Answer:
a
Step-by-step explanation:
Answer:
D. 30.5
Step-by-step explanation:
Given that A, B, C, D, and E are collinear,
AE = 38,
BD = 15, since segment BC = CD = DE, therefore
BD = ⅔ of BE
15 = ⅔*BE (substitution)
Solve for BE
Multiply each side by 3
15*3 = ⅔*BE*3
45 = 2*BE
Divide both sides by 2
45/2 = BE
22.5 = BE
BE = 22.5
Find AB:
AB + BE = AE (segment addition postulate)
AB + 22.5 = 38 (Substitution)
AB = 38 - 22.5 (Subtracting 22.5 from each side)
AB = 15.5
Find length of segment AD:
AB + BD = AD (segment addition postulate)
15.5 + 15 = AD (Substitution)
30.5 = AD
AD = 30.5
Formula of surface area of a sphere is 4
.
Hence it is 4
Answer:
y=-x-1
Step-by-step explanation:
Answer:
Step-by-step explanation:Step 1: Use quadratic formula with a=1, b=-2, c=-2.
x=
−b±√b2−4ac
2a
x=
−(−2)±√(−2)2−4(1)(−2)
2(1)
x=
2±√12
2
x=1+√3 or x=1−√3
Answer:
x=1+√3 or x=1−√3
