X is amount of books.
x ≤ 9 if the books are 2 inches thick.
x ≤ 18 if the books are 1 inches thick.
Equation for 1 inches.
x ≤ 18
Equation for 2 inches.
2x ≤ 18
Equation for both.
x + 2y = 18
y is amount of 2 inch books
This one equation above is standard form.
Answer: 1/5
explanation: 10,11,12,13,14,15,16,17,18, and 19 all have a one in the tents place. These are 10 numbers. Out of the 50 numbers that can possibly be chosen, only 10 have a one in the tens place. The chance of you picking these numbers is 10/50, or 1/5 when simplified
Answer:
see explanation
Step-by-step explanation:
(a)
To evaluate f(- 2) substitute x = - 2 into f(x) , that is
f(- 2) = 9 - 4(- 2)² = 9 - 4(4) = 9 - 16 = - 7
(b)
Similarly substitute x = - 3 and x = 3 into f(x)
f(- 3) = 9 - 4(- 3)² = 9 - 4(9) = 9 - 36 = - 27
f(3) = 9 - 4(3)² = 9 - 4(9) = 9 - 36 = - 27
(c)
let f(x) = 0 , then
9 - 4x² = 0 ( add 4x² to both sides )
9 = 4x² ( divide both sides by 4 )
= x² ( take the square root of both sides )
± 
= x
± 
= x
± 
= x
That is x = - or x =
$4500x3.75% (or .0375)= $168.75
$2,200+$168.75=$2,368.75
Answer:
87.92 or 88 inches(simplified)
Step-by-step explanation:
circumference = 2 Pi R R= 1/2 diamater
ribbon = circumference
ribbon = 2x3.14x14 = 87.92 inches
