Hello :
6x² + 480 = 0
x² = -480/6
x² = - 80
in : R ... no roots
in : C
x² = 80i² ..... ( i² = -1)
the roots are : √80 i , - √80 i
Answer:
A. 31
B. 5
C. 9/31 or 0.29%
D. 2/31 or 0.06%
E. 0 or unknown
Step-by-step explanation:
A is the addition of all the entries, B is the number of entries that said snakes, C and D are about how many out of the total can give you the corresponding animal, chances are always part/total so for C it's 9/31 and D is 2/31. E is 0 or unknown because there is no "Frog" entries as favorite pet so it must be either 0 or unknown because you don't get the information
<em>pls brainliest if you found useful</em>
Answer:
41,6 cm
Step-by-step explanation:
Formula for Perimeter of a rhombus: P = 2L + 2H (H is the height, L the length)
Perimeter: 160 cm = 2L + 2(38,4 cm), or
160 cm + 76.8 cm + 2L, or
83.2 cm = 2L
and so the height (altezza) is H = 83.2 cm / 2 = 41,6 cm
