Answer:
x + 52 + 78 = 180
Step-by-step explanation:
By angle sum property of a triangle:

Answer:
189
Step-by-step explanation:
45% x2= 90%
10% of 90= 9
90+90=180
plus that 10%
180 + 9 = 189
sorry if I'm wrong I'm trying
Answer:
Answer:
1). Option (A)
2). Option (A)
Step-by-step explanation:
1). A worker bee has the mass = 0.00011 kg
In scientific notation we can convert the mass of bee as,
0.00011 =
=
Since 1.1 ≈ 1,
Therefore, 1.1 × 10⁻⁴ ≈ 1 × 10⁻⁴ kg
Option (A) is the answer.
2). An African elephant has a mass = 8139 kg
In scientific notation,
8139 = 8.139 × 10³
Since, 8.139 ≈ 8
Therefore, 8139 kg = 8.139 × 10³ kg
Option (A) is the answer.
Step-by-step explanation:
Hope this helps! ;)