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by ironape
Wed Jan 27, 2010 6:03 pm
Forum: Statistics
Topic: Frequency distribution chart
Replies: 1
Views: 3343

Frequency distribution chart

Can someone point me in the right direction to get the chart made? The materials i was given dont make much sense to me. You are the production manager for an operation that produces circuit boards. Each board is tested at the end of the manufacturing process. Rejected boards are discarded and have ...
by ironape
Mon Nov 09, 2009 9:31 pm
Forum: Advanced Algebra ("pre-calculus")
Topic: Log question: 6^3 = 216; answer: log_6(216) = 3
Replies: 1
Views: 4260

Log question: 6^3 = 216; answer: log_6(216) = 3

Problem: 63 = 216

Answer: log6(216) = 3

My question is... does it have to be log6(216) = 3 or can it be 3 = log6(216). Does it matter if the = 3 / 3 = comes first or last?

I dont want to get it wrong because it was formatted backwards. Does that make sense?
by ironape
Fri Oct 30, 2009 3:46 pm
Forum: Intermediate Algebra
Topic: distance between points
Replies: 3
Views: 1007

Re: distance between points

I couldnt show the square root. Thanks for the tip.

so exponents then addition.
by ironape
Fri Oct 30, 2009 1:33 pm
Forum: Intermediate Algebra
Topic: distance between points
Replies: 3
Views: 1007

distance between points

This really isnt a question on how to do it but more of a rules thing. Do I add the squared numbers together before before multiplication or do I sqaure them individually then add? See below for the examples. c. The distance between the points (1,4) and (19,6). d = (x2 - x1)² + (y2-y1)² d= (19 - 1)²...
by ironape
Thu Oct 29, 2009 5:32 pm
Forum: Intermediate Algebra
Topic: point on the x-axis
Replies: 1
Views: 728

point on the x-axis

The point on the x-axis that is equidistant (equal distance) from (12,6) and (8,2).

Im not sure what i need to do to solve this. Do i need to run the distance formula? midpoint formula?

Can someone point me in the right direction as I cant find a example of how to solve this anywhere.

Thanks
by ironape
Thu Oct 29, 2009 3:51 pm
Forum: Beginning Algebra
Topic: perpendicular through coords
Replies: 1
Views: 998

perpendicular through coords

My math skills are really rusty so if i could get someone to check this answer I would appreaciate it. A line that passes through (1, 1) and is perpendicular to the line 3x+4Y=12. 3x + 4y = 12 <----convert to y = mx + b 4y = -3x +12 (4/4)y = (-3/4)x + (12/4) y = -3/4 + 3 Now we know that m1 = -3/4 s...
by ironape
Thu Oct 29, 2009 1:00 pm
Forum: Beginning Algebra
Topic: Find the equation
Replies: 5
Views: 1529

Re: Find the equation

A line that passes though the points (2,4) and (8,16)

would you solve this the same way?

find the slope with m=(y2-y1)/(x2-x1)

then use (2,4) as (x,y)

solve for b?
by ironape
Wed Oct 28, 2009 8:54 pm
Forum: Beginning Algebra
Topic: Find the equation
Replies: 5
Views: 1529

Re: Find the equation

OK so I gather they are both wrong.

is this how I would find the equation?

A line that passes through (6,2) and has a slope of 2.

y = mx + b

2 = 2(6) + b <---substitue x=6, y=2
2 = 12 + b
(2-12) = (12-12) + b <---subtract
-10 = b

2 = 2(6) - 10
2 = 12 - 10
2 = 2

answer: y = 2x -10???
by ironape
Wed Oct 28, 2009 8:14 pm
Forum: Beginning Algebra
Topic: Find the equation
Replies: 5
Views: 1529

Find the equation

Find the equation for each of the following items below: 1. A line that passes through (6,2) and has a slope of 2. y = mx +b Slope = 2 so y = 2x + b y = 2 from (6,2) 2 = 2x + b Need to find the y intercept so I substituted 0 for x and got: 2 = 2(0) + b 2 = b answer: y = 2x + 2 2. A line that passes...
by ironape
Mon Oct 26, 2009 2:08 pm
Forum: Beginning Algebra
Topic: Solving an equation with 3 undefined variables
Replies: 2
Views: 1171

Re: Solving an equation with 3 undefined variables

Thank you very much

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