06/22/18

Find the real and imaginary parts of z when: 1/z = (2/(2+3i)) + (1/(3-2i))
The answer on the book is 7/5 + i 4/5. However, I couldn't solve it.Please show step by step.
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06/22/18

Geomtry Rectangle word problem
Can anyone tell me how solve this problem thnx The length of a rectangle is 6 ft. greater than its width. Were the width 2 ft. less and its length 3 ft. greater, the area would be the same as... more
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06/21/18

If f(x) = x^3, which of the following describes the graph of f(x + 2)?
A.The graph of f(x + 2) is a horizontal shift of f(x) = x^3 two units to the left. B.The graph of f(x + 2) is a horizontal shift of f(x) = x^3 two units to the right. C.The graph of f(x + 2) is a... more
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06/21/18

If n(A)=n, then what is the number of the non empty subsets of A.
 What is the number of the non empty subsets of A, If n(A)=n?
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06/21/18

Are these lines parallel, perpendicular or neither
3+7x=8y 8x+7y=9
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06/21/18

Which system of equations can be used to find the number of adult tickets, x, and student tickets, y, that the class sold?
The students in the sophomore class at a school sold tickets to a talent show. Adult tickets cost $7 each and student tickets cost $3 each. The class sold a total of 145 tickets and earned... more
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06/21/18

Find the value of k
Find the value of k if the roots of x2-4x-kx+49=0 are equal.
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06/20/18

How many distinct x-intercepts does the graph of y = (x-5)(x^2+5x+6) have?
 It is about graphing quadratics.
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06/20/18

the sum of two numbers is x and the product is y. what are the two numbers?
the sum of two numbers is 2 and the product is 126. what are the two numbers
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06/20/18

What is N={x | x is > 2 but x is < 10}
N= {x|x > 2 but x is < 10}
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06/20/18

Please help me solve this
A probability experiment is conducted in which the sample space of the experiment is Upper S={1, 2, 3,4,5,6,7,8,9,10,11,12} , event F={6,7,8} comma and event G={ 9,10,11,12} . Assume that each... more
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03/30/18

solve systen=m equation
How many solutions are there for the system of equations y = sin2x – (2)1/2 sin x – 1 and y = x – 3 on the interval [0, 2π)?
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03/30/18

A salesman receives a fixed salary of $500 per week. In addition he is paid 12% of all sales over $1000.
Write the formula that describes how his weekly salary, s, depends on his weekly revenue, r. (The revenue is the amount of money he collects by selling the goods.)
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12/29/17

What is the equation in point slope form of the line passing through (-3,-4) and (0,2)
?????????????????????????????????
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12/28/17

Maisie has three times as many CDs as Ken. ken has twice as many Cds as Jo. Jo has 10 more CDs. What is the least number of Cds that Masie can have?
Math Olympiad
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12/28/17

Electrical connection needed for small restaurant business?
HI,I have signed an franchise agreement with one of local fast food center. I am stuck in the process of initial set up for the business as my franchisor telling me to get 3 Phase 10 Kw eletrical... more
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12/28/17

on an old bicycle.
On an old bicycle, the front wheel has a radius of 2.5 feet and the back wheel has a radius of 4 inches. How many complete revolutions will the back wheel make to cover the same distance as the... more
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07/20/17

(Cot a+ Csc B)/(tan a+ sinB) = cot a Csc B
use the receprocal identities to write the trignkmetric functions in the denominator of the left side. add the fraction in the denominator of the previous step...(left side) the fraction from... more
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07/19/17

Calculus Question
Find the slope of the tangent to the curve f(x) = x2-2x-1 at the point (3,2)
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07/19/17

Distance, rate, time
Keller is driving at a speed of 60mph. At noon he sees a sign which says LONGWOOD -52 MILES. If he continues to drive the same speed, how far away will longwood be at 12.20pm?   I would really... more
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07/17/17

A very good 197-lb weight lifter lifted 192 kg in a move called the clean and jerk. What was the mass of the weight lifted in pounds?
I want to have the step by step way to solve this question
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07/17/17

I need help with a word problem
The braking distance d (in feet) of a car is divided into two components. One part depends onreaction time. The number of feet for reaction time is about the same as the speed of the carin miles... more
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07/17/17

Ryan is paid a flat rate of $11 for babysitting, plus an additional d dollars per hour. If he works more than 5 hours, he is paid 1.5 his hourly rate for any...
....hours over 5. If Ryan made $75 at a babysitting job lasting 7 hours, what is the value of his hourly rate, d?   A) 7 B) 8 C) 9 D) 13
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07/17/17

Find the angle between the hour hand and minute hand of a clock at 20 minutes past 11 in radian.
Find the angle between the hour hand and minute hand of a clock at 20 minutes past 11 in radian.
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07/14/17

What is a description that does NOT guarantee that a quadrilateral is a square?
math question
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