Answer:
6
Step-by-step explanation:
To check my work I used desmos
10r² + 3 = 813
10r² = 813 - 3
10r² = 810
r² = 810 ÷ 10
r² = 81
r = √81
r = <u>9</u>
So, the value of <em>r </em>is 9
<em>Hope </em><em>it </em><em>helpful </em><em>and </em><em>useful </em><em>:</em><em>)</em>
Answer:
36
2 x 18
2 x 2 x 9
2 x 2 x 2 x 3
Step-by-step explanation:
Answer:
C)
Step-by-step explanation:
Answer:
4
Step-by-step explanation:
Given that 


Now,


This can be written as
[as
]

[ by using equation (i)]
=4
Hence, 