Answer:
=3√5
Step-by-step explanation:
Simplifying this expression involves prime factorisation of
45
45 = 3⋅3⋅5
(3 and 5 are the prime factors of 45)
So √45
=√3⋅3⋅5
=√32⋅5
=3⋅√5
=3√5
Answer:
the root of -1 is -1
Step-by-step explanation:
When multiplied by itself, the root is typically a specified number of times gives a specified number or quantity. So -1 × -1 = -1
So there you go
Answer:
2
Step-by-step explanation:
2 distinct real number zeros
Step-by-step explanation:
The discriminant b^2 - 4ac
= (-17)^2 - 4*4*3
= 241
So it has 2 distinct roots.
Answer:
Siobhan makes $9.18 per hour.
Step-by-step explanation:
9*20% is 1.8 so add that to 9 to get 10.80 then times 10.80 by 15% to get 1.62 so you subtract 1.62 from 10.80 to get $9.18
