When ever you combine different elements the chemical properties change because elements are different , unless you combine the exact same elements.
the shorter sides are 4 inches and the longer sides are 21 inches long
1+y>-13. I'm assuming that you're reffering to wanting an equation by your question.
As stated in (i), the equation of the line is: ln y = -0.015x + .26
(By the way, I checked your answers for parts (i) and (ii) and they are both correct)
(iii)
Plug in (1.1) for y and solve:
ln (1.1) = -0.015x + .26
0.095 = -0.015x + .26
-0.165 = - 0.015x
10.979 = x
Answer: x = 10.979
The circumference of the circle is 75.36 cm.
Diameter of the circle is 24 cm,

- Step 2: Formula used and calculation:
Circumference of the circle is
.
So, Radius, r = 24/2 = 12 cm.
Now, Putting the value in the above formula, we get
2 × 3.14 ×12 = 3.14 × 24 = 75.36 cm.
Hence, the circumference of the circle is 75.36 cm.
Learn more about circumference of the circle, refer:
brainly.com/question/23964435