Answer:
A. 60°
Step-by-step explanation:
There's a very straight-forward explanation for this, thank god! XD
For this type of problem, there's a rule to follow for the outside angle. X and 120 should equal 180, so all you need to do is fill that gap.
180-120 = 60
60 is your answer because it completes the whole angle.
Answer:
Time taken = 9987.38 years
Step-by-step explanation:
We have plutonium-240 decays according to the parent function
![Q(t)=Q_oe^{-kt}](https://tex.z-dn.net/?f=Q%28t%29%3DQ_oe%5E%7B-kt%7D)
k is the decay constant,0.00011
k = 0.00011
We need to find how long will it take 27 grams of plutonium-240 to decay to 9 grams.
Q(t) = 9 g
Q₀ = 27 g
Substituting
![Q=Q_oe^{-kt}\\\\9=27e^{-0.00011\times t}\\\\-1.0986=-0.00011\times t\\\\t=9987.38years](https://tex.z-dn.net/?f=Q%3DQ_oe%5E%7B-kt%7D%5C%5C%5C%5C9%3D27e%5E%7B-0.00011%5Ctimes%20t%7D%5C%5C%5C%5C-1.0986%3D-0.00011%5Ctimes%20t%5C%5C%5C%5Ct%3D9987.38years)
Time taken = 9987.38 years
IF THIS IS FOR 40 WHAT IS IT FOR 80
<span>
For maximum area, you've got a square. So 10 x 10. Proof 2x + 2y = 40 x + y = 20 Max xy =Max x(20-x) = Max 20x - x^2 Take 1st derivative and set to zero 20 - 2x = 0 2x = 20 x = 10 So y = 10</span>
Answer:
16 cm
Step-by-step explanation:
The length of the hypotenuse of a 45°-45°-90° triangle is 16 cm.
The value of 9 in 901,532 = 900,000
the value of 9 in 157,900 = 900
to find out how many times greater, we must divide
900,000 / 900 = 1000
so it is 1000 times greater <==