angle a.thank you.

Math
Can you check these? .04 is 1/8% of what number? 32 What percent of 1/8 is 3 1/2? 2800%

Math
Is this correct? What is 383 1/3% of 6/10. The answer is came to is 2 3/10 or 2.3

Math
Is this correct? .04 is 1/8% of what number? 32