Answer:
her mom spent 11 dollars
Step-by-step explanation:
20-9 is 11
Her mom spent $11
$20-9= $11
81 squared feet
5
Because two times 5 equals ten
x and y = 5√2.
This is a 45:45:90 triangle so length of x = length of y.
In this triangle the ratio of the sides is 1:1:√2
Finding length of x and y:
1/√2 = x/10
√2x = 10
x = 10/√2
= 10√2/2
= 5√2.
