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riadik2000 [5.3K]
3 years ago
11

A bacteria culture is grown with a population of 45 million cells and kept under observation the cell population is found to dou

ble every hour what will the population be after four hour
Mathematics
1 answer:
frosja888 [35]3 years ago
4 0
The answer is 360 million or 720 million cells after 4 hours of doubling.
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An angle measures 72 degrees more than the measure of its complementary angle what is the measure of each angle
labwork [276]

Good evening

Answer:

<h2>measure of Angle 1 = 81°</h2><h2>Measure of angle 2 = 9°</h2>

Step-by-step explanation:

we need to solve this system

x + y = 90 (1)

x = y + 72 (2)

If we substitute x by y+72 into the equation (1) we will get

(y+72) + y = 90 ⇔ 2y + 72 = 90 ⇔ 2y = 90 - 72 = 18 ⇔ y = 9

then x = 90 - 9 = 81

:)

8 0
4 years ago
HELP ME ASAP! Will give BRAINLIEST! Please read the question THEN answer correctly! No guessing. Check ALL that apply
Lostsunrise [7]

Answer:

  A, B

Step-by-step explanation:

After being simplified and put in standard form, the equations are ...

  A. 3x² +8x -13 = 0 . . . a quadratic

  B. 3x² -x -30 = 0 . . . . a quadratic

  C. 4x = -16 . . . . . . . . . a linear equation, not quadratic

  D. 3x⁴ -5x -6 = 0 . . . . a quartic equation, not quadratic

Both of the quadratic equations can be solved using the quadratic formula.

3 0
3 years ago
Which expression is equivalent to 3(5x-4)
erastovalidia [21]

Answer:

15x - 12

Step-by-step explanation:

3(5x - 4)

15x - 12 using the distributive property

BRAINLIEST IS APPRECIATED

4 0
3 years ago
Read 2 more answers
What goes in photosynthesis and what comes out of photosynthesis?​
lorasvet [3.4K]

Answer:

  • photosynthesis is the process by which plants make their own food with the help of sunlight , water and chlorophyll
  • This transforms the water into oxygen and the carbon dioxide into glucose
5 0
3 years ago
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The director of marketing at a large company wants to determine if the amount of money spent on internet marketing is a good pre
vova2212 [387]
Given:
Profit = 17,500
advertising dollar = 1,020

regression line:

Profit = 372.60 + 17.2(advertising dollar)
17,500 = 372.60 + 17.2(1020)
17,500 = 372.60 + 17,544
17,500 = 17,916.60

There is a residual value of 416.60. 

17,916.60 - 17,500 = 416.60
8 0
3 years ago
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