# Betty

Newest questions posted by Betty-
## Math

Use long division to find the remainder when f(x)=3x^5-7x^3-11x^2+2 is divided by x-2. -
## Biology

Mucin is a glycoprotein found in mucus that increases its viscosity. Carbohydrates are added to mucin in which of these structures? cytoplasm Golgi apparatus nucleus rough er So I think it's the Golgi apparatus or the rough er, since they both help with -
## AP Biology

Although terminally differentiated cells do not divide, the nuclei in these cells are still that site of what important function? Carbohydrate synthesis DNA synthesis mRNA synthesis protein synthesis -
## Childhood Education

There is a fine line between guiding children's problem solving and interfinf with their self discovery. I am think f -
## Precalculus

Find the inverse of g(x)=(1/3x)-7 and then find its domain and range. I already found the inverse of the function. -
## Precalculus

Let f(x)=1/x and g(x)=x^2 + 5x. a. Find (f*g)(x) b. Find the domain and range of (f*g)(x). -
## Precalculus

Inverse of f(x)=(1/4x)+2 -
## Precalculus

Find the domain and range for the inverse of f(x) = (1/4x)+2. -
## Precalculus

Determine the domain of (f/g)(x) when f(x) = 1/x and g(x) = sqrt(x+5). I have the domains of both functions and I know how to set up (f/g)(x), but I don't know where to go from there. (f/g)(x)= (1/x)/(sqrt(x+5)) domain of f(x) = (-∞,0)-(0,∞) domain of -
## Childhood Education

Low achievement and academic accompy are appropriate for non English speaking preschoolers. I am think false. -
## early childhood education

What does it mean suggest age group -
## Childhood Education

Name an object for a child may promote the child's oberservation of it's distinct features. T or F I am think T 2.Most toddlers reveal their thinking in their speech rather than in the actions they are performing. I am think -
## early childhood education

Toddler brains are as active as adults. True -
## early childhood education

If a young child calls a dogs,he has made a logical error. I am thinking true. Adults speaking parentese may effect their infant heart rate. I think false -
## Consumer Math

Clay brought a $500 series EE bond and redeemed it after 4 years for $329.20. How much interest did Clay earn? -
## Early Childhood Education

I am having a hard time finding article for this assigment? Find an article on one or more strategies that work with young children to promote sociable and acceptable group behavior with peers -
## Reflective Checklist

List two items you would expect to see in a setting for a children 3-5 years of age that promote social interaction? -
## School

I don't understand this question? List some of the issues facing our society related to marriage, divorce and living together without legal paperwork. -
## Culture

Can reinforcement be a skill -
## Work Cited

How do you in text citation for youtude video -
## Culture

Can you think of some examples of behavior that seem challenginf to you but may be culturally appropriate for a child. -
## grade

How to figure out a grade 19 out of 25. -
## Help

What role do genes play in brain development in the following. I am having hard time finding information. Gene-environment correlation Gene-environment interaction Epigenetic processes -
## Early Childhood Education

I am so unclear how did do this assigment Choose two different countries and write about the differences parents might have in dealing with the following scenario. In your writing (one to two pages), list the three things a parent may do differently in one -
## Education

I need help with finding articles dealing turbulent times for children. -
## Early Childhood Education

I am writing a paper about Emotional and behavior disorders I am not sure the website in my paper. I would be good ones to use my the possible outcomes for the child who is exposed to this particular type of risk. How might this risk factor impact the -
## Early Childhood Education

Substance abuse during pregnancy Emotional and behavior disorders Write a two-page double-spaced paper describing the risk factors involved and the possible outcomes for the child who is exposed to this particular type of risk. How might this risk factor -
## Early Childhood Education

What kinds of stress do families who live in poverty encounter -
## Early Childhood Education

Name 5 other challenging behaviors in addition to biting that children may exhibit. -
## math

I need an answer to this question.Express the product of 0•006 and 0•0009 in the standard form. -
## social studies

In what type of economic system do individuals own most of the businesses? A democracy B communism C capitalism D socialism c is my answer -
## Math

1.The actual distance between two cities is 135 km the map scale is 1 cm:100 km. Find the map distance. A)13.5 B)1.35////My answer//// C)0.135 D)1350 2. On a map of New Mexico, 1 cm represents 45 km. The distance from Albuquerque to Santa Fe is 2 cm. Find -
## math

solve the proportion 4/5=x/27 -
## Physics

How can an object be a specular reflector for some electromagnetic waves yet be diffuse for others? -
## physics 2

A simple pendulum is 8.00 m long. (a) What is the period of small oscillations for this pendulum if it is located in an elevator accelerating upward at 3.00 m/s2? (b) What is the period of small oscillations for this pendulum if it is located in an -
## chemistry

Write a comlete, balanced chemical equation for the reaction that occurs between aqueous iron(II) sulfate,FeSO4, and aqueous potassium hydroxide -
## science

I need help constructing a graph showing and predicting when two toy cars traveling at different speeds when the fast car can pass the slower car.The fast car traveled 1.5 meters in .87 sec.and .94 sec and .97 sec in three trials. The slow car traveled 1.5 -
## Science

Predict when a fast toy car can pass a slower toy car . I marked off a distant of 1.5 meters and recorded the time it took the cars to reach the finish line. How do I create a graph and make a prediction? The fast car times were .87 sec. ,.94 sec. ,and .97 -
## physics

What changed Newton's original work on the movement of the Moon around the Earth into the law of universal gravitation? 1) his conclusion that the same laws applied to all objects, no matter how small 2) his connection of gravitation to his first law 3) -
## Chemistry

Identify the precipitate(s) of the reaction that occurs when a silver nitrate solution is mixed with a sodium chloride solution. Check all that apply. silver nitrate sodium chloride sodium nitrate silver chloride -
## physics

What two facts did Newton need to be able to calculate the acceleration of the Moon? 1) the distance to the Moon and the diameter of the Moon. 2)the time it takes the Moon to make one revolution and the distance from the Earth to the sun. 3)the diameter of -
## Chemistry

What two facts did Newton need to be able to calculate the acceleration of the Moon? -
## physics

In these figures, we see a boy named Billy riding a carnival ride called the Rotor and the free-body diagram for the forces acting on him. What must be the magnitudes of the vectors (f)wall,Billy and (W)Earth,Billy if Billy remains at the same height along -
## math

A popular snack food reduced the amount of sodium in one serving from 700 milligrams to 480 milligrams. What is the percent decrease in the amount of sodium in this snack? -
## math

You flip a coin and you roll a number cube. What is the probability that you flip heads and roll a number less than 3? -
## Life Orientation

Are individuals empowered and do they understand their human rights or when their rights/the rights of others are being violated.Provide five reasons for your analysis and standpoint -
## college algebra

QUESTION 21 Condense the expression to the logarithm of a single quantity. ln310 + ln3x ln3(10 - x) ln310/x ln3(10 + x) ln310x ln310x -
## college algebra

QUESTION 25 The populations (in thousands) of Pittsburgh, Pennsylvania from 2000 through 2007 can be modele by where t represents the year, with t = 0 corresponding to 2000. Use the model to find the population in the year 2001. 2,418,774 2,419,774 -
## college algebra

QUESTION 14 The game commission introduces 100 deer into newly acquired state game lands. The population N of the herd is modeled by where t is the time in years. Find the populations when t=40. (Round your answer to the nearest whole number.) 1,442 deer -
## insurance

of 500 employees a firm 280 have a life insurance policy, 400 have a medical insurance cover and 200 participate in both programmes. what is the probability that a randomly selected employee will be a participant in at least one of the two programs (ii) -
## math help please

a plane intersects a square pyramid perpendicular to its base but not through a vertex.The plane forms a cross section what is the shape of the cross section a)trapezoid b)triangle c)square d)rectangle -
## math help please

a plane intersects a right rectangle prism perpendicular to its base .The plane forms cross section.What is the shape of the cross section? a)parallelogram,that is not a rectangle b)triangle,that is not equilateral c)trapezoid d)rectangle -
## math

a square pyramid is cut perpendicular to its base and through the vertex.What two-dimensional figure is formed by the cross section ? a)parallellogram b)rectangle c)square d)triangle -
## math

Find the height of the tree 27feet and 14feet what is the height of the tree to the nearest tenth -
## Chemistry

I need major help with balancing redox reactions. I can't seem to get this one: (in basic conditions) NBr_3(aq)=> N_2(g) + Br^-(aq) + HOBr(aq) I don't know how to split this up properly, and when I do it is like impossible to balance it. Thanks! -
## Math

integrate (x^2+8)/(x^2-5x+6) by partial fractions method. I first did long division, and came up with 1+((5x+2)/(x^2-5x+6)). Then I did partial fraction for (5x+2)/(x^2-5x+6) by going A/(x-3)+B/(x-2) and I got 17/(x-3)-12/(x-2) to take the integral of. But -
## math

integrate dydx=(4sqrt(y)lnx)/x. Check my answer? I got y=((2ln^2(x)+c)/2)^2. Is that right? -
## Math

integrate dy/dx=x(y^(1/2))(cos^2(y^(1/2))^2) I know I need to separate, and Iv'e moved dx to the right side with dy on the left. Don't know how to go on. -
## Trig Identities

Why does cos^2(x)= 1/2cos(2x)+1/2? I am trying to integrate, but the answer key says to first rewrite the expression like the above. I don't get how to change cos^2(x) into that. Explain? -
## Antidifferentiation

1. A stone is tossed upward with a velocity of 8m/s from the edge of a cliff 63 m high. How long will it take the stone to hit the ground at the foot of the cliff? Using antidifferentiation method, I got dv=-9.8dt. The I integrated and got -
## Math

use newton's method to estimate all real solutions of the equation x^3. I am having trouble coming up with a good guess. I went with x1=1, but that doesn't seem to be working. Any thoughts on which number should be the best first guess? -
## Math

The base of a pyramid-shaped tank is a square with sides of length 12 feet, and the vertex of the pyramid is 10 feet above the base. The tank is filled to a depth of 4 feet, and water is flowing into the tank at the rate of 2 cubic feet per minute. Find -
## Calc

The figure shows the graph of f(x)=xe^x, x greater than or equal to 0. figure: f(x) curve is drawn and under the max. point/ concave down curve there is an inscribed rectangle. with width from a(left) to b(right) and height up to a certain point of f(x). -
## Math

1. f(x)=x^2(e^x) find a point where the tangent is horizontal. The answer is apparently (-2, 4/e^2). But I got 0 when I solved for the derivative. I don't get this. 2. What value of x does the function f(x)=(x^3+27)^(1/2) have vertical tangents? My -
## math help please

if the pre image of a figure is located at (4,2) (-3,-3)(0,8) and it is reflected in the y-axis followed by a translation of 3 units left and 6 units down where is the new image locate give vertex coordinates -
## math

if the pre image of a figure is located at (4,2) (-3,-3)(0,8) and it is reflected in the y-axis followed by a translation of 3 units left and 6 units down where is the new image locate give vertex coordinates -
## math

write a single translation in algebraic notation for the following (x,y) (x-6,y+2) followed by (x,y) (x+3,y+1) -
## math

describe a single translation that would result from moving a figure,2 units left and 1 unit down then 5 units right and six units up -
## math

describe the single transformation that would be equivalent to a reflection over the y-axis followed by a reflection over the x-axis -
## Math

Find quadratic regressive equation for the following f' points; (x, f'(x)): (-4,74); (-3,39); -2,10; -1,-6; 0,-14; 1,-12; 2,0; 3,22; 4,55 It's something really complicated, and I'm later asked to find the original equation, which is a cubic function. Any -
## Math

1. 1. A police cruiser approaching a right-angled intersection from the north, is chasing a speeding car that has turned the corner and is now moving due east. When the cruiser is 0:6 miles north of the intersection and the car is 0:8 miles to the east, -
## Math

Use Newtons Method to find 13^(1/4) correct to four decimal places. I know the formula X_(n+1)= X_n - [f(X_n)]/[f'(X_n)]. I am not sure how to go on from there. I made the equation into y=X^(1/4), but I can't seem to figure out how to go on. Please help? -
## science

which of the following is the function of live -
## chem

solution of 0.148 M sodium iodide for an experiment in lab, using a 500 mL volumetric flask. How much solid sodium iodide should you add -
## Physics

A 100g piece of ice at 0 degrees celcius is placed into a container holding 200g of water, initially at temperature 25 degrees celcius. Heat flows from the water to the ice, cooling the water and melting the ice. Calculate a) how many moles of ice and how -
## Math

Solve the equation 2/3 O= n-3m -
## Algebra

paint express charge $30 per gallon of paint plus $1.10 per square foot of wall space. color creations charges $24 per gallon of paint plus $1.20 per square foot of wall space. robert estimates he will need four gallons of paint for the rooms he'd like -
## Science

I am writing a mock biotechnology research proposal for class and I don't know what I should make this research plan about. What are some of the most breaking scientific news, or diseases and issues in this field(biology preferred, or chemistry) that are -
## Math

A function has zeros of 5 and -1. If a horizontal translation is implemented, what is the least amount of transformation for both of the zeros to be positive integers? Is zero a positive integer? -
## math homework

Michael went into a comic book store to pick up a few of his “much wanted” comics. There are about 4 different Batman issues, about 5 different Star Wars issues, and about 2 different Superman issues to choose from. Exactly how many combinations are -
## Math

What is the ninth term of the following geometric sequence? a4=27 a7=64 a9= -
## Physics

At a given instant three electrons, in vacuum, happen to lie on a straight line. The first and second are separated by 3.00x 10-6 m, while the second and third are 8.00 10-6 m apart. What is the magnitude of the net electrostatic force on the middle -
## math

Standard soft drink cans hold 12 ounce or 355 milliliters of soda. Assume that soda can must be right circular cylinders. Through trial and error with cans of different sizes, find the dimensions of a 12-ounce can that has the lowest cost for materials. -
## Physics

An unstable nucleus with a mass of 18.0 ✕ 10-27 kg initially at rest disintegrates into three particles. One of the particles, of mass 4.1 ✕ 10-27 kg, moves along the positive y-axis with a speed of 8.0 ✕ 106 m/s. Another particle, of mass 7.7 ✕ -
## Physics

A 4.1 g dart is fired into a block of wood with a mass of 20.2 g. The wood block is initially at rest on a 1.2 m tall post. After the collision, the wood block and dart land 2.6 m from the base of the post. Find the initial speed of the dart. -
## saftet

I have 5 words theres 25 letters. About saftey. Etadprlbaselsspsfnniltria -
## math

if a car passes mile marker 2 in 4 hours and a mile marker 125 in 6 hours, how many miles per hour is the car traveling? -
## trigonometry

a surveyor 1standing on a highway observed the angle of elevation of the airplain as 22.5°. at the same time, a surveyor 2 observed the angle of elevation of the same airplane to be 30°. if the airplane was 850m directly above a point on the highway, -
## math

If a plant grew 1 1/4 inches in one month. If the plant grows at the same rate, how many inches will it have grown at the end of 3 1/2 months? -
## finance

the joseph company has a stock issue that pays a fixed dividend of 3.00 per share annually. Investors believe the normal rik-free rate is 4 percent and that this stock is 14 percent,and that this stock should have a risk premium of 6 percent -
## math

4.5 by 6.12 original drawing want to increase size to 18 by 24. How do I do it? -
## Math

Solve the equation: 4/3y+5/2y = 1 -
## algebra

Simplify and show steps: 5x^2/x^3-x^2 -
## Math

How do I simplify -4(-5x-u)-2(3u-2x) -
## Math

what is -4 (-w+4x-2)? -
## Math

what is 5 - / 8 6 -
## statistics

in a positive skewed distrubtion with a mean (average) of 100 and median of 90 is What? -
## Stats

Need help finding the area under the normal curve between z = -1.0 and z = -2.0? -
## chemistry

There are two different oxides of copper produced as a result of this reaction. They are copper(I) and copper(II) oxide. If copper is changed to copper(I) oxide the percentage changed in mass is 12%. If copper is changed to copper(II) oxide the percentage -
## math

3/8 of a box contains 18 crackers how many crackers are in a box