Answer:
44
Step-by-step explanation:
The equation is of the form a
x
²+bx +c = 0 where
a = 5, b= -2, c= -2
The Discriminant is given by:
Δ=
b²−
4 * a * c
= (−2²)− (
4 * 5 * (
− 2
)
)
= 4
+ 40
= 44
My only issue is that it says numbers between. It does not say including. Therefore, I think you want to use > and < instead of the ones with equals signs attached.
Answer:
12/28
Step-by-step explanation:
All 18/48, 3/8, and 27/72 are simplified or non simplified versions of each other, as 27/72 and 18/48 can simplify to 3/8.
Answer:
127
Step-by-step explanation:
so h(g(-5)) means that solve the function in a specific way. This means that solve for function h but the x is the answer to function g when x is -5. So first what u do is solve for g. Plug -5 in so u get -5-3 which is -8. Then u plug in -8 to function h. U have 2(-8)^2-1. Then u solve the square which is 64. Then u multiply that by 2 to get 128. Then u minus one to get ure final answer of 127. Hope this helps :D
