Answer:
no
Step-by-step explanation:
Example:
- 9 is an odd number, but 9 can be divided by 3, so 9 is not a prime number.
- 49 is an odd number, but 49 can be divided by 7, so 49 is not a prime number.
Answer:
I answered it as C, but the correct answer is B :)
Answer:
5.0 × 10-5
Step-by-step explanation:
5 cm divided by 1 km
Tina can finish in 5 hours
Bill takes two hours longer than Tina.
5+2=7
Bill takes 7 hours to cut the lawn.
7+5=12
It takes both of them working together 12 hours. Hope this helped!
Answer:
The discriminant is -7
Step-by-step explanation:
The discriminant of a quadratic function/equation(ax^2+bx+c = 0) is calculated as:

Here
b is the co-efficient of x
a is the co-efficient of x^2
and c is the constant
Given equation is:

Here
a = -2
b = 5
c = -4
Putting the values in the formula for discriminant

As the discriminant is negative, the equation has no real solution.
Hence,
The discriminant is -7