Here it is:
If ( x + y ) ² = 100 and ( x - y ) ² = 16, what is the value of xy?
Please write out a step-by-step explanation with your answer so I can understand how you got there.10 points to the be
the answer and work for :
solve: |2x-5|=1 and sq.rt(9-x) +3=x and 4/x+1-3/x+2=1-| 2x - 5 | = 1WILL be as two solutions :
2x - 5 = 1 -----> 2x = 5 + 1 -----> 2x = 6 -----> x = 3
2x - 5 = -1 ----->
6x² - 13x + 6 ≥ 0
Okay, I know if this was a regular equation I would get... x = 3/2 or x = 2/3. But this is an inequality, and I dont understand how Im supposed to figure out what inequality signs t
I have a question that says,
find the value of each variable
The problem looks like this:
m(the sign kinda looks like a less than except its more open kinda like an acute angle)BDJ= 7y +2, m(same s
If Arielle is paid $9.56 an hour as a swimming lifeguard and she works 12 hours a week, whats her average wage? If she asked for a raise to $12.50 an hour, would her monthly earnings increase by more
A speed of 60 mi/h is equal to the speed of 88 ft/s. Find the speed to the nearest mile per hour of an aircraft traveling 1000 ft/s.-60 is to 88 as x is to 1000
1000 times 60 divided by 88
681 mph-Ass
For all integers x and y that are greater than 1, xy > x + y. Of the following values for x and y, which shows that the statement above is not true? Yahoo answers
a. x=0, y=2
b. x=1, y=1
c. x=2, y=2
f(x)=2x-x^2
textbook says x=0 and x=2...how?-set the equation into this form first: f(x)=ax²+bx+c=0
which looks like this: f(x)=-x²+2x+0
x² is the first term (a) , 2x is the second (b) and 0 is the t
2/8 = 25%
divide the 2/8 out and you get .25
just move the decimal 2 places to the right to get it into a percent-2/8 simplifies into 1/4, and 1/4 of 100 is 25%so 2/8 = 25%-25%-2/8 goes to 1/4. and
An investment is worth $3127 in 1994. By 1998 it has grown to $3663. Let y be the value of the investment in the year x, where x=0 represents 1994. Write a linear equation that models the value of the
If they work 40 hours a week then it is
40 x 9.60 = $384 gross-depends on how many hours (h) she worked and the money earned = $9.60 * h.
If h = 40 hours, then $9.60 * 40 = $384.00-about $360 after t
Its listed as Neither. Why is that so? If you plug in a negative one, the 3 and the 2 turn negative, right?-No because negative one squared equals one multiplied by three keeps the three positive you
{x l x ε R}
Does that mean x in the set of all real numbers?-What does this domain notation mean?
{x l x ε R}
Does that mean x in the set of all real numbers?
Yes !
literally:x such that x is an ele
So the question asks,
Let A=
[587]
[01-1]
[130]
and let vector u=
[2]
[-3]
[2]
Is vector u, in the span of the columns of A?
Im hopelessly lost here, I have no idea what to do, an answer would be
Ok i am going to list alot of math problems so if you can help i will give you 10 points right away please please help its super important you dont have to explain any just the answers plz For all pro
