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

Identify the domain of the function shown in the graph

natta225 [31]

D. a domain is the furthest region that the graphed digits reach

5 0

4 years ago

Read 2 more answers

Convert 714 years to minutes. (please show the steps to how you did the problem.)

Karolina [17]

1yr 525948.77
—— = ———————
714yr. X min

Now, cross multiply

X min = 714 yr
———. X 525948.77 min ➡️ x min = 375527421.78000003 min

714 years = 375527421.78000003 min

3.753e+ 8

5 0

3 years ago

The mayor of a town has proposed a plan for the construction of an adjoining community. A political study took a sample of 900 v

Aleks04 [339]

Answer:

P-value = 0.0367

Step-by-step explanation:

This is a hypothesis test for a proportion.

The claim is that the percentage of residents who favor construction is significantly over 42%.

Then, the null and alternative hypothesis are:

$H_0: \pi=0.42\\\\H_a:\pi>0.42$

The sample has a size n=900.

The sample proportion is p=0.45.

The standard error of the proportion is:

$\sigma_p=\sqrt{\dfrac{\pi(1-\pi)}{n}}=\sqrt{\dfrac{0.42*0.58}{900}}\\\\\\ \sigma_p=\sqrt{0.000271}=0.016$

Then, we can calculate the z-statistic as:

$z=\dfrac{p-\pi-0.5/n}{\sigma_p}=\dfrac{0.45-0.42-0.5/900}{0.016}=\dfrac{0.029}{0.016}=1.79$

This test is a right-tailed test, so the P-value for this test is calculated as:

$\text{P-value}=P(z>1.79)=0.0367$

4 0

3 years ago

Vector component of ū and w are as

Helen [10]

Answer:

r = ( -14.4 , 6.47 )

Step-by-step explanation:

in the photo you will find all the steps

7 0

2 years ago

What is an equivalent expression of -5r+8r+5

rjkz [21]

The answer is. 3r + 5

6 0

4 years ago

Read 2 more answers