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Heather

Questions (683)

Suppose that the gravitational acceleration on a certain planet is only 3.1 m/s2. A space explorer standing on this planet
1. 2 answers
2. 2,733 views
first founded as a parent cooperative, is/are one of the best examples of successful early childhood school-family partnership.
1. 1 answer
2. 348 views
-7(2a2-4) Multiply
1. 2 answers
2. 446 views
A car is stopped at a traffic light. When the light turns green, the driver accelerates so that the car is going 10 m/s after
1. 2 answers
2. 4,132 views
Does the engine of a Cessna 162 have an alternate air source? How many fuel pumps does the Cessna 162 have? Your help is very
1. 1 answer
2. 457 views
Use two commas around “extra information” in a sentence to show that it is not important to the meaning of that sentence if
1. 1 answer
2. 431 views
7. Have you personally or professionally noticed any changes in the way health care information or services are researched or
1. 1 answer
2. 517 views
Complete the following word problems.14.It takes 9 hours for Isabella to rake leaves by herself,but her brother Matthew can work
1. 2 answers
2. 638 views
What are the healthcare applications of biochemical, pharmaceutical and diagnostic chemical reactions?
1. 1 answer
2. 505 views
Let G be the region in the first octant that is inside both the cylinders x^2+y^2=1 and y^2+z^2=1. Use a triple integral to
1. 3 answers
2. 394 views
The following parametric equations describe a portion of a shperical surface:x=4cosusinv y=4sinusinv z=4cosv where 0<=u<=pi/4
1. 0 answers
2. 379 views
Find the arclength of y=x^3/3+1/(4x) from 1 to 2. I know that arclength is the integral from 1 to 2 of the sqrt of (1 +
1. 1 answer
2. 393 views
monica spent 8/13 hours listening to tapes of beethoven and brahms. she spent 2/5 hours listening to beethoven. how many hours
1. 1 answer
2. 1,592 views
A man seeking to set a world record wants to tow a 122000-kg airplane along a runway by pulling horizontally on a cable attached
1. 2 answers
2. 667 views
A rescue helicopter is lifting a man (weight = 797 N) from a capsized boat by means of a cable and harness. (a) What is the
1. 0 answers
2. 598 views
What is the exact value of tan(s+t) if sin(s+t)=56/65. And cos(s)=5/13 and sin(t)=4/5. Everything is in the first quadrant
1. 1 answer
2. 376 views
A batter hits a ball 3 feet from home plate along the path x=69t, y=3+40t-16t^2. How long is the ball in flight and how far does
1. 1 answer
2. 714 views
which is a better buy an square pizza that is 8"x8" and cost $10 or a round pizza that is 9" in diameter for the same price?
1. 1 answer
2. 371 views
A ball starts from rest and rolls down a hill with uniform acceleration, traveling 150 m during the second 5.0 s of its motion.
1. 1 answer
2. 1,353 views
Find the equation of the plane that passes through (1,0,0) and is perpendicular to the line r=<1,0,2>+t<1,0,1>. The vector
1. 0 answers
2. 444 views
1)Why is enzymatic catalysis essential for life? Describe in detail the mechanism for enzyme mediated anabolic and catabolic
1. 1 answer
2. 476 views
Let L be the line that passes through the points (0,1,6) and (0,3,2). Find the length of the projection of k=<0,0,1> on the line
1. 0 answers
2. 425 views
Let L be the line that passes through the points (0,1,6) and (0,3,2). Find the length of the projection of k=<0,0,1> on the line
1. 1 answer
2. 406 views
Let u=j+k and v=i+jsqrt2.a) Calculate the length of the projection of v in the u direction. b) Calculate the cosine of the angle
1. 2 answers
2. 388 views
solve the following exponential equatione^x-4=-e^-x when I work i get x-In(u) is this correct
1. 1 answer
2. 389 views
use the properties of logarithms to condense the logarithmic expression. write the expression as a single logarithms whose
1. 1 answer
2. 572 views
solve the inequalitye^x+e^x-x=6 can you show work
1. 3 answers
2. 408 views
solve the logarithmic equation. Be sure to reject any value of x that is not in the domain of the orginal logarithmic
1. 3 answers
2. 528 views
chane the logarithmic expression to an equivalent expression involving an exponentlog416=x **the 4 is supposed to be dropedd
1. 1 answer
2. 867 views
find the inverse of the following function. find the domain, range and asymptotes of each.f(x)=In(x+1)+1 please show work.
1. 1 answer
2. 387 views
answer the following for the given quadratic function.f(x)=x^2+x^2-8 a. what is the vertex (h,k) of f? (h,k)=? simplify your
1. 9 answers
2. 760 views
the function f is defined as the followsf(x)={x+6 if -5 less than or equal to x < 1 {9 if x = 1 {-x+5 if x > 1 a. find the
1. 2 answers
2. 600 views
solve the following inequality15x-16 less than or equal to 15/x is the point x=0 included in the solution set of the inquality?
1. 1 answer
2. 1,060 views
find the function that is finally graphed after the following transformations are applied to y=square root x in the order
1. 1 answer
2. 1,100 views
for the function f(x)=5/x+4, find the average rate of change of f from 1 to x.please show work
1. 1 answer
2. 373 views
graph the following function using transformations. Be sure to graph all the stages on one graph. state the domain and range.y=
1. 1 answer
2. 601 views
given the following piecewise functionF(x)={x+11 for -9¡Üx<-3 2 for -3¡Üx¡Ü2 2x-6 for 2<x¡Ü5 {--this symbol is to be
1. 1 answer
2. 762 views
find an equation for the line with the given properties. express the equation in slope-intercept form containing the points.P=(-
1. 0 answers
2. 507 views
find the distanced(p_1&P_2) between points P_1 and P_2. P_1=(4,-5) and P_2=(3,4)plz show work
1. 0 answers
2. 918 views
I can get part of the answer then I get stumped.find the center and radius of the circle, Write the standard form of the
1. 1 answer
2. 590 views
a circle has the equationx^2+y^2+6x-6y-46=0 find the center and the radius of the euation. If there are any intercepts list
1. 1 answer
2. 792 views
write the standard form of the equation and the general form of the equation of the circle with radius r and center (h,k)r=10;
1. 1 answer
2. 1,035 views
If (a,-12) is a point on the graph of y=x^2+7x, what is a?please show work
1. 0 answers
2. 781 views
Plot the points and determine the slope of the line containing them.(-7,-4)(8,-4)
1. 0 answers
2. 362 views
For each of the following, state (using symbols) the null and alternative hypotheses.a. Is the mean IQ of a sample of 60
1. 0 answers
2. 537 views
In a chocolate chip cookie investigation, you decide to compare two cookie sources. Source 1: Mom mails to you a package
1. 0 answers
2. 1,047 views
You wish to test whether or not a coin is fair, so you toss it 400 times and obtain 220 heads. Test the null hypothesis that the
1. 0 answers
2. 507 views
You suspect that, on the average, professional baseball players are older than professional football players. A random sample of
1. 0 answers
2. 520 views
An apple grower is trying to produce larger fruit by using a new fertilizer. The usual fertilizer produces fruit with a mean
1. 0 answers
2. 485 views
Assume that the population is normal. A sample of size 100 is taken. The resultant sample data has a mean of 48 and a standard
1. 1 answer
2. 544 views
An automotive engineer wants to use 64 test runs to estimate the true mean tire stopping distance. The standard deviation is
1. 0 answers
2. 391 views
17. The Student Health Service assumes, based on historical data, that the height of female students is normally distributed
1. 0 answers
2. 484 views
use the given zeros to find the remaining zeros of the functionh(x)=x^4-9x^3+12x^2+138x-1360 zero:3-5i enter the remaining zeros
1. 3 answers
2. 1,848 views
In designing an experiment, a psychologist is willing to assume that the underlying distribution for the time to learn a list of
1. 1 answer
2. 512 views
A power company takes a random sample of its delinquent account files. For 400 accounts, the average delinquent amount was
1. 1 answer
2. 430 views
A random sample of 100 cans of peaches has an observed mean weight of 48.5 ounces and a standard deviation of 2.4 ounces.
1. 1 answer
2. 577 views
A candy machine distributor collects the coins from 100 machines. The standard deviation is $3.25. With probability 98%, what is
1. 2 answers
2. 390 views
The following function has a series of the form the sum from n=0 to infinity of c(subn)x^n. Calculate the coefficients c(subn)
1. 2 answers
2. 1,156 views
The function ln(x-1) can be expressed as a Taylor Series of the form sum of c(subn)(x-2)^n. Calculate the formlua for c(subn).
1. 1 answer
2. 382 views
Calculate c(sub0), c(sub1), c(sub2), c(sub3), and c(sub4) for the power series the sum from n=0 to infinity of c(subn)x^n that
1. 1 answer
2. 579 views
change the exponential expression to an equivalent expression involving a logarithm.1.9=a^6 a=1.1129 is this the correct
1. 1 answer
2. 642 views
find the f and g, so that fOg= HH(x)=sqrt x^2+17 please show work
1. 0 answers
2. 390 views
find the domain of the composite function fog.f(x)= 2/x-3; g(x)= 7/x please show all work.
1. 0 answers
2. 530 views
solve the following exponential equation. use exact answers only.not sure how to put it into the equation but it is 2 then 1-9x
1. 1 answer
2. 577 views
form a polynomial f(x) with real coefficients having the given degree and zeros.Degree 4; zeros:-3 +5i; 2 multiplicity 2 enter
1. 2 answers
2. 5,208 views
solve the following inequality70x-51<70/x I get this--but I do not know how to write the final answer in a solution set
1. 2 answers
2. 682 views
Solve the inequality algebraically11x-3¡Ý-4x^2
1. 2 answers
2. 477 views
Form a polynomial f(x) with real coefficients having the given degree and zeros.degrees 5; zeros 1; -i; 7+i please show all
1. 0 answers
2. 499 views
find the complete zeros of the polynomial function. write f in factored form.f(x)=x^3-7x^2+25x-39 please show all work. I do not
1. 4 answers
2. 808 views
Find the limit as x approaches infinity of (1-(1/(2x)))^(2x).
1. 6 answers
2. 741 views
integral from 1 to infinity 4/(x^2)(x^2+1)dx
1. 0 answers
2. 258 views
integral from 0 to infinity of 1/(pi^2+x^2)^(3/2)dx
1. 1 answer
2. 350 views
Describe what is happening in regards to the heat energy, temperature, molecular potential energy, and molecular kinetic energy
1. 1 answer
2. 648 views
male heights are normaly distributed with a mean of 70 and a standard deviation of 2.8 inches. for two randomly selected guys,
1. 1 answer
2. 428 views
The pressure P of a gas is related to its volume V by the formula P=k/V where k is a constant. A quantity of gas with an initial
1. 1 answer
2. 586 views
6. You are considering an investment in a one-year government debt security with a yield of 5 percent or a highly liquid
1. 0 answers
2. 439 views
the integral from 0 to 1/4 of arcsin(x^(1/2))dx.
1. 2 answers
2. 363 views
If you have 1.80 moles of H2, how many gram of NH3 can be produced?
1. 1 answer
2. 1,191 views
Solve the differential equation:dy/dx = y^2 + y
1. 1 answer
2. 505 views
Solve the differential equation:dy/dx = y^2 + y
1. 0 answers
2. 369 views
You want to determine the heat generated in a gas-producing reaction. Is this possible? If so, describe the design of such a
1. 0 answers
2. 411 views
Explain the domestic problems confronted by the United States during World War I.
1. 1 answer
2. 380 views
Assuming that the gases are ideal, calculate the amount of work done (in joules) in the following reaction. Is work done on or
1. 0 answers
2. 1,097 views
Does the pressure exerted by a gas depend on its molar mass?
1. 0 answers
2. 326 views
How much greater is the energy of a photon of ultraviolet radiation (λ = 3.00 × 10-7 m) than the energy of an average photon
1. 1 answer
2. 1,506 views
Hydrogen gas was collected over water in a eudiometer at 26 degrees celcius when the atmospheric pressure was 756 mm Hg. What
1. 3 answers
2. 3,062 views
find the integral of x/(x^2+4)dx using trigonometric substitution.
1. 2 answers
2. 570 views
Evalute the integral of x/(x^2+4)dx using u-substitution and then trigonometric substitution. I did this and got
1. 1 answer
2. 1,332 views
The combustion of 0.0222g of isooctane vapor, C8H18(g), at constant pressure raises the temperature of a calorimeter 0.400
1. 3 answers
2. 1,848 views
E(V) for half reaction 3N(-1/3) -> 3 N(0) + e-
1. 0 answers
2. 288 views
Write the balanced chemical equation for the decomposition of sodium azide. If this is a redox reaction, show half reactions and
1. 1 answer
2. 3,347 views
integral of sinh(p*ln(x/xsub0))dx
1. 1 answer
2. 344 views
Find the derivative of ln(x+(x^2-1)^(1/2)).
1. 2 answers
2. 373 views
Find the integral of sinh^2(x)dx.
1. 1 answer
2. 616 views
Find the derivative of ln(arccoshx)
1. 3 answers
2. 338 views
Find the integral of acrsinhxdx
1. 2 answers
2. 304 views
From my previous question about partial pressures in the equation 2H2(g)+O2(g)>2H2O(g), how can I use PV=nRT to find the number
1. 1 answer
2. 478 views
A chemist is preparing to carry out a reaction at high pressure that requires 36.0 mol of hydrogen gas. The chemist pumps the
1. 2 answers
2. 1,674 views
A 5.00L reaction vessel contains hydrogen at a partial pressure of 0.588atm and oxygen gas at a partial pressure of 0.302atm.
1. 1 answer
2. 1,127 views
integral of xarctanxdx using integration by parts.
1. 3 answers
2. 1,161 views

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