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Fiesta28 [93]
3 years ago
14

The radioactive substance cesium-137 has a half-life of

Mathematics
1 answer:
statuscvo [17]3 years ago
7 0
A(t)=A0*(1/2)^(t/30)
where t=elapsed years
A0=initial mass at t=0.
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Find all numbers whose absolute value is 3 . If there is more than one, separate them with commas. If there are no such numbers,
adelina 88 [10]

Answer:

3, and -3

Step-by-step explanation:

Because absolute value is the distance away from zero, |3| and |-3| would both be 3 units away from 0. Be sure to have the negative on the inside if you're trying to make something positive, otherwise -|3| means that the absolute value of 3 would then become negative since the negative sign isn't a part of the absolute. hope this helps!

3 0
3 years ago
WHAT IS THE ANSWER PLEASE
viva [34]

Answer:

.top the at is 71 ebecaus  because one third the IsIs

Step-by-step explanation:

6 0
3 years ago
Leyla drops a penny from a height of 150 m. How long will it take the penny to hit the ground? Use the formula h(t)=−4.9t^2+vt+h
torisob [31]
To determine the time it  takes for the penny to reach the ground, we use the relation of height and time given above. We do  as follows:
<span>
0 =−4.9t^2+(0)t+150
t = sqrt( 150/4.9)
t = 5.53 s

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4 0
3 years ago
Read 2 more answers
Peter borrowed a sum of R12 850.00 at the beginning of a year with a certain simple interest rate. After 14 quarters, in a diffe
ladessa [460]

The original annual simple interest rate, rounded to two decimal places, is 3.79%

What is the formula for simple interest?

The simple interest on a loan or deposit is determined as the principal multiplied by the simple interest rate and time

I=PRT

The first loan:

P=12 850.00

R=r(assume it is r)

T=4 years

I=12 850.00*r*4

I=51400r

The second loan was taken after 14 quarters the first was taken out, which is the same as after 3.5 years, hence, the interest on the second loan is only for a half a year

P=3 273.00

R=0.5r( half of the interest on the first loan)

T=0.5 years

I=3 273.00*0.5r*0.5

I= 818.25r

Total interest=51400r+818.25r

Total interest=52218.25r

total interest paid=1 980.00

1 980.00=52218.25r

r=1 980.00/52218.25

r=3.79%

Find out more about simple interest on: brainly.com/question/1115815

#SPJ1

5 0
2 years ago
SOMEONE PLEASE HELP ME ASAP PLEASEEE!!!​
JulsSmile [24]

Answer:

m-9

Step-by-step explanation:

12-9= 3

14-9= 5

18-9= 9

27-9= 18

4 0
3 years ago
Read 2 more answers
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