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Margarita [4]
4 years ago
9

8k−5(−5k+3) A 33k+15 B 33k-15 C 3k+3 D 3k-3

Mathematics
1 answer:
Ira Lisetskai [31]4 years ago
5 0
33k−<span>15..................</span>
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a culture started with 6000 bacteria after 6 hours it grew to 7200 bacteria predict how many bacteria will be present after 17 h
Zigmanuir [339]
First find the rate of growth using the formula of
A=p e^rt
A 7200
P 6000
E constant
R rate of growth?
T time 6 hours
We need to solve for r
R=[log (A/p)÷log (e)]÷t
R=(log(7,200÷6,000)÷log(e))÷6
R=0.03 rate of growth

Now predict how many bacteria will be present after 17 hours using the same formula
A=p e^rt
A ?
P 6000
R 0.03
E constant
T 17 hours
A=6,000×e^(0.03×17)
A=9,991.7 round your answer to get
A=9992
8 0
3 years ago
Read 2 more answers
Is 3x + 4 proportional? Explain.
Solnce55 [7]

Answer:

Since it is a linear function, it is a directly proportional function

Step-by-step explanation:

i looked it up

6 0
3 years ago
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Find the slope of the line that passes through the pair of points. (if an answer is undefined, enter undefined.) (−a + 2, b − 3)
inysia [295]
M=(y2-y1)/(x2-x1)
 (x1,y1)=<span>(−a + 2, b − 3)
</span> (x2,y2)=<span>(a + 2, −b) 
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 m=((-b)-(b − 3))/((a + 2)-(−a + 2))
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3 0
3 years ago
Can i get some help doing this plz
KATRIN_1 [288]

Answer:

The upper bound for the perimeter of the rectangle = 427.76 cm

Step-by-step explanation:

To obtain the upper bound for the perimeter, we need to first obtain the upper bound for the Length and Breadth of the rectangle.

Since, these dimensions were rounded to the nearest 1 decimal place, we can write down their ranges

Length = 127.3 cm

Width = 86.5 cm

Length can range from 127.25 cm to 127.34 cm

Breadth can range from 86.45 cm to 86.54 cm

The upper bound for the Length and Breadth of the rectangle are this 127.34 cm and 86.54 cm respectively.

Perimeter = 2 (L + B)

Upper bound of the perimeter

= 2 × (127.34 + 86.54)

= 2 × 213.88

= 427.76 cm

Hope this Helps!!!

5 0
3 years ago
Look at the hexagonal numbers. Use finite differences
pshichka [43]

Answer:

f(x) = 2x2 – x

Step-by-step explanation:

8 0
3 years ago
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