PLEASE SOMEONE HELP AND EXPLAIN THE FIRST ONE PLEASE SO THE HALF LIFE OF A RADIOACTIVE KIND OF POTASSIUM IS 12 HRS . HOW MUCH WILL BE LEFT AFTER 36 HRS, IF YOU START WITH 64 GRAMS OF IT? SO I DID A=64(1/2)^36 POWER IS THAT THE ACCURATE FORM PLEASE I NEED HELP ASAPBTW THIS IS EXPONENTIAL DECAY

Answers

Answer 1

Answer: Don't get carried away with the exponent.

The exponent is not the number of years or the number of hours.
The exponent is the number of half-lifes.

In this one, the half-life is 12 hours, and they want to know
how much is left after 36 hours. 36 hours is 3 half-lifes.
The formula that you did is beautiful and almost perfect.
Just change that ugly exponent to the number of half-lifes (3)
and the answer will jump out at you.

Answer 2

Answer: half life formula is
F=P(1/2)^(t/h)

F=furure or ending amount
P=present amount
t=time elapsed
h=time the half life is

F=64(1/2)^(36/12)
F=64(1/2)^(3)
F=64(1/8)
F=8 grams

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Alice's aunt is 1.72 meters tall Alice's mother is 175 centimeters tall

Answers

Alice's mother because if you change both into meters Alice's aunt is 1.72 meters and Alice's mother is 1.75 meters. 1.75>1.72 So, Alice's mother is taller.

How many palimdromic numbers is there between 300 and 400

Answers

A palindrome is something that reads the same forwards and backwards.

If the number is a palindrome and it's between 300 and 400, then the
last digit must also be a ' 3 '.

So all we have left to fill in is the digit in the middle.

There are 10 possibilities for that one ... the digits ' 0 ' through ' 9 '.

So there are 10 palindromic numbers between 300 and 400.

Palindromic is where if you flip the number around (123 would become 321) then it is the same so:
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so there are 10

Whole numbers greater than 25 but less than 33

Answers

So 26 27 28 29 30 31 32 right I think that's what your asking because whole numbers have no decimals

Well, the question simply means that you should give all the numbers between 25 and 33. And those are;
26, 27, 28, 29, 30, 31, 32
Hope i helped. Have a nice day.

Which of the following is equivalent to the expression

Answers

Answer:

i Choice A

Step-by-step explanation:

i ^ 41

we use the rule of 4 for powers of i

if you get remainder of 0 = 1

if you get remainder of 1 = i

if you get remainder of 2= -1

if you get remainder of 1 = -i

41/4 = 10 remainder 1

so i^41 = i

The table below shows the amount of rainfall in maryville during each week in April. What was the total amount of rainfall in the amount of April?

Answers

What table i need to see the table pls

Theres no table bru.hhhhhh

Write an equation to represent the following relationship among integers: The sum of three consecutive even integers is 30 more than the smallest integer

Answers

Hello,

Let's 2k-2,2k,2k+2 the 3 even integers

2k-2+(2k)+(2k+2)=30+2k-2
==>4k=28
==>k=7
The 3 integers ared 2*7-2=12, 2*7=14,2*7+2=16
12+14+16=42=30+12

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