04/23/23

write the summation notation of this sequence: 1-1/4+1/9-1/16+1/25-1/36+...
I need this in sigma notation
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04/23/23

Find the resultant of the vector shown
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04/23/23

Divide this problem
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04/22/23

An initial amount of 500 g of a certain radioactive substance decays according to A(t)=500e^-.0333t Where tea is measured in years find the half-life of the substance.
An initial amount of 500 g of a certain radioactive substance decays according to A(t)=500e^-.0333t Where t is measured in years find the half-life of the substance.How do I solve this? It’s on my... more
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04/22/23

QUICK HELP?!?!?!?!
rewrite r=4costhea in rectangular formshow work. Your final answer must be in standard form of a circle.(x-h)^2+(y-k)2=r2
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04/22/23

QUICK HELP ????!
Find the product Z1=1/2(cis pi/3) and z2=3(cos pi/6+ i sinpi/6) then place your answer in rectangular form show work please
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04/22/23

We compare two sample variances to determine whether the difference between them is probably not due to random sampling error when we perform a ______.
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04/21/23

Standard form equation for a hyperbola

Find the standard form equation for a hyperbola with vertices at (5,0) and (-5,0) that passes through the point (6,11).
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04/21/23

For the situation described below, state the null hypothesis, H0, and the alternative hypothesis, Ha, to be tested. (Enter != for ≠ as needed.)
A statistical test is designed to show that the mean 𝜇 is different from 150.
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04/21/23

Find the volume of the solid formed by rotating the region bounded by the given curves about the indicated axis of revolution. (Round your answer to two decimal places.)
Find the volume of the solid formed by rotating the region bounded by the given curves about the indicated axis of revolution. (Round your answer to two decimal places.)y = −|x − 3| + 3, y =... more
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04/21/23

Determine whether the sequence converges or diverges. If it converges, find the limit.
an=(6n)/(1+7n)
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04/21/23

does the series the sum from n=1 to infinity of 4/((squqre root n)+2)
4/(√x +2)
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04/21/23

apply the ratio test and find if it converges: the sum from n=1 to infinity of (n^90)/n!
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04/20/23

Find the volume of the solid formed
Find the volume of the solid formed by rotating the region bounded by the given curves about the indicated axis.y = x3/4, x = 0, y = 1 (in the first quadrant); about the y-axis
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04/20/23

I really don't understand this:
The average height of a sixth grade class is 64 and a standard deviation of 2. What is a student's z-score if his height is 66?
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04/20/23

Please help me solve this.

Find the point on the line 1x + 1y - 5 = 0 which is closest to the point (-1,−1).
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04/19/23

statistics question
Out of 400 people sampled, 284 had kids. Based on this, construct a 95% confidence interval for the true population proportion of people with kids.Give your answers as decimals, to three places
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04/19/23

The numbers 1, 2, 3, 4, and 5 are written on slips of paper and two are drawn at random without replacement. What is the probability that the sum is 5 or less?
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04/19/23

QUICK HELP??????
Rewrite the following equation and polar form x^2+(y-5)^2=25 show work .your final answer should be r=
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04/19/23

Quick help ??????????????
Convert the polar form of the complex number into rectangular formz=3squrt2cis7pi/4 show work show how you separately convert r and Thea into a and b
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04/19/23

Algebra 1, finding average

the sum of four numbers is 411.6. two of the numbers are 20.4 and 270.5. find the average of the four numbers.
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04/19/23

Algebra help needed

A new truck loses value each year after it is purchased. The value of ford pickup truck was $24000 when new, but it been depreciating by about 10% per year. A-Write an exponential equation for f(t)... more
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04/19/23

Normally distributed height

The heights of 18 year-old men are approximately normally distributed, with mean 66 inches and standard deviation 4 inches.(a) If a random sample of sixteen 18-year-old men is selected, what is the... more
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04/19/23

Determine coordinates of the local extreme values on a function see for question below

7. Determine the x and y coordinates of the local extreme values on the function 𝑦 = 𝑒^𝑥𝑠𝑖𝑛𝑥 over the interval 0 ≤ 𝑥 ≤ 2𝜋. Calculate the y coordinates to 3 decimal places. You do not need to... more
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04/19/23

Calculus Parametric Equations
Find the tangent line(s) to the parametric curve x = t6-4t4 and y = t2 at (0,4). Write your tangent line(s) as a cartesian equation. If there is only one tangent line, enter 'DNE' into the second... more
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