2,563 Answered Questions for the topic Maths

04/28/22

BBBASICSTAT8 6.2.501.XP
In the binomial probability distribution, let the number of trials be n = 3, and let the probability of success be p = 0.4012. Use a calculator to compute the following.(a) The probability... more
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04/28/22

BBBASICSTAT8 6.2.018
The one-time fling! Have you ever purchased an article of clothing (dress, sports jacket, etc.), worn the item once to a party, and then returned the purchase? This is called a one-time fling.... more
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04/28/22

BBBASICSTAT8 6.2.019.MI
Sociologists say that 95% of married women claim that their husband's mother is the biggest bone of contention in their marriages (sex and money are lower-rated areas of contention). Suppose... more
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Maths Mathematics

04/25/22

Finding the equation for the area (A) of a rectangle in terms of x
I have been given a rectangle, I know the area, width, and height of the rectangle but the question asks me to find the equation of the area (A) of this given rectangle in terms of x. How would I... more
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04/24/22

Show your answers by following the 5 steps of testing hypothesis.

Research suggests that most people need at least 7 hours of sleep each night in order to function well the next day. Some research suggests that lack of sleep can adversely affect health, memory,... more
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04/23/22

yz = ln(x+z), find partial derivatives
Find partial derivatives of (del z)/(del x) and (del z)/(del y)eq. yz = ln(x+z)
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04/21/22

Find all partial derivatives of w = xsin(yz) - zln(xy)
w = xsin(yz) - zln(xy)
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04/21/22

Find k, so that the quadratic equation (k+1)x 2 −2(k+1)x+1=0 has equal roots.

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04/21/22

Compute the test statistic t
Medical literature tells us that our blood is mainly composed of red and white corpuscles and a normal human body must average 7250/mm3 of white blood cell counts. If a sample of 15 individuals... more
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04/21/22

Compute the test statistic z
According to NSCB statistics, the life expectancy of Filipino women is 70.1 years. Suppose a random sample of 30 women in town B yields a mean of 72.5 years with a population variance of 4.76... more
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04/17/22

Could I have an explanation of how to solve this question?
A manufacturing machine has a 5% defect rate.If 9 items are chosen at random, what is the probability that at least one will have a defect?
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04/16/22

write down the equation of a line that is perpendicular to y=2x-1 and passing through (4,0)
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04/12/22

Is hypothesis testing an efficient way of solving problems?why? Provide real life experience/example.
Is hypothesis testing an efficient way of solving problems?why?Provide real life experience/example.
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04/07/22

Probability Math- Seven horses are entered into a race.

Seven horses are entered into a race. If three horses are tied for first place, and there are no ties among the other four horses, in how many ways can the seven horses cross the finish line?I... more
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04/06/22

System of equations question!
Afternoon. I'm struggling to understand where to really go with this question! It reads as follows:========================"A lot of people have taken to baking as a pandemic interest. You’ve... more
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04/06/22

For each given equation, please identify the center, vertex or vertices, focus or foci, and asymptotes. Finally sketch the graph. Equations are listed in the description.
a) (x+6)^2 _ (y+5)^2 = 1 64 58b) -4x^2 +3y^2 +72x -18y = 321For b) also determine the eccentricity, if possible.
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04/06/22

Find the equation of the tangent to the curve r = θ when θ = π 2 .
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Maths Mathematics

04/04/22

Worker's salary was increased twice by the same percentage. What was the salary increase percentage each time, if before the salary was 800 and after the second salary increase it was 1250?
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04/04/22

one solution contains 1.6%, the other 6% salt. how much of each solution should be taken to get 550 g of a 4% saline solution?
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04/04/22

A question on Calculating present Value
a) The ideal management is considering between two projects A and B. Project A will require an initial outlay of Sh. 4 million and will generate Sh. 3.5 million per annum for the 8 years of its... more
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03/31/22

The sum of the two numbers is 510. Find these numbers if 12% of one number is 60% of the other
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Maths

03/31/22

meteor crater maths
The distance around a meteor crater is 9275 ft. Find the diameter of the crater. Use 22/7 for pi.
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03/30/22

Find the equation of the tangent line and normal line to the curve e^(-x)-y=0 at (-1,0).
Find the equation of the tangent line and normal line to the curve e^(-x)-y=0 at (-1,0). Tangent lineis y=-e(x+1) correct?Normal Lineis y=1/e (x+1) correct?
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03/29/22

Show that line 1: <1+t, -3-t, 5+2t > and line 2: < 4-s, -3+s, 6+2s >are skewed.
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Maths Physics

03/29/22

if a car travels hundred metre in 5 second then how many meter it will complete in 60 second

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