Use the row operations to solve the system.

x - y = 1y - z = 0x + z = 1A. The solution set is { _, _, _}(type an exact answer in simplified form. If there are infinitely many solutions, type an expression involving z for each coordinate... more

12/09/16

Trigonometry HELP PLEASE

If sin(2x+12) = cos(4x-6), then solve for x on the interval [0,180)

11/03/16

What property of an object is expressed by the measurement of an item's mass per unit volume?

i dont know what the property of an object is

10/23/16

You need a 25% alcohol solution. On hand, you have a 375 mL of a 60% alcohol mixture. How much pure water will you need to add to obtain the desired solution?

You need a 25% alcohol solution. On hand, you have a 375 mL of a 60% alcohol mixture. How much pure water will you need to add to obtain the desired solution?

10/02/16

lim x?p of 6 sin(x + sin x)

lim x→π of 6 sin(x + sin x)

The slope of a line through A(-1, 1) is 3. Locate the point on this line that is 2 square root of 10 from A.

I have no idea how to solve this, can you please help me?

09/27/16

Leaves 4:50 PM and is driving at an average speed of 30 mph. average speed of 40 mph and leaves 5:20 PM. the same point, after how many hours will they meet?

Peter started driving at 4:50 PM and is driving at an average speed of 30 mph.  Dina is driving at an average speed of 40 mph and she started driving at 5:20 PM. If they started driving from the... more

09/27/16

Paul's dad is 5 times as old as Paul. In 3 years, Paul will be 1/4 his dad's age. What are their ages now?

Paul's dad is 5 times as old as Paul. In 3 years, Paul will be 1/4 his dad's age. What are their ages now?  

09/24/16

Tickets of a performance cost $3 for ga and $2 with id

  Tickets of a program at college cost ?$3 for general admission or ?$2 with a student ID. If 179 people paid to see a performance and ?$431 was? collected, how many of each type of ticket were?... more

09/18/16

These questions are pertaining to College Algebra

(3x - 4)(x + 2)(x + 6) ≤ 0   1. On a single number line, do the following:   a) Graph the intervals that satisfy the inequality, including endpoints. The is the graph of the solution set of the... more

How much was each allowance?

Algebraic Reasoning About Quantities   Paula and Ray receive the same weekly allowance. One Saturday after receiving their allowances, Paula spent $5.00 and Ray spent $2.00. Paula then had only... more

Find the rate of each jogger

Two joggers start at the same time from opposite ends of a boardwalk that is 12kilometers long. One jogs twice as fast as the other. Find the rate of each jogger of they meet at 15 minutes.       

If f(x) = kx^3 - 1 and f^-1 (15) = 2 find k

This is inverse functions 

09/12/16

Together, Tom and Max have 72 football cards. Tom has 2 more than 4 times as many cards as Max has. How many football cards does Tom have?

Together, Tom and Max have 72 football cards. Tom has 2 more than 4 times as many cards as Max has. How many football cards does Tom have?

absolute value equation

|x + 4| + 6 = 1

09/11/16

Four times the lesser of two consecutive even integers is 12 less than twice the greater number. Find the integers.

Four times the lesser of two consecutive even integers is 12 less than twice the greater number. Find the integers.

09/11/16

It is asking to write an equation in slope form based on the information given

A community college charges $22.00 per unit plus a $70.00 health fee. Let the input u represent the number of units enrolled in, and let the output T represent the tuition (charges) for that... more

09/07/16

d = 217 meters apart, start walking toward each other at the same instant at rates of 1.5 m/sec and 2 m/sec, respectively (see the figure).

When will they meet? How far will each have walked?child with the rate 1.5 m/sec mchild with the rate 2 m/sec m  

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