A represents it, since it’s on the negative side
Simplify the expression.
24
The answer would be c. If you Take Pi=3.14 and multiply it by the radius=30 then u get 94.2
Answer:
The dimensions of the box is 2 units.
Step-by-step explanation:
Volume of cube, V = 8 cubic units
Let the length of the side is a.
So,
The volume of the cube is
So, the dimensions of the box is 2 units.
Answer:
a² - 14a - 15 = 0 (quadratic equation)
Emily's age = 15 years
Tuli's age = 15 - 10 = 5 years
Step-by-step explanation:
let
Emily age = a
Tuli age = a - 10
Two years ago their ages will be as follows.
Emily's age = a - 2
Tuli's age = a - 10 - 2 = a - 12
The product of their ages 2 years ago is 39.
(a - 2)(a - 12) = 39
a² - 12a - 2a + 24 - 39 = 0
a² - 14a - 15 = 0 (quadratic equation)
To get a
a² + a - 15a - 15 = 0
a(a + 1) - 15(a + 1)
(a + 1)(a - 15)
a = -1 or 15
we can only use 15 as it is positive.
