07/13/19

De Moivre’s theorem

Use De Moivre’s theorem and determine the value of...[8(-1 + 31/2 i)]1/4Do the calculation in polar form but give the answer in rectangular form.
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07/13/19

Finding the angles of a triangle.

I know that the angels of a triangle equal 180 degrees but what does it mean when the one of the angles given look like this "64°40'11"?
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07/12/19

Applied Math- functions
A parabola has a vertex of (4, 8) and points down.Write two possible equations of quadratic functions in vertex form such that the parabola has exactly two zeroes.Find the zeroes for both... more
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07/12/19

Implicit differentiation with Python 3?
How can we derivate a implicit equation in Python 3? Example `x^2+y^2=25` differentiation is: `dy/dx=-x/y`, when try this: from sympy import * init_printing(use_unicode=True) x =... more
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07/12/19

Python partial derivatives easy?
I'm interested in computing partial derivatives in Python. I've seen functions which compute derivatives for single variable functions, but not others. It would be great to find something that did... more
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07/12/19

Write a polynomial function f of least degree that has rational coefficients, a leading coefficient of 1 and zeros at x=1, 2, 5
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07/12/19

How to find Chord from Arc Length and Sagitta
I am trying to find the formulas to solve the entirety of a circle segment but all I have are the arc length and the sagitta. From this can I solve for Θ or chord length? EX: I have a arc length of... more
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07/12/19

J cubed divided by the sum of k and a number 5 is greater than or equal to 12?
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07/12/19

The present age of john and jonah are in the ratio of 3:5. Three years hence the ratio of their age becomes 2:3. What is the sum of their present ages?

Answer options are a) 24 years b) 21 years c) 26 years d) 29 years
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07/12/19

Grade 3 Maths question
Amy bought 4 notebooks and 2 pens. Each notebook cost 2 times as much as the pen. She paid $24.80 more for notebook, how much did i spend on pens?
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07/12/19

Walking 6/7 th of his usual speed, a man is 12 mins too late. What is the time taken by him to cover that distance?

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07/12/19

What is an equation of the line that has a slope -4 and passes through the point (-2,-5)?
1) y=-4x+32) y=-4x-53) y=-4x-84) y=-4x-13
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07/12/19

a shopkeeper has bought 138.75kg of rice and wants to put them into equal sized packs. How many packs could he make if each held 750 grams?
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07/12/19

math help answer ASAP
if the braclet Lily would like to buy cost 5 less than 5 times the ammount she has saved and the braclet cost 30 dollers how much money does lily have saved
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07/11/19

algebra 2 practice.. im very confused.

The Miller family visited Mama's Kitchen and ordered 4 hamburgers and 3 medium fries and paid $17.7. James ordered a medium drink, a hamburger, and 2 medium fries and paid $8.05. Steven ordered 2... more
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07/11/19

ALGREBRA HOMEWORK PLS HELP !!!
The Miller family visited Mama's Kitchen and ordered 4 hamburgers and 3 medium fries and paid $17.35. James ordered a medium drink, a hamburger, and medium fries and paid $6.09. Steven ordered 2... more
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07/11/19

If the area of a rectangular board is 336 square inches and its perimeter is 76 inches, what is the length of each of the shorter sides
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07/11/19

What is the solution to -2x-6<3x+6?
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07/11/19

Quantitative aptitude
P can alone do a task in 15days and Q can do the task in 20 days. If they work through for 4 days. How much work is left incompletly.
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07/11/19

Algebra 1 order of operations with fractions

A runner has a track time of 1 minute while running, 5 minutes while jogging and 8 minutes while walking. If 2/5 of the lap is paced at a run, 1/3 at a jog, and 4/15 at a walk, what is the total... more
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07/10/19

mary has 90 fliers to post around town. last week, she posted 1/3 of them. this week she posted 1/5 of the remaining fliers. how many fliers has she posted
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07/10/19

if I buy a bag of food that’s 50 pounds how many bags do you think I’m gonna need for one month if it needs to eat 15 pounds per day?
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07/10/19

if I buy a bag of food that’s 50 pounds how many bags do you think I’m gonna need for one month if it needs to eat 15 pounds per day?
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07/09/19

Math Question to a NYCHA Painter Test
Assume that one gallon of paint, costing $6.25, is able to cover 500 Square feet. If a painter can spread 1.25 gallons per day and receives $60 per day, the cost per 100 square feet for labor and... more
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07/09/19

Not sure how to do this one.

what is the first term of a 10-term arithmetic series with t2=10 and S=120? Leave your answer in exact form
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