Answer:
.08344924
Step-by-step explanation:
Answer:
E = number of Ella's stories
A = number of Anna's stories
E = A + 8
if A = 10, then
E = 10 + 8
E = 18
Answer:
The number of days the number will be greater than 60 is 45.
Step-by-step explanation:
Since there are 80 total numbers and a number of the day can be repeated, then there is the same chance each day of picking one of the numbers. There are 20 numbers greater than 60 between 1 and 80. So, the chances of picking a number greater than 60 each day is 20/80, or 1/4 (25%). This probability is the same each day and we would take the total number of school days (180) multiplied by this probability to get our predicted number of days the number would be greater than 60 during the school year. 180 x .25 = 45.
Answer:
5 a b (5 b + 1)
Step-by-step explanation:
Factor the following:
25 a b^2 + 5 a b
Factor 5 a b out of 25 a b^2 + 5 a b:
Answer: 5 a b (5 b + 1)
The perfect square monomial and its square root are shown in options 1, 2, and 5.
- A perfect square in mathematics is an expression that factors into two equally valid expressions. A monomial is a single phrase that is made up of the product of positive integer powers of the constants, variables, and constants. Consequently, a monomial that factors into two monomials that are the same is called a perfect square monomial.
- 1) 121, 11
- 11² = 121
- A perfect square monomial and its square root are represented by this equation.
- 2) 4x², 2x
- (2x)² = 4x²
- A perfect square monomial and its square root are represented by this equation.
- 3) 9x²-1, 3x-1
- (3x-1)² = 9x²- 6x +1
- This phrase does not depict a square monomial and its square root in perfect form.
- 4) 25x, 5x
- (5x)² = 25x²
- This phrase does not depict a square monomial and its square root in perfect form.
- 5) 49(x^4), 7x²
- (7x²)² = 49(x^4)
- A perfect square monomial and its square root are represented by this equation.
To learn more about monomial, visit :
brainly.com/question/9183135
#SPJ4