Answer:
$16
Step-by-step explanation:
Let $x be the amount of money Daniel spent.
Tracy spent $38 less than 3 times what Daniel spent.
Daniel spent = $x
3 times what Daniel spent = $3x
$38 less than 3 times what Daniel spent = $(3x-38)
So,
Tracy spent = $(3x-38)
If Tracy spent $10, then
Hence, Daniel spent $16
Answer:
The length of the diagonal of the rectangle is of units.
Step-by-step explanation:
Pythagorean theorem:
The square of the hypothenuse h is equal to the sum of the squares of sides a and b, that is:
Diagonal of a rectangle:
The diagonal is the hypothenuse, while the sides are a and b.
In this question:
The height has coordinates are y = 9 and y = 12, so the height is
The length has coordinates at , so the length is
Diagonal:
The length of the diagonal of the rectangle is of units.