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Troyanec [42]
2 years ago
11

In a lab experiment, 60 bacteria are placed in a petri dish. The conditions are such that the number of bacteria is able to doub

le every 21 hours. How long would it be, to the nearest tenth of an hour, until there are 107 bacteria present?
Mathematics
1 answer:
Levart [38]2 years ago
7 0

Answer:

17.5 hours

Step-by-step explanation:

107 = 60(2^n)

n(lg2) = lg(107/60)

n = 0.8345763908 × 21

n = 17.52610421 hours

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What is the ratio 44/12 in simplest form
mylen [45]

Answer:

11/3

<em>Alternative Form: </em>3 2/3, 3.6

Step-by-step explanation:

44/12

Dive the numerator and denominator by 4

44/4 / 12/4

11/ 12/4

11/3

3 0
3 years ago
Read 2 more answers
Mike measured the stage where his band was going to play to determine if it is a right triangle. Does the stage with side length
katrin [286]

Answer:

let

hypotenuse[h]=60ft

base[b]=36ft

perpendicular [p]=48ft

by using Pythagoras law

p²+b²=h²

48²+36²=60²

2896≠3600

since p²+b²≠ h²[<u>so</u><u> </u><u>the</u><u> </u><u>stage</u><u> </u><u>is</u><u> </u><u>not</u><u> </u><u>in</u><u> </u><u>a</u><u> </u><u>right</u><u> </u><u>angled</u><u> </u><u>tria</u><u>ngle</u><u>]</u><u>but</u><u> </u><u>it</u><u> </u><u>is</u><u> </u><u>scalene</u><u> </u><u>triangle</u>

7 0
2 years ago
Solve each inequality
forsale [732]

Answer:

  1. x > -2
  2. n ≤ -2 or n ≥ 8

Step-by-step explanation:

<h3>1.</h3>

Add 7x-2 to both sides and collect terms.

  2x +2 -6x +7x -2 > -4 -7x +7x -2

  3x > -6

  x > -2 . . . . . . . divide by 3

__

<h3>2.</h3>

Solve these one at a time, and form the union of the answers.

  1 +7n ≤ 15 . . . .given

  7n ≤ 14 . . . . . . subtract 1

  n ≤ 2 . . . . . . . divide by 7

__

  -2n -2 ≤ -18 . . . given

  -2n ≤ -16 . . . . . add 2

  n ≥ 8 . . . . . . . . divide by -2

The solution is n ≤ -2 or n ≥ 8.

4 0
2 years ago
PLZ HELP ASAP I don’t know the answer and I keep getting it wrong
Nuetrik [128]
I believe the Slope- intercept formula is y = mx + b

Slope is your m = -4
Point: (2, -4)
x = 2
b is your y-intercept = -4

Answer: y = -4(2)+ -4 or -4(2)-4?

So sorry if it’s wrong but I hope this helps
4 0
3 years ago
Please answer i need to submit soon
Aleksandr-060686 [28]

Answer:

15 rides because I had gotten this correct on my test

6 0
2 years ago
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