Answer:
(a) discriminant is positive, 76
(b) the above tells you there are two real roots
Step-by-step explanation:
the discriminant is 'b² - 4ac'
3x² - 2x - 6 = 0 ∴ a = 3, b = -2, c = -6
(-2)² - 4(3)(-6) = 4 + 72
Answer:
1/9
Step-by-step explanation:
3 red
2 blue
5 green
Total
3
+
2
+
5
=10
Probability of blue is
2
10
~~~~~~~~~~~~~~~~~~~~~~~
Second condition:
3 red
1 blue
5 green
New total
3
+
1
+
5
=
9
Probability of green is
5
9
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Total probability of selecting this path is:
2
10
×
5
9
=
2
9
×
5
10
=
2
9
×
1
2
=
1
9
Hello from MrBillDoesMath!
Answer:
-9 sqrt(5)
Discussion:
-2 sqrt(20) - sqrt(125) =
-2 *2 sqrt(5) - sqrt(125)= as 20 = 4* 5
-4sqrt(5)- 5 sqrt(5) = as 125 = 25 *5
(-4 -5) sqrt(5) =
-9 sqrt(5)
Thank you,
MrB
Answer:
A.
Step-by-step explanation:
Route the images in your mind. A. is a 180° view of H.
Answer:
a six sided dice roling a seven
Step-by-step explanation:
