ANSWER
12 inches
EXPLANATION
Let the length of the rectangular painting be inches, then the width will be inches.
Since the diagonal is the hypotenuse, we can apply the Pythagoras Theorem to find the length.
We expand to obtain;
We simplify to obtain a quadratic equation in .
We divide through by 2 to obtain.
We factor to obtain
Since we are dealing with length we discard the negative value.
Hence the length is 12 inches
Answer:
$22.5
Step-by-step explanation:
The original price is $30 and it's on sale for 25% off. Since 25% is a quarter of the total price, I divided 30÷4=7.5. $7.5 is 25% of $30, so 7.5 is the amount taken off the original price. To find what Daysi paid, I subtracted 30-7.5=22.5. $22.5 is the result after the 25% off, so Daysi paid $22.5.
Answer:
it should be by the one with the left
Step-by-step explanation:
Answer:
$391
Step-by-step explanation: