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cluponka [151]
2 years ago
5

What's 9+10=?What's 9+10=?What's 9+10=?What's 9+10=?​

Mathematics
2 answers:
dangina [55]2 years ago
7 0

Answer:

19

Step-by-step explanation:

Its 19

9+10 is 19

Yeah

im just putting random words so it'll let me post this

pentagon [3]2 years ago
4 0

Answer:

21

Step-by-step explanation:

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What is 6+0<br> plzzzz help
Feliz [49]

6+0=6

When you add any number to 0, that number stays the same since you aren’t adding anything to it. So the answer is 6.

6 0
3 years ago
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Divide 645 by 3 to get your answer
likoan [24]

Answer:

645/3 = 215

Step-by-step explanation:

You can use long division to find the answer.

6 0
3 years ago
You have just isolated a new radioactive element. If you can determine its half-life, you will win the Nobel Prize in physics. Y
Troyanec [42]
Staals half
1 gram left
0.3 grams left
half lives are normally written in years
it goes likt this

A=P( \frac{1}{2})^ \frac{t}{h}
A=final amount
P=initila amount
t=time elapsed
h=time half life is (same units as time)

let's use days as the units of time


we are given
initial amount=1gram
final amount=0.3gram
time=4 days

so
0.3=1( \frac{1}{2})^ \frac{4}{h}
solve for h
0.3=( \frac{1}{2})^ \frac{4}{h}
take the ln of both sides
ln(0.3)=ln( \frac{1}{2})^ \frac{4}{h}
ln(0.3)=\frac{4}{h}ln( \frac{1}{2})
times both sides by h
hln(0.3)=4ln( \frac{1}{2})
divide both sides by ln(0.3)
h= \frac{4ln( \frac{1}{2}) }{ln(0.3)}
use calculator
h=2.30287
3 sig figs
h=2.303 days
6 0
3 years ago
5h+3 - j; use h = 6, and j = 1
olga55 [171]

Answer:

32

Step-by-step explanation:

lets substitute the appropriate values in the equation:

5h+3 - j    h= 6    j=1 , so we have:

5*6 +3 -1

30 +3 -1

32

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2 years ago
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