Answer:
31
Step-by-step explanation:
you are going to add, first your going to add all the numbers your going to start from the largest to the smallest number and that's how you would find your perimeter
Answer:
x = 15
Step-by-step explanation:
We assume you want to find the value of x.
Know (or prove) that in this geometry, all of the right triangles are similar. That means the ratios of corresponding sides are proportional.
short side / hypotenuse = 9/x = x/25
x^2 = (9)(25) . . . . . . . . . . multiply by 25x ("cross multiply")
x = √((9)(25)) = (3)(5) . . . take the square root
x = 15
I would say the answer is B because A would be going to a thousand and you dont wanna do that so i think its a 50% chance its B
Answer:
64
Step-by-step explanation:
2x × 4y
x=2 and y=4
Put x as 2, and y as 4.
2(2) × 4(4)
4 × 16
= 64
Answer:
two real roots
Step-by-step explanation:
y = -2x^2 + 9x - 7
This is in the form
ax^2 +bx+c
a = -2 b = 9 c = -7
The discriminant is
b^2 -4ac
(9)^2 - 4(-2) (-7)
81 - 56
25
Since the discriminant is greater than zero, there are two real roots
