8.9. round the first 8 after decimal to 9 because the 8 after is 5 or above.
Answer: The answer would be No, Yes, No.
Step-by-step explanation:
Look at the grid, you can see that it has 100 units in all.
0.42 equals 21/50, so they are both wrong. The denominator would have to be 100. The only logical one would be the second one.
this option is incorrect
A straight angle is one full revolution.
Step-by-step explanation:
Straight angle = 180°
Angle take 360° in one revolution
The answer is 12.1, add both 4.5 and 7.6 and you get 12.1
simplifying
we get 
Option B is correct.
Step-by-step explanation:
We need to simplify: ![\frac{\sqrt{4}}{\sqrt[3]{4}}](https://tex.z-dn.net/?f=%5Cfrac%7B%5Csqrt%7B4%7D%7D%7B%5Csqrt%5B3%5D%7B4%7D%7D)
Solving:
![\frac{\sqrt{4}}{\sqrt[3]{4}}](https://tex.z-dn.net/?f=%5Cfrac%7B%5Csqrt%7B4%7D%7D%7B%5Csqrt%5B3%5D%7B4%7D%7D)
We know that √ = 1/2 and ∛=1/3

Applying exponent rule: 

So, simplifying
we get 
Option B is correct.
Keywords: Solving Exponents
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