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sertanlavr [38]
2 years ago
6

Harriet is cultivating a strain of bacteria in a petri dish. Currently, she has 103 bacteria in the dish. The bacteria divide ev

ery two hours such that the number of bacteria has doubled by the end of every second hour. How many bacteria will Harriet have in the dish at the end of 6 hours?
A.
1024
B.
103 6
C.
203
D.
103 8
Mathematics
1 answer:
kodGreya [7K]2 years ago
7 0
C. 203 is the answer
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Please help soon!!! I can’t figure this out! ;-; I just need this answer :(
kodGreya [7K]
10^2 + 4 * (6 + 3) - 27 ÷ (9 - 6) = 127

=100 + 4 * 9 - 27 ÷ 3
multiplication & division before addition and subtraction (order of operations rules, PEMDAS)

100 + 36 - 9= 127
136 - 9= 127
127= 127

Place a set of parentheses around (6+3) and (9-6).

Hope this helps! :)
4 0
3 years ago
A cyclist rides his bike at a rate of 21 miles per hour. What is this rate in miles per minute? How many miles will the cyclist
Citrus2011 [14]
5 days ago, hope this still helps though! 

Alright 21 miles per hour. We know that there are 60 minutes in an hour. So this is basically saying 21 miles per 60 minutes. To find the rate for miles per minute, you divide 21 by 60 which is 0.35. 

In one minute the cyclist rides 0.35 miles
In two minutes the cyclist rides 0.7 miles
5 0
3 years ago
Solve the following proportion x/2 = 8/9
artcher [175]

Answer:

\frac{x}{2}  =  \frac{8}{9}  \\ 9x = 16 \\ x =  \frac{16}{9}  \\ x = 1.78

C

5 0
3 years ago
Read 2 more answers
Plzzz help<br> What is the distance between P(-3, -2) and Q(5, -2)?
Yuri [45]
Well first, you have to know the distance formula. You plug the coordinates into it and you get the answer.

\sqrt(-2 + 3) ^{2} + (-2 - 5) ^{2}

√1² + -7² = d

d = 7.1
6 0
4 years ago
Which functions could represent a reflection over the y axis of the given function
fredd [130]

Answer:

g(x) = 1/2*(4)^(–x)          and

g(x) =1/2*(1/4)^(x)

Please, see attached picture.

Step-by-step explanation:

Your full question is attached in the picture below

To easily solve this problem, we can graph each equation and see, which one represents a reflection of the function over the y axis.

See, second image.

The answers are

g(x) = 1/2*(4)^(–x)          and

g(x) =1/2*(1/4)^(x)

4 0
3 years ago
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