05/25/23
Sequences and series in functions questions
a) Calculate the sum of the series: –396 – 308 – 220 – 132 – ... + 836.b) Calculate the sum of the series 4 + 12 + 36 + ... + 2916.c) Calculate the sum between and including the terms and of an...
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05/25/23
Hello! I could use some help with these questions on sequences and series for functions so that I can cross-reference with my work
a) Find S9 of a geometric series if t1 = 2 and t6 = 486.b) What binomial power does the binomial expansion represent? Indicate the binomial base as well as the exponent. Explain how you figured...
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05/25/23
Translate the sentence into an equation. Five more than the product of a number and 9 is equal to 8. Use the variable y for the unknown number.
Translate the sentence into an equation.
05/25/23
How do you solve for θ in the equation: sin(2θ)=(6θ-2π)/3
I've started solving a problem and eventually got this: sin(2θ)=(6θ-2π)/3(θ is an angle measure in radians)I didn't know how to solve this equation so i put it into different online tools but none...
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05/25/23
Marginal Revenue/profit question
If marginal revenue is -0.009x^2 + 1020 and the cost per unit is 1.5, how much do profits increase by when output is expanded from 90 units to 148 units?
05/25/23
Write an equation in standard form for the polynomial with given zeros x=-1, x=4i, and x=√6. Show your work.
You may leave equation in factored form, but it must have real number coefficients. Assume a=1
05/25/23
Find all zeros of the function. Show all of your work - synthetic division, factoring, quadratic formula, etc. f(x)=3x^3-5x^2+5x-14
The leading coefficient of 3 has an exponent of 3 so shouldn't there be 3 roots? Yet the only root I found was x=2. I am confused.
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05/24/23
Find percentile
Salaries for teachers in a particular elementary school district are normally distributed with a mean of $43,000 and a standard deviation of $6,100. We randomly survey 10 teachers from that...
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05/23/23
Determine which of the following points is a solution to the inequality
y≤-(x+2)2+3
(0.-1)
(0,0)
(1,2)
(2,-5)
05/23/23
What degree is 90 degrees acute obtuse right or straight?
What degree is 90 degrees acute obtuse right or straight?
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05/23/23
Pre calculus /. Harmonic motion
Find a formula for this function (2.5,7.2), (?,2.4), (7.5,7.2)y=(?)cos(2pi/(?)(x-(?))+ (?)
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Please help! A radioactive substance decays according to the following function, where y0 is the initial amount present, and y is the amount present at time t (in days).
A radioactive substance decays according to the following function, where y0 is the initial amount present, and y is the amount present at time t (in days).y = y0e-0.019tFind the half-life of this...
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Need help. What is the answer? Thank you sir.
The parametric equations of a curve is r(t)=2i+tj+t2k.a) sketch the curve r(t) for -3≤t≤3.b) Find the followings when t=0i) The unit tangent vector, T. ii) The principal unit normal vector, N.
05/22/23
What is the volume of this cylinder?
Use 𝜋 ≈ 3.14 and round your answer to the nearest hundredth.
4 m
8 m
05/22/23
Trying to remember a math term and I could be thinking of something wrong.
When counting by 5’s or 4’s or 3’s as an example, what is the term for the numbers you get by counting that way? 15 is what of 5? Or what is its relationship to 5?
05/22/23
The coordinates of ▭WISH are given. Plot and connect the following set of points in the CARTERSIAN PLANE. Decide whether WISH is a rectangle, rhombus or a square.
(a) W (-4, 0); I (3, 7); S(6, 4); H(-1, -3)(b) W (1, 1); I (-2, 4); S(-5, 1); H(-2, -2)
05/22/23
The coordinates of ▭WISH are given. Plot and connect the following set of points in the Cartesian Plane. Decide whether WISH is a rectangle, rhombus or a square.
(a) W (-4, 0); I (3, 7); S(6, 4); H(-1, -3)(b) W (1, 1); I (-2, 4); S(-5, 1); H(-2, -2)
05/22/23
normal distribution
Suppose that the duration of a particular type of criminal trial is known to be normally distributed with a mean of 25 days and a standard deviation of 6 days.72% of all of these types of trials...
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05/21/23
given f(x)=x^3 -3 find the equation of the secant line passing through (-4, f(-4)) and (2, f(2))
05/21/23
Normal distribution
Terri Vogel, an amateur motorcycle racer, averages 129.71 seconds per 2.5 mile lap (in a 7 lap race) with a standard deviation of 2.28 seconds. The distribution of her race times is normally...
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