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ehidna [41]
3 years ago
5

In a lab experiment, 2200 bacteria are placed in a petri dish. The conditions are such that the number of bacteria is able to do

uble every 6 hours. How many bacteria would there be after 13 hours, to the nearest whole number?
Mathematics
1 answer:
ratelena [41]3 years ago
6 0
The answer would be 5866 because after it multiplied twice it would be at 8800 at that rate it would be gaining 1466.66 an hour so add that to 4400 and u get 5866
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2 years ago
What is the midpoint of RS with endpoints R (-8, 3) and S (9, – 7)?
lubasha [3.4K]

Answer:

Midpoint coordinates are (x,y) = (\frac{1}{2} , -2)

Step-by-step explanation:

The Coordinates of R = (-8,3)

The Coordinates of S = (9, -7)

Let M be the mid point of M and its coordinates by (x,y)

Now, by mid point formula,

(x,y) = (\frac{x_1  + x_2}{2} ,\frac{y_1 + y_2}{2} )

⇒(x,y) = (\frac{1}{2} ,\frac{-4}{2} ) = (\frac{1}{2} , -2)

So, the midpoint coordinates are (x,y) = (\frac{1}{2} , -2)

8 0
3 years ago
Which of the following points is a solution of the inequality y < -|x|?
ch4aika [34]

Answer:

(1, -2)

Step-by-step explanation:

1 < -|-2|

1 < |2|

because its absolute x can be -2 or +2. Both are greater than 1 so absolute 2 gets eaten.

8 0
3 years ago
marias penny bank is 1/2 full. after she removes 120 pennies, it is 1/3 full. how many pennies can marias bank hold​
liberstina [14]

Answer:

720 pennies

Step-by-step explanation:

Initially the Penny bank is 1/2 full

After removing 120 pennies it is 1/3 full;

Therefore. the fraction equivalent to 120 pennies is;

1/2 -1/3 = 1/6

Thus; Assuming the number of pennies that the penny bank can hold when full is x; then;

1/6 of x = 120

x = 120 × 6

   = 720 pennies

Hence, when the penny bank is full it can hold 720 pennies.

8 0
3 years ago
Read 2 more answers
WILL MARK BRAINLIEST! Solve for x and y in the figure below. Thank you!
il63 [147K]

Answer:

x=64

y=40

Step-by-step explanation:

2x+x-12=180

3x=192

x=64

3y+y+20=180

4y=160

y=40

7 0
3 years ago
Read 2 more answers
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