Jomo oh Jomo yo my zero, whoops hero !!
Type: Posts; User: Denis
Jomo oh Jomo yo my zero, whoops hero !!
Ya made zee typo Halls...
aNUTter way:
x^2 + y^2 = 5 [1]
y - x = 3 [2]
[2]^2 : x^2 - 2xy + y^2 = 9 [3]
Subtract [1] from [3] : xy = -2
WHY do you say it's "wrong"?
Havva look:
http://www.wolframalpha.com/input/?i=log(10)%5E5%2Flog(10)%5E2%3Dlog(10)%5Ex
Did you make that up?
If not, is it the original problem IN FULL?
What do you mean with "simultaneous quadratic equations"?
After substituting (as per Jomo's post), you'll end up
with a 4th...
http://mathonweb.com/help_ebook/html/equations_1.htm
VERY good idea :rolleyes:
Yer correct Doc: should be the parallel sides.
He made same goof here (but corrected it):
http://mathhelpforum.com/geometry/280461-triangle-trapeze-problem-pls-help.html
1st one looks like:
B = A - 3
A = B/2 + 6
No idea about the 2nd; seems that number 1201 is involved...
Betya a Canuk Toonie answer is 921.375:rolleyes:
1950*.081/360*30 would be the monthly payment (if such is the arrangement)
which means 1950 would still be due after 70th payment.
"We went over a lot in class and I can't find my notes for this"...
Agree...but this one is "close":
11 / 14 = .7857142....
pi * 14 / 56 = .7853981....
Just another "badly written problem":confused:
A simple diagram = 1000 words!
p = plane speed, w = wind speed
(@p-w)..............876...............>2 hr : clearly p-w = 876/2
1.5 hr<..............876..............(@p+w) : clearly p+w =...
Hint: n(n+1)/2
In that sequence, n = 5
5(5 + 1) / 2 = 15
x = 3 + 5 + 9
x = ?
3 + 5 = 8
x = 8 + 9
x = 17
Get my drift? :p
7 21 63 189 : sum = 280
a = 1st term = 7
r = ratio = 3
n = number of terms = 4
sum = a(r^n - 1) / (r - 1) = 280
HOKAY?
Work what out?
2,6,18,54,162 is also a geometric sequence.
Hint: S = 15 - L
Changing r and i to a and b, k and s to x and y.
Problem rewritten this way:
We have the weights of two ingredients:
weight of ingredient 1 = a grams and weight of ingredient 2 = b grams.
...
Deal!!
It did not turn into a ten:
9 = a-1
Sally sure earns a lotta money: got her phone number?
Rpi = ?
I miss my ex....but my aim is getting better :p
Change Zs to a, Ze to b, c2 to c, r2 to r and R1*C1 to d
So equation becomes:
a = b + (d + r*c*L) / 1000
Then:
(d + r*c*L) / 1000 = a - b
d + r*c*L = 1000a - 1000b
Take over: solve for L,...
Jomo, this thread will without fail make you the winner of the
"2018 most confusing thread award" :p