4 years ago

Question 9

1 answer:

7 0

Since x is negative, substitute -x in for x and look for something that would be positive all the time.
A) -x * y = negative
B) x + y = positive, making B the answer

You might be interested in

How many solutions does this equation have?

Novosadov [1.4K]

That problem has only one solution

6 0

3 years ago

Explain what it means to have a correlation in a scatterplot.

Karo-lina-s [1.5K]

Answer:

A correlation exists in a scatter plot if there is a general trend in the outputs as inputs increase. If the outputs generally increase in value, then there is a positive correlation. If the outputs generally decrease in value, then there is a negative correlation.

3 0

3 years ago

Read 2 more answers

What is the square root of x if x = 25?

scoundrel [369]

Answer:

5 is your answer

Step-by-step explanation:

The $\sqrt{25}$ will equal to 5, because $5^2$ = 25

7 0

3 years ago

Read 2 more answers

What is the inverse of the functionf(x)=2x+1

mr Goodwill [35]

x = 2x + 1

x - 2x = 1

-x = 1

x = -1

3 0

4 years ago

Read 2 more answers

Find the sum of the first 100 terms in the series

iVinArrow [24]

Hello,

$\dfrac{1}{n} - \dfrac{1}{n+1} = \dfrac{1}{n(n+1)} \\

 \dfrac{1}{1*2} = \dfrac{1}{1} - \dfrac{1}{2} \\

 \dfrac{1}{2*3} = \dfrac{1}{2} - \dfrac{1}{3} \\

 \dfrac{1}{3*4} = \dfrac{1}{3} - \frac{1}{4} \\

...\\
 \dfrac{1}{n*(n+1)} = \dfrac{1}{n} - \dfrac{1}{n+1} \\



$

Adding member by member, we have

$\dfrac{1}{1*2} + \dfrac{1}{2*3} +\dfrac{1}{3*4} +...\dfrac{1}{n*(n+1)}=\\
 
\dfrac{1}{1} - \dfrac{1}{n+1} \\

= \dfrac{n}{n+1} \\

$

if n=100 sum $\boxed{= \dfrac{100}{101} }$

3 0

3 years ago