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Oliga [24]
3 years ago
6

A bacteria culture starts with 100 bacteria and doubles in size every half hour. (a) how many bacteria are there after 4 hours?

Mathematics
1 answer:
Savatey [412]3 years ago
5 0
19200 all you have to do to figure this out is multiply 100 times 8 since the is 8 halfs in 4 hours.
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48 is half of what number the number is half of 192?
Gala2k [10]

Answer:

96

Step-by-step explanation:

Is means equals, of means multiply

48 = 1/2 N

N = 1/2 * 192 = 96

The number is 96

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3 years ago
Passing through (2, - 2) and perpendicular to the line whose equation is y= 5x+2
jonny [76]

Step-by-step explanation:

Hey there!!!

Here,

Given, A line passes through point (2,-2) and is perpendicular to the y= 5x+2.

The equation of a straight line passing through point is,

(y - y1) = m1(x - x1)

Now, put all values.

(y  + 2) = m1(x - 2)

It is the 1st equation.

Another equation is;

y = 5x +2........(2nd equation).

Now, Comparing it with y = mx + c, we get;

m2=5

As per the condition of perpendicular lines,

m1×m2= -1

m1 × 5 = -1

Therefore, m2= -1/5.

Keeping the value of m1 in 1st equation.

(y + 2) =  \frac{ - 1}{5} (x - 2)

Simplify them.

5(y + 2) =  - x + 2

5y + 10 =  - x + 2

x + 5y + 8 = 0

Therefore the required equation is x+5y+8= 0.

<em><u>Hope it helps</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em>

7 0
3 years ago
√-90=ai√b what is the value of a and b?
OlgaM077 [116]

Answer:

what is this topic in math?

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3 years ago
Find the volume of a cylinder with a diameter of 8 inches and a height that is three times radius
ollegr [7]

Answer:

96π^2 = 947.48

Step-by-step explanation:

π × r² × h

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6 0
3 years ago
Read 2 more answers
A grocery store sells and 8 ounce bottle of juice for $1.76 What is the cost of the juice per ounce?
Marat540 [252]

Answer:

$0.22

Step-by-step explanation:

Now we know that 8 ounces total to $1.76. That means that in order to find how much 1 ounce costs, we will end up dividing both sides by 8

8 oz = $1.76

8 oz / 8 = $1.76 / 8

1 oz = $0.22

So, we now know that 1 oz  is equal to 22 cents. You can also confirm your answer by multiple 0.22 by 8, and you'll see that you'll get 1.76

6 0
3 years ago
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