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Gennadij [26K]
3 years ago
9

The function f(x) = 30(1.4)x gives the number of bacteria in a science experiment, where x is the number of days after the start

of the experiment. To the nearest whole number, how many bacteria will there be after 4 days?
Mathematics
1 answer:
Rainbow [258]3 years ago
6 0

Answer:

115 bacteria

Step-by-step explanation:

The function that gives the number of bacteria in a science experiment is:

f(x) = 30(1.4)^x

Where x is the number of days

After 4 days (x = 4), the number of bacteria will be:

f(4) = 30 * (1.4)^4

f(4) = 39 * 3.8416

f(4) = 115.248 = 115 (To the nearest whole number)

The number of bacteria after 4 days is 115.

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faltersainse [42]
The perimeter of these can be found by adding length and width and then multiplying by two. 

Rectangle A: (with all of the variables already doubled)
2x + 16 + 2x - 2 
2x + 2x + 16 - 2
4x + 14
So rectangle A's perimeter is 4x + 14.

Rectangle B: (Still with all the variables already doubled)
8x + 10 + 6x - 4
8x + 6x + 10 - 4
14x + 6
So rectangle B's perimeter is 14x + 6

And now to subtract the two.
(7x + 3) - (4x + 14)
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5 0
3 years ago
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Alexandra [31]

your answer would be A. I would hope this is right

6 0
3 years ago
Nick bought 2.5 pounds of popcorn for $8.35 how much did he pay for each pound of popcorn
marta [7]

Answer:

$3.34 for each pound of popcorn

Step-by-step explanation:

All we must do, in this case, is divide 8.35 by 2.5.

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Therefore, each pound of popcorn cost $3.34.

Don't believe me? To check, just multiply 3.34 by 2.5.

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5 0
3 years ago
An angle measures 64° more than the measure of a complementary angle. What is the measure of each angle?
GarryVolchara [31]
Complementary angles are 90 degrees,so if the angle is 64 degrees more,you just only have to add 90+64=154.

The measure of the angle is 154 degrees

Hope i helped.

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6 0
3 years ago
Pls help ( if you can’t read it it says, a toddler weighs 30.0 pounds. If 1.00 Newton equals the weight of 0.228 pounds, what is
gizmo_the_mogwai [7]

Answer:

131.6 Newtons

Step-by-step explanation:

30 ÷ 0.228 =131.6 Newtons

5 0
3 years ago
Read 2 more answers
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