This is what irrational means:
A number that cannot be expressed as a ratio between two integers and is not an imaginary number. If written in decimal notation, an irrational<span> number would have an infinite number of digits to the right of the decimal point, without repetition.
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so i think its the 3rd one but im not fully sure. I'm NOT that good at math
Hope this Helps!! :-)
We know the opposite side (10) and the adjacent side (7), so we can use tangent to find angle B. Since tan = opposite side/adjacent side, we can set up this equation: tan(B) = 10/7. We can get B on its own by making the equation this:

Now, we plug this into our calculator to get:
B = 55°, so angle B is 55°.
Let me know if you need any more help!
The equation that is equivalent is -2+(-7).
Answer:
c
Step-by-step explanation:
To find the maximum point, differentiate:
D' = -8p +160
Set to zero and solve for p:
D' = 0
⇒ -8p +160 = 0
⇒ 8p = 160
⇒ p = 20
Input p = 20 into the original equation to find D:
D = -4(20)² + 160(20) -310 = 1290
Therefore, the price is $20 and the maximum number of drills is 1,290