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Sholpan [36]
3 years ago
10

Please help, I don't understand this!

Mathematics
1 answer:
Lemur [1.5K]3 years ago
7 0

9514 1404 393

Answer:

  A: a = 100

  B: b = 2

Step-by-step explanation:

The problem statement tells you that the population of bacteria is 100 at the start of our observation.

  t = 0, f(t) = f(0) = 100

If you remember that a 0 exponent means the value is 1, then you know ...

  f(0) = a·b^0 = a·1 = a

Since f(0) = 100, we know a = 100.

__

An exponent signifies repeated multiplication.

We know the population at t=0 is 100. At t = 1, we are told the population doubles. That means it is multiplied by 2.

 f(1) = 100·b^1 = 100·2

  b^1 = 2 . . . . . . . . . . . . . . . matching parts of these expressions

  b = 2 . . . . . . . . . . . . . because b^1 = b

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What is the sum of all measures of the interior angles of a regular pentagon?
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There are 540 degrees total in the interior angles of a regular pentagon.

Just so you know, the total degrees of interior angles goes up by 180 degrees.

A triangle is 180 degrees, a quadrilateral 360, and a pentagon 540.
6 0
3 years ago
Which expressions are equivalent to 12r-5?
Gekata [30.6K]

Answer:

c

Step-by-step explanation:

because u cant be wrong with going with none of the above due the fact that they could be decimals and they didn't want to write out the full number therefore making it incorrect. No need to thank me.

7 0
3 years ago
There is a bag filled with 5 blue and 4 red marbles.
PtichkaEL [24]

Answer:

<h2>8/9</h2>

Step-by-step explanation:

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5 0
2 years ago
Which graph represents the function f(x) = 2 x – 1 + 2?
tatuchka [14]

Answer:

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Step-by-step explanation:

y=mx+b

f(x)=y

m = slope

b = y intercept

First you need to make it look like y=mx+b

y = 2x - 1 + 2

y = 2x + 1

Now we can say,

m = 2

b = 1

or,

Slope = \frac{2}{1}

y intercept = 1

Slope (m) = \frac{rise}{run}

So the numerator is the value your are going to go up or down along the graph and the denominator is the value of how far you are going to go left or right along the graph. If the slope is positive then the graph is inclining. If the slope is negative, the graph is declining.

5 0
3 years ago
The other side is 10 yds
Vesnalui [34]
The correct answer is 900yds.
6 0
3 years ago
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