3 years ago

2x + y = 5

Mathematics

2 answers:

romanna [79]3 years ago

8 0

(2x + 3x) + (y - y) = (5 + 10)

solve and get this:

5x = 15

5x/5 = 15/5

x = 3

Verizon [17]3 years ago

6 0

5x=15
X=3
2(3)+y=5
Y= -1

(3,-1)

You might be interested in

What is 2+2

ad-work [718]

Answer:

Step-by-step explanation:

2+2 is 4

5 0

4 years ago

A customer service survey was conducted of 500 customers: 250 men and 250 women. The data on one of the questions show that 175

Lisa [10]

Answer:

1,335

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

What is the difference between the following two regression equations? ModifyingAbove y with caret equals b 0 plus b 1 xy=b0+b1

Leona [35]

Answer:

A. The first equation is for sample data; the second equation is for a population.

Step-by-step explanation:

The first equation is y = $b_0 + b_1x$ , this is the equation for sample data as the intercept ( $b_0$ ) and the slope parameter( $b_1$ ) both are calculated then we have got this and these values are not taken as given.

The Second equation is $y = \beta _0 +\beta _1x$ , this is the equation for population data as we can't calculate these $\beta _0$ and $\beta _1$ as we take these values as given and also we do testing for $\beta$ parameter using t test and it is sure that testing is always done on population data not on sample data.