All categories

3 years ago

Express the sum in simplest form. [1/x] + [1/y]

2 answers:

6 0

X/y - y/x
---------------- 
1/y + 1/x 

x ² - y ² 
----------- 
x + y 

( x - y ) ( x + y 
-------------------- 
x + y 

x - y hope this helpd

ra1l [238]3 years ago

3 0

It is x-y hope that helps good luck

You might be interested in

Karen is seven years older than suzanne.Four years ago,karen was twice as old as suzanne was.How are they now?

EleoNora [17]

$K-Karen\ age\\S-Suzanne\ age\\K-4-Karen\ age\ 4\ years\ ago\\S-4-Suzanne\ age\ 4\ years\ ago\\\\ \left\{\begin{array}{ccc}K=S+7\\K-4=2(S-4)\end{array}\right\\\left\{\begin{array}{ccc}K=S+7&(1)\\K-4=2S-8&(2)\end{array}\right\\\\subtitute\ (1)\ to\ (2):\\\\(S+7)-4=2S-8\\S+7-4=2S-8\\S+3=2S-8\ \ \ \ |subtract\ 3\ from\ both\ sides\\S=2S-11\ \ \ |subtract\ 2S\ from\ both\ sides\\-S=-11\\\boxed{S=11}$

$Put\ the\ value\ of\ S\ to\ (1):\\\\K=11+7\\\boxed{K=18}\\\\\left\{\begin{array}{ccc}K=18\\S=11\end{array}\right\\\\Answer:\ Karen\ does\ 18\ years\ and\ Susanne\ does\ 11\ years.$

3 0

3 years ago

Read 2 more answers

Hannah wants to rewrite 18+12 using the greatest common factor and the distributive property. Which expression should she write?

lyudmila [28]

Answer:

Step-by-step explanation:

18 + 12 = 30

A: 6 (3 + 2) = 30

Simplified 6*5 = 30

4 0

2 years ago

Write the complex number in trigonometric form a+bi. 3(cos270+I sin 270)

Darya [45]

Simply get the value of the angle and distribute away.

$\bf 3[cos(270^o)+i~sin(270^o)\implies 3[0+i( -1)]\implies 3-3i$

4 0

3 years ago

If 4 cookies cost $4.00, how much does 1 cookie cost?

Mkey [24]

Answer:

1 dollar

Step-by-step explanation:

6 0

3 years ago

If the sum of the roots of the equation 3x² + kx + 1 = 0 is 7. then what the value of k

koban [17]

Answer:

The value of k is -21

Step-by-step explanation:

ax² + bx + c = 0

Sum of the roots = -b/a

3x² + kx + 1 = 0

= sum of the roots = -k/3

-k/3 = 7

Now, Multiply both side by (-3) we get,

(-3)-k/3 = 7(-3)

k = -21

Thus, The value of k is -21

-TheUnknownScientist 72

7 0

2 years ago