Answer:
I'm not sure what you mean but thank you!
Answer:
I could be wrong, but if a function says f(x)=#, than the domain (the x values) range from negative infinity to infinity, where for every x value, the y value is always #, so in this case, the value of d (or x) would be negative infinity to infinity, written as a domain, surrounded by parentheses.
Step-by-step explanation:
Answer:
1/36
Step-by-step explanation:
1/4 ÷ 9
= 1/4 x 1/9
= 1/36
Answer: A
Step-by-step explanation:
2x²-2x-9=0
this is a quadratic equation so we will use the quadratic formula .
Δ= b²-4*a*c
let's calculate Δ to khow how many solutions this equations have .
Δ= (-2)²-4*2*(-9)
= 76
we notice that 76>0
so this equation has two solutions : (-b-√76)/4 and (-b+√76)/4
- let's calculte the values :
- (-b-√76)/4=
(-b+√76)/4=
the trick here is to notice that :
= 
= 
= 2
Now we will simplify Δ by factoring by 2
=
so the answer is a .
Answer:
272.3
Step-by-step explanation:
cos57 times 500