63,889 rounded to the nearest hundred is 63,900
No. The last digit is 4, telling us that the whole thing is a multiple of 2.
Also, the sum of its digits is 18 ... divisible by 3 ... telling us that the whole thing is divisible by 3.
Answer:
0
Step-by-step explanation:
First you need to distribute
-16 = 2u-10-5u
Combine like terms
-16 = -3u-10
Add 10 to each side
-6 = -3u
Divide -3 from each side
u = 2
Answer:
∡B = 60°
Step-by-step explanation:
find BC using Pythagorean Theorem:
5² + BC² = 10²
25 + BC² = 100
BC² = 75
BC =
BC = which is 5
this indicates that ∡B must be 60° because the ratio of sides in a 30-60-90 triangle are 1 : : 2