explain the steps you would take to determine if the point (4,7) is a solution to the equation y=1.25x+2
1 answer:
Answer:
Point (4,7) completely satisfies the equation and is a solution to the equation.
Step-by-step explanation:
Given:
Equation:
To check if the point (4,7) is a solution to the given equation.
Solution:
The solution of an equation is given as which completely satisfies the equation.
To check if the point (4,7) is a solution to the given equation, we will plugin and
in the given equation and see if it satisfies it or not.
Plugging in point (4,7) in the equation:
Simplifying.
The above equation is always true, and hence point (4,7) completely satisfies the equation and is a solution to the equation.
You might be interested in
Answer:
Hi your question is incomplete attached below is the complete question
answer : p ( X < 725 ) = 0.0116
Step-by-step explanation:
Given data:
Average life of bulbs (μ ) = 750 hours
standard deviation (б ) = 55 hours
n ( sample size ) = 25
X = 725
<u>Probability that the mean life of a random sample of 25 bulbs will be less than725 hours </u>
p ( X < 725 ) = p (( X - μ )/ б √n < 725 - 750 / 55√25 )
= P ( Z > - 2.27 )
Hence P ( X < 725 ) = 0.0116 ( using Z-table )
