Answer:
Yes
Step-by-step explanation:
Plug in the coordinate (5,9) into the equation
9=3(5)-6
9=15-6
9=9
Hello :
<span>(x - 3)² + y² = 7²
the center is : A(3 , 0 ) and radius r = 7
the </span> point D is on the interior if : AD <span>< 7
</span>the point D is on the exterior if : AD > 7
the point D is circumference of the circle if :AD = 7
The ratio of 30% to 60% she should mix is; 3:2
<h3>Ratio of mixing</h3>
From the task content;
Let the volume of 30% sulphuric acid
solution and 60% sulphuric acid solution to be mixed be x and y respectively.
Hence, it follows that;
By solving simultaneously, it follows that;
Therefore, Ratio x/y = 6/4 = 3/2
Read more on simultaneous equations;
brainly.com/question/185757
Answer:
4 root 37
Step-by-step explanation:
