Answer:
10 to the 1st power so the first one
Step-by-step explanation:
Answer:
A. -2x^2-2x-2
Step-by-step explanation:
(2x^2-5x-4)-(4x^2-3x-2)
distribute the minus sign
(2x^2-5x-4)-4x^2+3x+2
2x^2-5x-4
-4x^2+3x+2
-------------------------
-2x^2 -2x-2
The probability of landing on the shaded region of the figure is 0.10
<h3>How to find the probability of landing on the shaded region?</h3>
The probability of landing on the shaded region can be calculated as follows;
area of the bigger circle = πr² = 3.14 × 25² = 1962.5 cm²
area of the smaller region = πr² = 3.14 × 8² = 200.96 cm²
Therefore,
the probability of landing on the shaded region of the figure = 200.96 / 1962.5
the probability of landing on the shaded region of the figure = 0.10
learn more on probability here: brainly.com/question/22200970
#SPJ1
Answer:
It will take 50 years to decay from 512 grams to 121.5 grams.
Step-by-step explanation:
The decay formula :
where
N= amount of substance after t time
N₀= initial of substance
t= time.
A substance decays at a rate 25% every 10 years.
So, remaining amount of the substance is = (100%-25%)= 75%
, t= 10
Taking ln both sides
Now , N₀= 512 grams, N= 121.5 grams, t=?
Taking ln both sides
⇒t=50 years
It will take 50 years to decay from 512 grams to 121.5 grams.
Answer:
f(8)=4
Step-by-step explanation:
Put the equation in y=mx+b
-3x+12y=24
Add 3x to both sides
12y=3x+24
Divide 12 on both sides
y=3/12x+2
Simplify the fraction
y=1/4x+2
Substitute 8 for x
y=1/4(8)+2
y=2+2
y=4
So, f(8)=4
Hope this helps! :)
