Answer:
Minimum 66 feet of molding that he needs.
Step-by-step explanation:
Given that a square ceiling has a diagonal of 23 ft.
If the sides of the square ceiling are 'a' feet, then applying Pythagoras Theorem we can write, a² + a² = 23²
⇒ 2a² = 23²
⇒ a = 16.2634 feet (Approximate)
Now, the perimeter of the square ceiling will be 4a = 65.05 feet.
If the cost of molding along the perimeter of the ceiling is in per foot, then a minimum of 66 feet of molding that he needs. (Answer)

Since they are both squared.
Evaluating 5^2 and 2^2 and finding the quotient also works.

The third option, "Evaluate 5^2 and 2^2 ...," and the last option, "Rewrite the expression as (5/2)^2 ...," are the correct choices.
Answer:
y=45
x=9
z= 9 root 2
Step-by-step explanation:
This is a right isosceles triangle, so
y=45
x=9
z= 9 root 2
9²+9²=z²
81+81=z²
162=z²
√162=z
z=9√2
Angles and sides
meaning the length of the sides of the triangle and all the angles <span />
Hello there!

Explanation:
↓↓↓↓↓↓↓↓↓↓↓↓
First you had to switch sides.

Then you divide by -4 from both sides of the equation.

Simplify

Next you had to add by 5 from both sides of the equation.

Simplify

You can also divide by 2 from both sides of the equation.

Simplify it should be the correct answer.

<u><em>Answer⇒⇒⇒⇒⇒r=-9</em></u>
Hope this helps!
Thank you for posting your question at here on Brainly.
Have a great day!
-Charlie