Answer:
9. 
10. 
Step-by-step explanation:
9. 
Evaluate when x = 10.
Substitute x = 10 into the expression

Apply the negative exponent rule (
)
Thus:

10. 
Evaluate when a = 6 and b = 3
Substitute

Apply the negative exponent rule




Answer:
Hello There!
Step-by-step explanation:
Equivalent expressions are expressions that work the same even though they look different.
Examples of two equivalent expressions are:
-4(x + 2) and 4x + 8
-2y+5y−5+8 and 7y+3
These are equivalent expressions as they have the same value.
hope this helps,have a great day!!
~Pinky~
Need help in this question asap srry i need points
If you are talking about Multiplying them together then it’s 1/3 because you go 8x3
And 9x8 which makes 24/72 simply and then you get 1/3
Step-by-step explanation:
By arc sum Postulate of a circle:
2 x + 3x + 4x = 360°
9x = 360°
x = 360°/9
x = 40°
3x = 3* 40° = 120°
By inscribed angle theorem:
By tangent secant theorem:
Since, measure of central angle is equal to the measure of its corresponding minor arc.
By angle sum Postulate of a triangle: