The first one is 5.3 you multiply 4x4 which is 16 then divide by 3 which then gives you the answer
I think it's the third one b/c
the associative property states that it doesn't matter how you group the
numbers in parenthesis in addition.
Step-by-step explanation:
it is negative 20 I'm pre sure
<span>when the altitude is </span>drawn from the vertex of the right angle<span> of a right triangle to its hypotenuse, the altitude equals the product</span> of the two segments of the hypotenuse<span>.
(w+9)</span>²=8*18=144
w+9=12 or w+9=-12
w=3 (discard the negative number)
use the same method, z=√(9*11)=3√11
next, you can use the Pythagorean theorem to find x and y.
x=√(9²+99)=√180=6√5
y=√(11²+99)=√220=2√55
