Given that the problem does not specify if
y is <span>opposite, adjacent or hypotenuse side, I will provide two solutions to this problem.
Case 1. Y is the hypotenuse side. (See figure 1)
According to the Pythagorean Theorem, for a right triangle, it is true that:
</span>

<span>
being c the hypotenuse side and a and b the opposite and adjacent side respectively. So, for the figure 1 it is true that:
</span><span>
z = a = 15cm
x = b = 9cm
y = c = ?
</span>

∴

Case 2. Y is the opposite side (The same happens as if it were the adjacent side). (See figure 2)
From the equation:

For the figure:
y = a = ?
x = b = 9cm
z = c = 15cm
We need to isolate a, so:


∴

Answer:
Omar should weigh 9 pounds and 7 ounces
Step-by-step explanation
Each pound is equal to 16 ounces. So with 5 ounces each week for 4 weeks in all, you get a total of 20 ounces. Add the first 3 to get 23 before taking away 16 ounces to add another pound to the 8. This leaves you with 7 ounces. SO Omar should weigh 9 pounds and 7 ounces after 4 weeks.
Answer:
first answer is 6 wholes and 8/15 and the rest is on the page I attached
Answer:
b.) Subtracting 5 then dividing both sides by -2
Step-by-step explanation:
Given expression:
⇒ -2x + 5 = 9
To solve this equation, first we need to remove the 5 on the left side. Then divide both sides by -2.
When done so:
⇒ -2x = 9 - 5
⇒ -2x = 4
⇒ -2x/-2 = 4/-2
⇒ x = -2