Answer:
2 real solutions
Step-by-step explanation:
y = -x^2 + 3x + 5
First find the the discriminant:
using b² - 4(a)(b)
(3)²- 4(-1)(5)
=9+20
=29
since the discriminant is more than 0, there are 2 real solutions
12.5 Quarts
Explanation:
It takes 4 cups to make a quart so 2.5 would equal 0.625 quart
Then you would take 0.625 x 20 which would then equal 12.5 Quarts
The answer is A.
3(12 + 6) gives you 36 + 18 because 3 times 12 is 36 and 3 times 6 is 18
Answer:
The volume of the marble is 47 ml
The volume of the water is 100 ml
Step-by-step explanation:
we know that
The volume of the marble is equal to the change in water level
so
To find out the volume of the marble subtract 100 ml from 147 ml

The volume of the water no change
The volume of the water is 100 ml