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TEA [102]
3 years ago
9

A scientist counts 25 bacteria present in a culture and finds that the number of bacteria tripled each hour. the function y=25•3

^x models the number of bacteria after x hours. estimate when there will be about 1170 bacteria in the culture.
A. about 3.5 hours
B. about 5.5 hours
C. about 2.5 hours
D. about 4.5 hours
Mathematics
2 answers:
LUCKY_DIMON [66]3 years ago
5 0

Answer: The answer is 3.5

Step-by-step explanation:

alekssr [168]3 years ago
3 0

Answer:

3.5

Step-by-step explanation:

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Hey can you please help me posted picture of question
Ira Lisetskai [31]
Answer:
40x² + 65x + 25

Explanation:
We will just multiply each term from the first bracket by each term from the second and then combine like terms to get the final expression.

This would be done as follows:
(5x + 5)(8x + 5)
5x(8x) + 5x(5) + 5(8x) + 5(5)
40x² + 25x + 40x + 25
40x² + 65x + 25

Hope this helps :)
6 0
3 years ago
Heights (in centimeters) and weights (in kilograms) of 7 supermodels are given below. Find the regression equation, letting the
Delvig [45]
The regression equation:
y = m x + b
m = ( 57 - 50 ) / ( 178 - 168 ) = 7 / 10 = 0.7
50 = 0.7 * 168 + b
50 = 117.6 + b
b = 50 - 117.6
b = - 67.6
y = 0.7 * x - 67.6
The graph is in the attachment.
The weight of supermodel who is 171 cm tall:
y = 0.7 * 171 - 67.6 = 119.7 - 67.6 = 52.1 kg
Download docx
6 0
3 years ago
What is the greatest common factor of the following terms?<br> 20x4y3, 26x5y3 and 12x2y3
Lena [83]

Answer:

2x²y³

<em>good luck, i hope this helps :)</em>

8 0
3 years ago
What is the probability that two different colored marbles are drawn, given that the first marble drawn is red?.
inessss [21]

Answer:

what are the color of the marbles that are not red?

Step-by-step explanation:

5 0
2 years ago
What is the factored form of the expression?Factor completely. 6x^4-9x^3-36x^2+54x
mario62 [17]
If we factorize the expression

6x^4-9x^3-36x^2+54x

We will get

3x(2x-3)(x^2-6)


Hope I helped!
8 0
3 years ago
Read 2 more answers
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