Answer:
A.
Step-by-step explanation:
you have to find the discriminant
b²-4ac for each equation
if discriminant < 0 no real solutions because will be negative under the squareroot whhan you try to find the roots
if discriminant = 0 there is only one solution
if discriminant > 0 two real solutions
for your given problems
A. discriminant =(-2)²-4*2*15 will be negative
The polyhedron has:
6 Faces, 8 vertices and 12 edges <u>in</u><u> </u><u>total</u><u>.</u>
But
3 Faces, 7 vertices and 7 edges <u>are</u><u> </u><u>visible</u><u>.</u>
Answer:
-2 Celsius >-5 Celsius is the answer.
Answer:
The temperature at the top of a mountain was -3°C in the afternoon. It fell down by 13°C at night. That will bring it to -16°
Answer:
11 feet
Step-by-step explanation:
Squares have the same length and width. So you just take the square root of teh area to find both.
√121 = 11
