The answer to this is -76
Answer:
<u><em>24 pens are blue</em></u>
Step-by-step explanation:
32 pens in total and 3/4 of it are blue.
32 ÷ 4 = 8
8 × 3 = 24
<u><em>24</em></u> of the 32 pens are blue pens
Miranda's I think because her car may take more gas but it goes a farther distance
Answer:
- JK = 6.5
- KM = 5.5
- not congruent
Step-by-step explanation:
JK = K-J = (-4) -(-10.5) = 6.5
KM = M -K = 1.5 -(-4) = 5.5
6.5 ≠ 5.5, so the segments are not congruent.
Answer:
2,674.14 g
Step-by-step explanation:
Recall that the formula for radioactive decay is
N = N₀ e^(-λt)
where,
N is the amount left at time t
N₀ is the initial amount when t=0, (given as 42,784 g)
λ = coefficient of radioactive decay
= 0.693 ÷ Half Life
= 0.693 ÷ 18
= 0.0385
t = time elapsed (given as 72 years)
e = exponential constant ( approx 2.7183)
If we substitute these into our equation:
N = N₀ e^(-λt)
= (42,787) (2.7183)^[(-0.0385)(72)]
= (42,787) (2.7183)^(-2.7726)
= (42,787) (0.0625)
= 2,674.14 g
