The choice A will be the correct choice dealing with proportion
(2x 6)(x-1)=0 happy to help :)
Answer:
12
Step-by-step explanation:
Since this is a right triangle, we can use the Pythagorean theorem
a^2 + b^2 = c^2 where a and b are the legs and c is the hypotenuse
a^2 + 9^2 = 15^2
a^2 +81 =225
Subtract 81 from each side
a^2 = 225-81
a^2 = 144
Take the square root of each side
sqrt(a^2) = sqrt(144)
a=12
The answer is: [C]: " 3.200 * 10⁷ h " .
_________________________________________________
Explanation:
________________________________
19.2 * 10⁸ min * (1 hr / 60 min) ;
= (19.2 * 10⁸)
_______________ ;
60
_____________________________
Divide EACH SIDE of the fraction by "10" ; to get:
___________
(19.2 * 10⁷)
_______________ ;
6
______________________________
⇒ (19.2) ÷ (6) = 3.2 ; so rewrite as:
_________________________________________________________
3.2 * 10⁷ ; which corresponds with:
Answer choice: [C]: " 3.200 * 10⁷ h " .
_________________________________________________________
Answer: a.
Step-by-step explanation:
46 is subtracted by n to get -21 so the equation is 46 - n = -21
Add n on both sides; 46 - n + n = -21 + n; 46 = -21 + n
Add 21 on both sides; 46 + 21 = -21 + n + 21; 67 = n
So n = 67
