1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
amm1812
3 years ago
10

Can someone help please!!!!

Mathematics
1 answer:
lara [203]3 years ago
8 0

Answer:

1000 * 3^{9} Bacteria after 18 hours,

Step-by-step explanation:

The condition given in the problem is that the number of bacterial triple after every 2 hours.

So, after 2 hours, total bacteria= 1000 * 3

So, after 4 hours, total bacteria= 1000 * 3 * 3

Therefore, the general format for the number of bacteria is 1000 * 3^{n}, where n is the number of times the bacteria has tripled.

In 18 hours, there are \frac{18}{2} ties that the bacteria has tripled.

Therefore, the no. of bacteria after 9 hours= 1000 * 3^{9}

You might be interested in
You buy a storage case that holds 170 collectible die-cast cars. You have 137 die-cast cars. Write an inequality that describes
Murljashka [212]

Answer:

137 + x <= 170

Step-by-step explanation:

The following inequality will describe this scenario.

137 + x <= 170

the variable x in this scenario represents the total number of cars that you will purchase. This number is added to the number of toy cars that you already own which is 137. As long as this sum is less than or equal to 170 then your storage case will hold them.

4 0
3 years ago
(-6, 1) and 3, 5)<br> M= rise/run=(y2-y1)/(x2-x1)
Sergeeva-Olga [200]

Answer:

4/9

Step-by-step explanation:

The slope of these points would be: (5-1)/(3+6) = 4/9

7 0
3 years ago
Find the perimeter of this figure to the nearest hundredth use 3.14 to approximate pi P=?ft
blagie [28]

Answer:

Step-by-step explanation:

perimeter of the figure = perimeter of the rectangle + perimeter of the semicircle

= 2(l+B) + \pi r

= 2( 10+8) + 3.14 × 5

= 36 + 15.7

= 51.7

= 100 ( rounding off to nearest hundredth )

hope this helps

plz mark it as brailiest!!!!!!

4 0
3 years ago
Read 2 more answers
Please need help on this
artcher [175]

Answer:

the center is (-4,7) and the radius is 3

Step-by-step explanation:

The center of a circle can be found using the equation (x-h)^2 + (y-k)^2 = r^2 and is (h,k) from it. Notice h and k are the opposite value as in the equation.  

First write the equation in this form.  

x^2 + 8x + ( ?)+ y^2 - 14y + (?) + 56 = 0  

Complete the square with each variable to find what numbers should go in place of the question marks.  

(8/2)^2 = 4^2 = 16  

(-14/2)^2 = -7^2 = 49  

Add 16 and 49 to both sides of the equation.  

x^2 + 8x + 16 + y^2 - 14y + 49 + 56 = 16 + 49\\(x+4)^2 + (y-7)^2 + 56 = 65\\(x+4)^2 + (y-7)^2 = 9  

So the center is (-4,7) and the radius is 3.

5 0
3 years ago
What is the 75th term of the sequence -200,-100,0
worty [1.4K]

Answer:

7200

Step-by-step explanation:

5 0
3 years ago
Other questions:
  • If the store purchases a product at a wholesale cost of $1.65, and it is sold at $2.20, what is the gross profit percentage? (fo
    5·1 answer
  • Olga says: If you subtract 8 from
    10·1 answer
  • Given sinx= −3/5 when 3π/2 &lt; x &lt; 2π, find tan x/2
    14·2 answers
  • N+5 - n-10=1 The n=5 and n-10 are in square root symbols
    11·1 answer
  • 13. Find the slope and write the equation of
    5·1 answer
  • Pedro, Alex, and Jaime are having a three-point contest. Each boy takes six turns and records the number of three-pointers he sh
    15·2 answers
  • Andrew went to the store with $200.00. He bought 2 pair of shorts for $25.00 each, he bought 3 shirts for $22.00 each, and he bo
    11·2 answers
  • 36 • (-9)<br> SHOW WORK PLEASE!!!
    15·1 answer
  • I need help with this one too!
    12·1 answer
  • Mr.Abney bought 6 kilograms of rice.He cooked 1 kilogram of it for dinner. what fraction of the rice did he cook for dinner? 3rd
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!