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Kipish [7]
3 years ago
10

To begin a bacteria study, a petri dish had 3000 bacteria cells. Each hour since, the number of cells has increased by 12%.

Mathematics
1 answer:
Komok [63]3 years ago
7 0
Y = 3000(0.88)^t

Please don’t forget to mark brainliest if you like this answer
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What is the area of this figure?
Dima020 [189]

Answer:

220.5 \:  {yd}^{2}

Step-by-step explanation:

Area of the figure = Area of the arc with radius 10 yd and central angle 90° + Area of rectangle with dimensions (10 + 5 - 3 = 12) 12 yd and (7 + 6 - 4 = 9) 9 yd + Area of square with dimension 4yd + Area of rectangle with dimensions 3 yd by 2 yd + Area of triangle with base 3 yd and height (5 + 3 = 8) 8 yd.

=  \frac{90 \degree}{360 \degree}  \times 3.14 {(10)}^{2}  + 12 \times 9 +  {4}^{2} \\ + 3 \times 2 +  \frac{1}{2}  \times 3 \times 8 \\  \\  =  \frac{1}{4}  \times 314 + 108 + 16 + 6 + 12 \\  \\  = 78.5 + 142 \\  \\  = 220.5 \:  {yd}^{2}

4 0
3 years ago
Solve 9m – 4 = -3m + 5 + 12m
kotykmax [81]

Answer:

There are no solutions.

Step-by-step explanation:

Let's solve your equation step-by-step.

9m−4=−3m+5+12m

Step 1: Simplify both sides of the equation.

9m−4=−3m+5+12m

9m+−4=−3m+5+12m

9m−4=(−3m+12m)+(5)(Combine Like Terms)

9m−4=9m+5

9m−4=9m+5

Step 2: Subtract 9m from both sides.

9m−4−9m=9m+5−9m

−4=5

Step 3: Add 4 to both sides.

−4+4=5+4

0=9

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564 in scientific notation
MAXImum [283]

Answer:  5.64 *10^2

Step-by-step explanation:

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3 years ago
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