For Grade 12

120. use a half angle identity to find the exact value- sin(75 degrees)

130. What is the difference between monopoly and monopolistic market?

148. Could you please explain me the law of reflection?

311. find the greates common factor of 98, 182, 637

351. Using the quadratic equation formula, kindly solve: x2 - 5x = 14

405. If G(x)=x^2+1 find and simplify G(x+h)-G(x)/h

476. Simplify: 77(sqrt 5x^3)-27(5x^3)

514. -3k/2+(9k-5)/6=(11k+8)/k I need to solve for k.

559. A farmer wants to get subsidies from the U.S. government. The government requires hat the farmer use his land to grow the following crops: corn, soybean, and wheat according to the following percentages: Corn 45-50% Soybeans 25-30% Wheat 22.5-27.5% Plot a graph of the feasible region from this data, finding all six corner points.

634. indefinite integral of sqrt(3-2x)dx

720. the derivative of (e^x - e^3x)^2

885. Use the definition of derivative to find f(x)=1-x^2

945. Solve the equation 1=1/1-a + a/a-1

1068. power rule explanation of 2 square root x^3

1118. if 8% is compounded semiannually what is the rate per compound

1150. help me solve this, solve the system equations by graphing (x+y=2 and y-x=2)

1213. x/ x^2+5x+6 - 2/x^2+3x+2

1226. solve the system of equations by elimination 7x-5y = 2 7x-5y =-5

1254. Write an equation fot the tangent line of the curve -2y^3+5xy=-2x+12 at the point where y=1.

1351. what percentage of people in the united states rate themselves as very happy?

1352. How do you change an equation that has respect to x to have respect to y?

1426. help me solve this problem...6(x+4)^2=30

1455. Implicitly differentiate the equation to find dy/dx x^3+y^3= 2x^2y^2+1

1507. given: f(x)=x^4-3x^3+2x^2-7x-11 find all roots to the nearest 0.001

1519. Does the Electoral College provide the United States with more benefits or more costs?

1536. evaluate arccot(1/sqrt3)

1596. Help me solve this alegbra problem: ((1)/(x-5)) +10=((x)/(x-5))

1643. write a general linear equation for the line that passes through the points (1,1) and (2,1).

1713. let f(x)=(2x-pi) ^3 +2x-cosx. the value of modulus of d/dx of f inverse of x when x= pi is

1722. X^3 - x^2 lessthan equal to 1

1763. Determine whether the function f(x)=-x^2-4x+4 has a maximum and minimum

1782. 2/3 of 1/6 of 3/4 of a number is 12

1788. (x+7)(x-1)=(x+1)^2 how to solve

1843. Identify the center and radius -6x+y^2=-x^2-146+2y(square root of 141)

1873. what is 3[f(x+2)] if f(x)=x^3+2x^2-4?

1947. If x^2 y^2=2, find an expression for y.

1947. If x^2 y^2=2, find an expression for y.

1967. Help me solve this math problem: 5/x-3 - 2/x^2-9

1972. lim (3x+2)/(4x) as x approaches infinity

1982. Lim approaches infinity. The square root of x+9-3, all divided by x

1985. how to prove that the integral (lnx)^n [eval @ 0 to 1] equal (-1)^n*!

2008. x^2+x-20>0 I need help find solution set for the linear inequalities.

2017. differentiate y=2x/1-3x^2

2081. What is the period that corresponds to a frequency of 53.1 Hz? Answer in units of s

2091. If the line 3x-4y=0 is tangent in the first quadrant to the curve y=x^3+k, then k is

2092. The derivitive of (x)times the square root of (x^2 +1)

2092. The derivitive of (x)times the square root of (x^2 +1)

2115. How to do rational equations and radical equations

2133. Help me understand this Calculus problem: When an object is placed at a distance p from a convex lens having focal length 6 cms, then the image will be at a distance q from the lens while 1/6=1/p+1/q. Find the rate of change of p with respect to q.

2145. Find the root of X^2-19x-42

2292. How many grams of calcium flouride are in 800mL of a 0.62 M calcium flouride solution?

2317. find a polynomial of degree n that has the given zeros x=-2,4,7 n=3

2489. Need help performing a statistical hypothesis test

2489. Need help performing a statistical hypothesis test

2566. (5.9x^3+3.4^2-7)-(2.9x^3-9.6x^2+3)

2593. A fair coin is tossed five times. Find the probability of obtaining one head and three tails.

2714. FIND THE SUM in normalised floating print representation 0.215642E04 + 0.146521E05 + 0.233416E06 2714. FIND THE SUM in normalised floating print representation 0.215642E04 + 0.146521E05 + 0.233416E06 2714. FIND THE SUM in normalised floating print representation 0.215642E04 + 0.146521E05 + 0.233416E06

2720. y=x2 how to find tangent line with points (-4,16)

2765. Please help find sin2x for secx = -5, for pi < x < 3pi/2

2769. If m<1 + m<5 = 100 Find the measure of m<8

2781. Find the area of a circle with radius 19.4 m to the nearest tenth. Use 3.14 for Pi.

2829. Find the lim as x aproaches delta (D) x of: (x+Dx)^2-2(X+Dx)-(X^2-2x)?

2830. how does the ionoshpere help in the transmission of radio waves?

2914. 4(negative3x+1)=negative10(x-4)-14x

2938. (inverse sin) sin power -1 (-1/2) exact value

3008. What is integration?

3057. what is a good thesis for welfare from an economic perspective?

3115. I need help simplifying the expression 1-2cos^2x+cos^4x

3122. 9x^2+36x+y^2-6y+9=0 help solve please

3161. Help me solve this problem csc*cos^2/1+csc

3193. How do I factor: sec^4x+sec^2xtan^2x-2tan^4x?

3207. find the exact value: (tan 325 - tan 25)/(1+ tan325tan25)

3379. Test for convergence or divergence using the geometric series test for the sum of 5(-1/5)^n from n=0 to infinity.

3387. If a package of lables costs $25.00 and there are 1250 lables in the package, how much would 20 lables cost?

3478. It was proven during the previous lecture that 1+2+3+....+n=[n(n+1)]/2. Using that result, find the sum of all 3-digit palindromes: a palindrome is a number that can be written as ABA, where 1=

3502. divide f(x) by d(x) in polynomial form and fraction form if f(x)=x2-2x+3; d(x)=x-1

3517. The whole is 5000 and the part is 10. Find the percent.

3562. find an equation for the hyperbola vertices (3,0),(3,4) asymptotes:y=2/3,y=4-2/3x

3617. Intergration Problem: d/dx (1-3x to 1 u^3/1+u^2 du )

3627. Help me understand this precalculus problem cos^2A (sec^2A-1)

3647. consider the differential equation dy/dx=2x-y. Find (dy)^(2)/(dx)^(2) in terms of x and y.

3676. help me solve this math problem 59n over 99 times 80 over 33n

3714. why is the fangtooth fish important?

3718. 10h=8h+6 solve and check

3801. I need some help with showing exponential growth on a graph and some other functions

3847. help me solve this problem p(x)= 1/8(2x4+3x3-16x-24)2

3851. Combine like terms. 5b + 7 + 7b - 6

3852. The sum of the first n terms of a GP is 2^(n+1). Find the first term and the common ratio.

4074. Consider this data sequence: \\\"fish bird reptile reptile bird bird bird mammal fish\\\". There is a CONSECUTIVE REPETITION of length 3 (the three consecutive birds) and a CONSECUTIVE REPETITION of length 2 (the two reptiles). There are also several SINGLETONs of length 1 (a singleton fish, a singleton bird, a singleton mammal, and another singleton fish). Write some code that uses a loop to reads in a sequence of words, terminated by the \\\"xxxxx\\\". The code assigns to t the number of CONSECUTIVE REPETITIONS that were read. (For example, in the above data sequence that value would be 2.) Assume that t has already been declared but not initialized. Assume that there will be at least one word before the terminating \\\"xxxxx\\\".

4090. why are alkenes and alkynes considered to be unsaturated hydrocarbons and not saturated?

4427. which is more dangerous alternating current or direct current

4500. correct this sentence. What you do not know, is that your son, Kiowa, has been killed in war.

4538. f(x)=3x^2+2x-1,evaluate f(a+h)-f(a)/h

4570. A player kicks a football an angle 23 deg to the horizontal with a speed of 12.5m/s. The receiver runs towards the ball at a constant speed to just intercept the ball at ground level. How fast must he run?

5292. please explain how to do it also

5369. Implicit differentiation of (tan)^3(xy^2+y)=x

5384. How do I verify this equation?

5544. Use the half-angle formula to simplify the expression: sqrt(1+cos 4x/1-cos 4x)

5586. F(x)=ln(x-4) Domain? Range? Asymptote?