Answer: Choice A and choice C
The fractional exponent of 1/2 means that the root index is 2, which is a square root. So (13+8)^(1/2) becomes sqrt(13+8) = sqrt(21)
"sqrt" is a common abbreviation of "square root"
Answer:
∠ CDB = 43°
Step-by-step explanation:
Angles subtended at the circumference by the same arc are congruent.
The arc CB subtends both ∠ CAB and ∠ CDB , thus
∠ CDB = ∠ CAB = 43°
Answer:
1. h,k
2. -3, -5
3. 1, 7
4. 9, -2
5. -4, -6
Step-by-step explanation: