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0 
Questions Answered

suvaibaharif:
Group Title
The sum of the first n terms of a sequence is given by Sn = n^22n.
a. Find the first, third and sixth term.
b. Find an expression for the…
 updated 11 hours ago
 4 replies
 No Medals Yet
Mathematics

TheWalkingDeadFan123:
Group Title
how do i do this explain please
 updated 21 hours ago
 5 replies
 No Medals Yet
Mathematics

dabeezy:
Group Title
y=3cos(2xpi)
 updated yesterday
 36 replies
 1 Medal
Mathematics

mykela_m:
Group Title
A box contains 27 parts, of which 5 are defective and 22 are nondefective. 2 parts are selected without replacement.
I need help finding th…
 updated 2 days ago
 5 replies
 No Medals Yet
Mathematics

bibby:
Group Title
85% of the suspects tried for terrorism are guilty. The probability that someone will confess after prolonged questioning is 40% if the sus…
 updated 2 days ago
 3 replies
 1 Medal
Mathematics

beeks:
Group Title
A private charter airline has a plane that can accommodate 20 passengers. the airine knows that passengers often do not show up, so it sells…
 updated 3 days ago
 3 replies
 No Medals Yet
Mathematics

pty507:
Group Title
85% of suspects tried for terrorism actually are guilty. (Don’t worry about how we know this, just take
it as a fact for the sake of this p…
 updated 3 days ago
 4 replies
 2 Medals
Mathematics

beeks:
Group Title
The no. of violent crimes committed in a day is a positively skewed distribution with a mean of 41. crimes per day and standard deviation of…
 updated 3 days ago
 5 replies
 No Medals Yet
Mathematics

MabelGravityFalls:
Group Title
someone please help!!!! don't just give answer,give me the equation!
At a bargain store, Tanya bought 3 items that each cost the same amoun…
 updated 3 days ago
 4 replies
 1 Medal
Mathematics

chucky00:
Group Title
The perimeter of a rectangle is 90 ft. Find the dimensions of the rectangle if the ratio of the length to the width is 8: 7. Which of the f…
 updated 3 days ago
 1 reply
 No Medals Yet
Mathematics

Andresfon12:
Group Title
85% if suspect tried for terrorism are guilty (Don't worry about how we know this, just take it as a fact for the sake of this problem). als…
 updated 3 days ago
 8 replies
 2 Medals
Mathematics

BluGirl:
Group Title
suppose you roll 2 dies find probability of not rolling a sum of 8
 updated 7 days ago
 8 replies
 1 Medal
Mathematics

BluGirl:
Group Title
student government sold 400 tickets for a raffle. they sell tickets for $1. an officer draws one winning ticket from a box. if you've purcha…
 updated 7 days ago
 3 replies
 1 Medal
Mathematics

BluGirl:
Group Title
The Horizon Social Club is giving away door prizes to 15 of it's 500 guests. Guests are given programs, 15 of which contain a mark indicatin…
 updated 7 days ago
 5 replies
 1 Medal
Mathematics

prespres8:
Group Title
If P(A)=0.73,what is P(not A)?
 updated 10 days ago
 3 replies
 No Medals Yet
Mathematics

sirtokesalot:
Group Title
Two dice are thrown simultaneously. Given that sum of the numbers is NOT more than 5, what is the probability that sum is more than 3?
 updated 10 days ago
 4 replies
 1 Medal
Mathematics

nccastro16:
Group Title
What is a theorem called before it is proven?
 updated 10 days ago
 1 reply
 No Medals Yet
Mathematics

surryyy:
Group Title
We perform the experiment "toss two dice." What is the probability of the event, "The sum of the faces equals 5"?
Answer
…
 updated 10 days ago
 7 replies
 No Medals Yet
Mathematics

rachelledelija123:
Group Title
Gretchen and Ezia received equal scores on a test made up of multiple choice questions and an essay. Gretchen got 18 multiple choice questio…
 updated 11 days ago
 1 reply
 1 Medal
Mathematics

DeclanZ:
Group Title
A president and treasurer are to be chosen from a student club consisting of 50 members. How many different choices of officers are possible…
 updated 10 days ago
 5 replies
 1 Medal
Mathematics

surryyy:
Group Title
We toss 3 coins 100,000 times. How many times do we expect to see "Exactly 1 head" appearing?
Answer
…
 updated 12 days ago
 1 reply
 No Medals Yet
Mathematics

x3_drummerchick:
Group Title
Will give medals! Help! Draw 2 cards in order. What is the probability of getting a Jack then a red 10?
 updated 12 days ago
 21 replies
 2 Medals
Mathematics

Chris182aa:
Group Title
Mrs. Winston sells chocolate fudge for $7.50 per pound and peanut butter fudge for $7.00 per pound. The total number of pounds sold on satur…
 updated 13 days ago
 2 replies
 No Medals Yet
Mathematics

jacky220:
Group Title
Assume that a researcher randomly selects 14 newborn babies and counts the number of girls selected, x. The probabilities corresponding to t…
 updated 14 days ago
 9 replies
 No Medals Yet
Mathematics

froggyplb:
Group Title
V = i*R + L * di/dt, I have 175A/ns, L=9.5pH, and 5VDC. How do I solve this?? The answer is suppose to be 3.338V
 updated 14 days ago
 20 replies
 2 Medals
Mathematics

BeccaB003:
Group Title
I can’t figure this out! Please help. Medal to best answer.
As a newborn in 1949, Hal’s grandparents gave him a gift of $1000 in a savings a…
 updated 14 days ago
 15 replies
 1 Medal
Mathematics

ahatem:
Group Title
The crew of an airplane AN12 consisted of a pilot, copilot, and a mechanic. Suppose that 12 aviators and 4 mechanics were trained. How man…
 updated 15 days ago
 1 reply
 1 Medal
Mathematics

maz5tl:
Group Title
e^x=14
 updated 16 days ago
 3 replies
 2 Medals
Mathematics

rosy2:
Group Title
medal please help me!selling an item for rs1800 at a discount of 10% a shopkeeper had a gain of rs200.had he sold the item without discount …
 updated 16 days ago
 20 replies
 2 Medals
Mathematics

arbyj:
Group Title
i need to know what i did wrong (problem will be in comments)
 updated 16 days ago
 2 replies
 1 Medal
Mathematics
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