Answer: -6 i think
Step-by-step explanation:
Answer:
V=lwh=5 x 9 x 3=135cm3
Step-by-step explanation:
Answer:
2 solutions
Step-by-step explanation:
x^4-6x^2-7=0
Replace x^2 by y
(x^2)^2-6x^2-7=0
y^2-6y-7=0
D=b^2-4ac= (-6)^2-4*1*(-7)= 36+28=64
sqrtD=8
y1=(-b-sqrtD)/2a=-2/2=-1
y2= (-b+sqrtD)/2a=14/2=7
x^2=-1(n0 roots) x^2=7 x=sqrt7 or x=-sqrt7
2 roots
Im not exactly sure what you are asking but 18 + 48 is equivalent and simplified!
Ella is 13 years, four months, and 19 days old.
