Mark M.

01/20/16

Coordinate Geometry

1. Find k if the following sets of lines are concurrent: y = x – 1, y = 2x + 1, y = kx + 22.Triangle formed by the lines y = x + 3, y = 3 – x and y = 2x + 6 is right-angled. b. Find the area of... more

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College Algebra Word Problems

01/19/16

What is the speed of the boat in still water?

A boat travels 20 kilometers upstream in the same time that it would take the same boat to travel 30 kilometers downstream. If the rate of the stream is 5 kilometers per hour, find the speed of the... more

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Sequences

01/19/16

Sequence generators

1,1,2,3,5,8

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Geometry Triangle Altitude

01/19/16

An equilateral triangle's altitude is v15 - what's the length & perimeter?

I came across this problem and got very stuck. I'd appreciate a response from you.

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Algebra Equations

01/18/16

Solve: (2^x+3) - (2^x) = 56

Can you include steps as well?

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College Algebra Word Problems Temperature Readings

01/17/16

College Algebra Word Problems. NEED HELP BAD.

I'm in College Algebra and our lesson is on word problems. It's due tomorrow and I can't fully understand how to set up the equation. help me, please. Question: A patients temperature was taken at... more

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Word Problems

01/17/16

Nick's telephone company charges 0.04 per minute for weekends 0.07 per minute for calls made on weekdays. Nick was billed for 513 min The charge was $30.39.

The number of weekend minutes used was ___ The number of weekday minutes used was ___

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Other

01/17/16

Translate into symbolic form

It will not rain tomorrow

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Math

01/17/16

Find the polynomial which when divided by 4x^2 yields 3x^3+4×^2-3 as the quotient

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Math Problem

01/17/16

lim-(x?8)??(x+vx)/(3x+2vx+1)?

lim-(x→∞)??(x+√x)/(3x+2√x+1)?

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Word Problem

01/17/16

if 20%of a=b then b%of 20 is the same as

please expalin me

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Math

01/17/16

x% of y is y%of ?

please explain me

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Math

01/16/16

Robert, George and Edwin are requied to make 1650 articles in the ratio 5:8:9 /

a) How many articles are Robert and Edwin supposed to make respectively? b) If they earn 65 cents per articles, how much will George receive? c) If peter is asked to help to make 125 articles for... more

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Other

01/16/16

one number is 4 more than another number. Four times the smaller number is three less than three times the larger number.

what does this mean?

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Calculus Limits Derivatives

01/16/16

Let f(x)= x^1/2. Find f'(9) using the definition f'(a)=limex->a f(x)-f(a)/x-a

I am stuck can you please help? So far I have limx->9√x-√9 x -9 =x(x^-1/2)-(3/x) ... more

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Calculus Chain Rule Derivatives

01/16/16

Using chain rule and product/quotient rule, find derivative of sin(3x^2)/x when x=(squareroot of pi)

sin(3x^2)x^-1 this is how far I got. when do I sub in √pi ? what do I do next?

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Math Calculus 3

01/16/16

Find the center and radius of the sphere for this equation x2+12x+y2-18y+z2+16z=-132

Find the center and radius of the sphere for this equationx2+12x+y2−18y+z2+16z=−132

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Calculus Derivatives Limits And Derivatives

01/16/16

The expression f(a+h)-f(a)/h is called the

a)instantaneous rate of change of f at a b) difference quotient of f at a c)definition of f'(a) d)secant line of f at a I tried a) and c) but they're wrong. What is it supposed to be?

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Functions

01/16/16

need help with functions

Is f(x)=2-5x^2 correct when f(root of 2) - f(1)=-5

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Precalc/trig/calc

01/15/16

Arccos(16x)=arcsec(x) solve for x?

I just don't have any idea how to go about this

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Equations Inverse Functions

01/14/16

What would the inverse equation be?

The equation is 3^x+5 and have to find the inverse :( p.s is this possible on graphing calculators?

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Linear Equations

01/14/16

Linear Equation

Assume that the line passes through the point (1,−1) and is parallel to the line through the points ( −4,−6) and (5,−5).Find the equation of this line in slope intercept form.

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Math Help

01/14/16

how to find the orthocenter given three points (3,-2), (5,6),(9,-2)

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Algebra 2 Algebra Algebra Word Problem

01/14/16

Rational equations algebra 2 word problem

Hardy can wax his Triumph TR3 in 4 hours when working alone. If Ellie helps him, the job takes only 3 hours. How long would it take Ellie by herself?

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Algebra 2 Algebra

01/14/16

Solve for X. Express answer as a simple fraction in lowest terms

p+x/x-2=a/b

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Coordinate Geometry

What is the speed of the boat in still water?

Sequence generators

An equilateral triangle's altitude is v15 - what's the length & perimeter?

Solve: (2^x+3) - (2^x) = 56

College Algebra Word Problems. NEED HELP BAD.

Nick's telephone company charges 0.04 per minute for weekends 0.07 per minute for calls made on weekdays. Nick was billed for 513 min The charge was $30.39.

Translate into symbolic form

Find the polynomial which when divided by 4x^2 yields 3x^3+4×^2-3 as the quotient

lim-(x?8)??(x+vx)/(3x+2vx+1)?

if 20%of a=b then b%of 20 is the same as

x% of y is y%of ?

Robert, George and Edwin are requied to make 1650 articles in the ratio 5:8:9 /

one number is 4 more than another number. Four times the smaller number is three less than three times the larger number.

Let f(x)= x^1/2. Find f'(9) using the definition f'(a)=limex->a f(x)-f(a)/x-a

Using chain rule and product/quotient rule, find derivative of sin(3x^2)/x when x=(squareroot of pi)

Find the center and radius of the sphere for this equation x2+12x+y2-18y+z2+16z=-132

The expression f(a+h)-f(a)/h is called the

need help with functions

Arccos(16x)=arcsec(x) solve for x?

What would the inverse equation be?

Linear Equation

how to find the orthocenter given three points (3,-2), (5,6),(9,-2)

Rational equations algebra 2 word problem

Solve for X. Express answer as a simple fraction in lowest terms

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