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Reiny
Questions (36)
Ms. Sue was a kind, gentle, and good person that I had the privilege of knowing through this webpage. I have been a tutor for
83 answers
4,583 views
Peter, I found your question interesting and have been messing with it for a while
www.jiskha.com/questions/1789041/Ethel-went-to
3 answers
909 views
take a look at this question
http://www.jiskha.com/display.cgi?id=1446147947 Am I guilty of overkill or over-thinking this ?
3 answers
784 views
Please settle on one name
1 answer
160 views
re
http://www.jiskha.com/display.cgi?id=1368707176 I have a solution, but what a mess. Before I type it all out, let me know if
2 answers
461 views
have been looking at your post ...
http://www.jiskha.com/display.cgi?id=1357047578 interesting question... let the altitude of 12
5 answers
627 views
I took some time to work out your rather "nasty" Calculus question.
Take a look at it and see if it matches your expected result.
0 answers
1,092 views
Several student tonight have asked me how I create the √ symbol
to create √ symbol on a PC, hold down the Alt key, and at the
6 answers
900 views
You now have 6 different posts going for the same "cake question"
I am not going to keep going back to see which one you replied
6 answers
713 views
Please do not add your new question as a response to somebody else's post.
click on "Post a New Question" above to post your
0 answers
685 views
Happy Pi Day to all math "nerds"
Even Google changed their log today. http://www.squidoo.com/PiDay
2 answers
688 views
Even though you mean well, your last three responses have been either incomplete or incorrect.
The one to
4 answers
590 views
You stated on Saturday that you understood my solution as far as part a) and b) were, so let me just recap what we did.
(I will
0 answers
535 views
"100 bushels of corn are divided among 100 men, women, and children. Men receive 3 bushels each, women 2 bushels and children
0 answers
1,231 views
I saw your reply re my late night solution to your pumpkin question
http://www.jiskha.com/display.cgi?id=1224212047 I did indeed
3 answers
621 views
At 11:37 and at 12:24 you posted the same question
the earlier one was answered correctly by drwls by accepting your question the
0 answers
1,265 views
3(2+3-2(4-5)2-1)-3(2+4(4-2)-8+3(2-5)+1-2)1-3)+4-5
rather silly question, and some of it makes no sense eg look at the first part
1 answer
850 views
other than factoring out the 9 there is really no simplification that can be made here
9sqrt6 - 9sqrt2 =9(√6 - √2) can
0 answers
466 views
This is "college" math?
Anyway... let the smaller number be x, and the larger number be x+8 then x + x+8 < 12 this is easy to
0 answers
811 views
Set it up this way:
Let the number of students be x let the number of rows be y then the number of students per row is x/y This
0 answers
605 views
These are very easy to set up with a "chart"
---------Distance-----Rate---Time (D=RxT) slow way --6x----------x-------6 fast way
0 answers
553 views
break it down into cases
at most one day of rain in 3 days to me means we could have: norain norain norain ----> (1/3)^3 = 1/27
1 answer
582 views
<Thanks to computers, writing may soon become a lost art.>
Leo, a similar prediction is often made about arithmetic since the
2 answers
566 views
You did not watch your units, you are mixing inches and feet
Your equation should have been 1/2 = 1/di + 1/120 (I changed 10 feet
0 answers
1,036 views
On an x-y grid, label them N-S, E-W, draw a line from the origin to the right and label it 425 (you are going East)
From the end
0 answers
616 views
I hope that the diagram I have drawn for myself matches the one in your question.
I have a triangle with sides 20 and 10 and an
0 answers
748 views
I don't know the physics behind Snell's Law, but I can do the math
Snell's Law says sin(angle of incidence)/sin(angle of
0 answers
701 views
Please take a look at DEVON's trig equation at 9:14
I must be missing something obvious. If the second had been 3sin 2x it would
0 answers
638 views
how about (5-3)x2 + 8(5-2) ?
To me these are really just "puzzles" and do not actually require much mathematical ability. The
0 answers
499 views
I trust you know about y = mx + b
Realize that when you are given the x or y intercepts, you are really just given two points, in
0 answers
877 views
Complimentary angles add up to 90º
So translate the English into Math. if you let the unknown angle be x then "the measure of
3 answers
1,050 views
according to my interpretation of the question in October they would collect:
the 10% of the August sales = .10($10,000) the 20%
1 answer
832 views
I assume the poster was trying to type "oblique asymptote"
from your answer of 3x+2 + 7/(x-1) we can conclude that there is an
0 answers
613 views
Is there any way that the postings could be numbered?
The post below this one by TONY obviously refers to a previous posting of
0 answers
756 views
let f(m)=m^3 + 3m^2 + 3m + 1
notice f(-1) = 0, so m+1 is a factor. Using division, the answer is m^2 + 2m + 1 which factors once
0 answers
808 views
There is no function equation for the Fibonacci numbers, you have to use a Recursion formula.
F(n) = F(n-1) + F(n-2) for n>2 and
1 answer
615 views
Answers (46,425)
The answers are 1. A 2. D 3. E 4. G
This site sucks balls
changing your numbers to fractions .... 0.125, 0.25, 0.5, 1, ... = 1/8, 1/4/, 1/2, 1, it looks like a GS with a = 1/8 and r = 2 so term(8) = ar^7 = (1/8)(2^7) = 16
Answer
Triangles with an angle greater than 90º are called obtuse, triangles with 3 different angles, thus 3 different sides, are called scalene. Some triangles, such as yours, can be both obtuse and scalene, but a triangle with angles of 120°, 30°, 30° would
Going with ooblecks idea of finding a common denominator of 8, we get {3/4, 1/8, -1/2, -9/8...} = {6/8, 1/8, -4/8, -9/8...} , which is an arithmetic sequence, with common difference of -5/8 What do you know about convergence and divergence of arithmetic
It is totally inappropriate to impersonate a very respected teacher, Ms Sue, who unfortunately passed away last year. We all deeply mourn her loss. You will be banned from this site and your posts should be removed.
Bru I got an 88% I Got the final answers and number 2 is wrong. copy from the rest tho
Thx he is correct
Your Welcome everybody heres the rest C 2. A 3. D 4. B or C 5. D 6. C 7. D 8. B 9. C 10. D? 11. A 12. A 13.A 14. D
Thank you guys 🥺😇!! I know this was written 3 years ago, and thanks for telling me how good I am at math. This is very very late, but thanks I appreciate it. *Hands out cookies 🍪*
geeessshhh guys https://www.jiskha.com/questions/1835043/debra-had-50-bill-when-she-went-to-the-movie-she-bougtt-two-tickets-for-8-75-each-a
40 ft : 8 sec = 110 ft : x sec 40/8 = 110/x 40x = 880 x = 880/40 = 22
Already answered, look back
I want you to find $50 - cost of 2 tickets - cost of one popcorn - cost of 2 drinks I gave you the steps to do that.
By the cosine law: 7.5^2 = 7^2 + 8^2 - 2(7)(8)cos Q cosQ = .50669... angle Q = 59.556° In any cyclic quad, opposite angles are supplementary, so angle S = 120.444° If Ja, genau die selbe, nur ein wenig verlaengert If SR=SP, then you have an isosceles
for your AP, 5 - (x-1) = x+2 - 5 solve for x
8x ≥ -2
Incomplete
What is 50 - 2(8.75) - 6.95 - 2(2.5) ??
What is 12 ÷ 1.5 ??
Is this in response to some sort of trig equation?
Ja, genau die selbe, nur ein wenig verlaengert d = √(∆x^2 + ∆y^2 + ∆z^2)
s(t)= -16t^2+64t v(t) = -32t + 64 a(t) = -32 a) find v(2) b) clearly a constant for the domain of t c) set v(t) = 0 and solve for t then sub that into s(t) to find the corresponding height
half-life ----> so I will use 1/2 as the base in my exponential equation half-life is 5830, so I will use t/5830 as my exponent amount = (1/2)^(t/5830) = .5^(t/5830) 20% has decayed ---> I have 80% or .8 left .8 = .5^(t/5830) take log of both sides and use
Argggh,, I did minutes per page, go with oobleck
5/6 pages in 2/3 minutes ----> 1 page in (2/3) ÷ (5/6) minutes = (2/3)(6/5) minutes = 4/5 minutes or 5/6 pages in 2/3 minutes = 5 pages in (2/3)(6) or 4 minutes = 1 page in 4/5 minutes or 1/(5/6) = x/(2/3) (5/6)x = 2/3 x = (2/3)(6/5) = 12/15 = 4/5
a^2 - 2ax + a^2 = (x - a)^2 so x^3 + 3px + q = (x-a)(x-a)(x-k) the last term of (x-a)(x-a)(x-k) is -ka^2, so -ka^2 = q ----> k = -q/a^2 and x^3 + 3px + q = (x-a)(x-a)(x+q/a^2) = (x+q/a^2)(x^2 - 2ax + a^2) = x^3 - 2ax^2 + a^2 x + (q/a^2)x^2 - (2q/a)x + q =
so in c = g + 14, you are given the value of c to be 20 , but g is still unknown, so ... 20 = g + 14 you want g all by itself in your equation, so let's get rid of the +14 by doing the invers, that is, let's subtract 14 from both sides 20 - 14 = g + 14 -
Translate your data into ordered pairs in the form (time, temperature) : (2,19), (6,27), (10,35), (14,43) taking the slope between consecutive points shows that it is a constant 2, so the relation is linear and can be expressed in the form y = mx + b or
NUMBER HAS 5 TEN THOUSANDS ---- 5X,XXX 2 MORE THOUSANDS THAN TEN THOUSANDS --- 57,XXX NO HUNDREDS ---- 57,0XX 1FEWER TENS THAN TEN THOUSANDS ---- 57,04X 3 MORE ONES THAN TENS ---- 57,047 Now what was so difficult to just follow the English description?
the product of four and a number x ----> 4x now what is 6 less than that?
Since you claim that the depreciation is linear, (not realistic), let's express the given data as ordered pairs in the form (years, value), that is, (0,140050) and (25,12550) slope = (12550-140050)/(25-0) = -5100 and since the point (0,140050) behaves like
Looks to be that oobleck showed you HOW to do it just fine.
amount of the pizza left over as a fraction = 1 - 1/4 -2/3 = ...
Your question makes no sense. Did you mean: By what number must (√2)(x√x)(4√(10x)) be multiplied to make it rational ? (√2)(x√x)(4√(10x)) = 4√20 x^2 = 8√5 x^2 If I multiply this by √5, I get 40x^2 Let me know if that was not your
For a sequence to be arithmetic the difference between consecutive terms must be the same ... 7-4 = 3 9-7 = 2 12-9 = 3 , mmmhhhh?
Your post makes no sense, but let me take a stab at what you are trying to say and conjure this .... " A spider has eight legs and an ant has six legs. There are a group of spiders and a group of ants. The groups have equal numbers of legs. What is the
From Damon's 3 x y - 5 x = y + 4 3xy - y = 4 + 5x y(3x - 1) = 4+5x y = (5x + 4)/(3x - 1)
On a number line, make marks of 1/2 units apart. Place 1/9 on your number line, which of of marks is closest to 1/9 ?
Your correct choice should have looked like this 25 ≤ x ≤ 30
So you want to go the other way around 360-250 = 110 so the coterminal angle with 265° is -110°
No such property, the statement is false
area of trap = (1/2)(sum of parallel sides)(d), where d is the distance between them 2 = (1/2)(6+8)(d) d = 2*2/14 = 2/7 cm
For "greater than or equal to" you need ≥ so.... x < –3 or x ≥ 5 Btw, Ms Sue is no longer with us, unfortunately she passed away late last year. We all miss her
False, all I need is one counter-example let n = 11 then n^2 + n + 11 = 11^2 + 11 + 11 = 11(11 + 1 + 1) = 11(13)
2x + 6/3 = 20 "quotient of six and three" , isn't that just 2 ????
based on a rather little used identity: tan(A/2) = (1 - cosA)/sinA and noting that 22.5= 45/2, 37.5 = 72/2, and 82.5 = 165/2 I will skip writing the degree symbol, let it be understood that these are in degrees we have: tan 22.5 = (1 - cos45)/sin 45
