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horrorfan [7]
3 years ago
10

An antibiotic kill 60% of bacteria in a sample of 100,000 each day. The Equation p1

Mathematics
2 answers:
Lisa [10]3 years ago
7 0

Answer:

The correct option is the last

Step-by-step explanation:

To answer this question we must remember the exponents properties  

It is known that when we have division of exponents of equal base, then we place the same base and subtract the exponents.

In this problem we do the opposite, that is, we have an expression in the form of exponents and we write it as the division of exponents of the same base.

p_2 = 100000(0.4) ^ {d-4}

Then p2 can be written as:

p_2 = \frac{100000 (0.4) ^ d}{(0.4) ^ 4}\\\\p_2 = \frac{100000 (0.4) ^ d}{0.0256}\\\\p_2 = 3906250 (0.4) ^ d\\

Therefore the correct option is the last

icang [17]3 years ago
5 0

Answer:

D

Step-by-step explanation:

The answere is d

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each day ashley practices free throws. the first day she takes 12 shots and every day after she takes 2 more than the previous d
morpeh [17]
I added 12+5(2) and got 22. Since 12 was how many shots she made on the first day and she makes 2 more shots than the previous day I did 5x2 which is 10 and add them up it makes 22:)
8 0
3 years ago
Josh has been running for 6 min and completes a lap in 7 min. Gabe has been running for 2 min and completes a lap in 9 min.
Amanda [17]
So j completed 6/7 of a lap
gabe has completed 2/9 lap
so
1 j lap=7 mins s o
7j
j=num of laps
1 g lap=9 mins so
9g
g=num of laps
then 6+j
and g+2

so
when will the times be equal
7j+6=9g+2
subtract 2 from both sides
7j+4=9g
divide both sides by 9
7/9j+4/9=g
so to get a whole number of laps, we must subsitute a number when it is multiplied by 7 then add 4, we get a multiplue of 9
so if j=2
7/9(2)+4/9=g=14/9+4/9=g=18/9=g=2
so josh and gabe must run 2 lap each because
6+(2 times 7)=2+(9 times 2)
6+14=2+18
20=20
true so

the answer is 2 laps
3 0
3 years ago
Read 2 more answers
Round 3.468 to tenth
timama [110]

Answer: 3.5


Step-by-step explanation:


5 0
3 years ago
Read 2 more answers
Please help me ASAP
Liula [17]
I would say answer choice 1. It’s the only one that makes sense.

I hope this helps! Let me know if you have any questions! Good luck on the rest of your assessment!

Mark this as Brainliest if you get a chance:)
6 0
2 years ago
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The area of the rectangular floor in Tamara's room is 95 5/6 square
White raven [17]
Area of rectangle is width × length
which means area of rectangular floor in Tamara's room = width of room × length of room
-> 95 ⅚ sq feet = 8 ⅓ feet × length of
->(95 + 5/6) sq feet = (8 + 1/3) feet × length of room
->575/6 sq feet = 25/3 feet × length of room
length of room = (575/6)/(25/3)
= 575 × 3/6 × 25)
= 23/2
= 11 ½ feet
8 0
3 years ago
Read 2 more answers
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