Answer:
21
Step-by-step explanation:
Answer:
C
Steps
The A equation is impossible (even if it looks like solvable with quadratic formula)
Have a good day
Answer:
D.
Step-by-step explanation:
Hi there! You’re correct.
Twice the difference of nine and a number squared would look like

I hope this helped! :)
X>7
https://quickmath.com/webMathematica3/quickmath/inequalities/solve/basic.jsp#c=solve_stepssolveinequ...
Answer:
<u>The answer is 8.13</u>
Step-by-step explanation:
Let's elaborate the expression:
5 (1 3/8 plus 1.2)3 / .5 plus 10
5 (1.375 + 1.2)³ / 0.5 + 10
5 * 2.575³/ 10.5
85.369297/10.5
8.13
<u>The answer is 8.13</u>