1,471 Answered Questions for the topic Math Problem
Math Problem
10/26/16
Lani said all of the multiples of 8 areal son multiples of 2.Jamila said all of the multiples of 8 are also the same as multiples of 4. Who is correct
Please let me know
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10/24/16
Top 10% of the class received an A on the last test...
I don't think I've worked this problem correctly. Please help, thanks!!
A teacher says that the top 10% of the class received an A on the last test. The scores were normally distributed with...
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if f(x)=1/x+2 what is f(3+h) Mathematics question!!!!
if f(x)=1/x+2 what is f(3+h) a. 1/ h+5 b.1/ 3+h c. 1/ (x+2) (3+h) d. (3+h)/(x+2)
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Math Problem
10/16/16
consider the general equation of a circle given by 3x^2+3y^2-12y=0
A) complete the square on x and y and write this equation in the standard form
b) identify the center and radius
c) find intercepts
Math Problem
10/16/16
if the whale swims for y hours what is it's distance?
the swimming rate of a whale is 25mph
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Math Problem
10/14/16
The superstore sold 341 dozen eggs at 1.19 per dozen on Wednesday what was the cost of all the eggs sold in Wednesday
The superstore sold 341 dozen eggs at 1.19 per dozen on Wednesday what was the cost of all the eggs sold in Wednesday
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Completing the square?
Write the following equation in the correct form.
x^2-4x+10y=0
The answer is y − 2/5 = − 1/10 (x − 2)2 but I do not understand why?
how would you complete the square?
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10/11/16
5 cards are selected from a fair deck. What is the Probability that they contain at least 4 reds?
5 cards are selected from a fair deck. What is the Probability that they contain at least 4 reds?
Please & Thanks!!
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Calculus inverse trig question
arccos(cos 7π/5)=?
the answer is 3π/5 but I do not understand how to get it
thankyou for the help!
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10/10/16
Define the equivilance relation on the set of R that partitions the real line into subset length 1
Define the equivilance relation on the set of R that partitions the real line into subset length 1
{[n, n+1]: n ∈ Z}
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10/09/16
A fair coin is flipped 7 times. What is the probability of obtaining at least 1 tail?
A fair coin is flipped 7 times. What is the probability of obtaining at least 1 tail?
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10/09/16
A fair die is thrown 10 times. What is the probability of rolling a 1 on exactly 2 of the 10 throws?
A fair die is thrown 10 times. What is the probability of rolling a 1 on exactly 2 of the 10 throws?
Please help!!
Math Problem
10/07/16
Total number (need this within 6 hours)
Both Ken and Lucy have baseball cards. If Lucy gave Ken 10 of her cards, they would have the same number of cards. However, if Ken were to give Lucy 10 of his cards instead, then Lucy would have 5...
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10/05/16
Find the probability that a person whose result is positive is actually negative
The Centers for Disease Control (CDC) estimates that 0.6% of Americans have AIDS. The HIV-1 tests correctly diagnose the presence of HIV in 95% of the persons who have it and correctly diagnose its...
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10/05/16
If 15% of adult females smoke..
An ectopic pregnancy is one where gestation occurs outside the uterus. The condition is twice as likely for a female who smokes than for one who is a nonsmoker. If 15% of Adult females smoke, what...
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Limit question
Consider the limit, lim(??x→1 ) ( x2 −kx+k−1)/(x-1), where k is a real number,?? Compute the limit
The answer is 2-k, but do I get that?
thankyou for the help
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Math Problem
10/05/16
tickets sold
Suppose some of the tickets sold for $8 and some sold for $5 ? What were the total ticket sales ? Write an equation to solve this problem.
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Enter the simplified equation that represents the total number of laps Beth and Sherry swam
Beth and Sherry partnered together in swimming laps to raise money for the local food bank. Beth raised $15 plus $0.65 per lap that she swam. Sherry raised $10 plus $0.75 per lap that she swam....
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Math Problem
10/04/16
can you guys pls help me out !
A piece of wire 10 m long is cut into two pieces. One piece is bent into a square and the other is bent into an equilateral triangle.
(a) Draw a diagram to illustrate the problem, using x as the...
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10/03/16
Unfair coin, probability of selecting a girl?
An unfair coin with Pr[H]=0.2 is flipped. If the flip results in heads, a student is selected at random from a class of 12 boys and 10 girls. Otherwise, a student from a different class containing...
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10/03/16
Need some help on this word problem
The cost to produce x units of wire is C=20x+550?, while the revenue is R= 45x. Find all intervals where the product will at least break even.
A. The inequality in interval notation is _____B....
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10/03/16
word problem help
Andrew can paint the? neighbor's house 2 times as fast as Bailey. The year Andrew and Bailey worked? together, it took them 7 days. How long would it take each to paint the?...
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Math Problem
10/02/16
What is Amalia's position compared to sea level after 25 minutes?
Amalia is scuba diving at a position 24.25 feet below sea level. She descends 0.5 foot each minute for 25 minutes.
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Math Problem
09/27/16
A speedboat traveling at a constant speed, arrives at its destination in 35 minutes. if it traveled at 70 miles, what was the speedboats speed?
Need to know for math.
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