Answer: 20 cm
Step-by-step explanation:
Answer:
BC = 39
Step-by-step explanation:
<h3>a²+b² = c²</h3><h3>15²+36² = 1521</h3><h3>

</h3><h3>=39</h3>
Triangle ABC and triangle DCE are congruent, so line DE = line AB
Use the cosine rule to find angle ACB






Angle ACB = 48.1°
Answer:
3.2 x 10^13
Step-by-step explanation:
(8x10^4)(4x10^8)
reorder the terms using the commutative property
(8x4)x(10^4x10^8)
multiply
32x (10^4 x 10^8)
= 32 x 10^4+8
= 32 x 10^12
now convert to scientific notation
=3.2 x 10^13
Answer:
4
Step-by-step explanation:
w = 4 units