Answer:
1.753 g
Step-by-step explanation:
Half life of Einsteinium = 20.5 days
Time elapsed = 31 days
Initial quantity of the substance = 5g
The formula to apply is;
Where
N(t)=quantity of a substance remaining
No =Initial quantity of the substance = 5g
t= time elapsed=31 days
t1/2 = half life of the substance= 20.5 days
N(t)=5 * {1/2} ^ {31/20.5}
N{t} = 5 * {0.5}^1.5
N{t} = 5*0.3506
N{t} =1.753 g
Answer:
effective green time = 35 seconds
Step-by-step explanation:
given data
cycle length = 60 seconds
effective red time = 25 seconds
solution
we get here effective green time that is express as
effective green time = cycle length - effective red time ...........................1
put here value and we will get
effective green time = 60 seconds - 25 seconds
effective green time = 35 seconds
Answer:
32
Step-by-step explanation:
Substitute 4 for x, -3 for y and -5 for z.
Then the original expression becomes:
-4(-3 - 5), or -4(-8) = 32
Answer:
1.) L=5 W=4 H=1. 2.)L=5 W=4 H=2. 3.)L=5 W=4 H=5
Step-by-step explanation:
you look at the sides and the front and count the cubic units
Answer:
c. 24/25
Step-by-step explanation:
1. Use SOH CAH TOA
2. Highlight C, so you know what your looking for
3. Since were finding the cosine of C we need the side adjacent(next to) and the hypotenuse of C. We know this because of CAH(cosine= adjacent/hypotenuse
4. C is closest to 24 so we have our adjacent side as 24, this will be the numerator
5. Then find the hypotenuse, which is opposite of the 90 degree angle, marked by the square box in the triangle
6. Our Hypotenuse is 25, which will be our denominator
<h3>7. Giving the answer is 24/25</h3>
