Can anybody help me with this?

Mathematics

1 answer:

AnnZ [28]4 years ago

4 0

Answer:

it will take 8 weeks for the bacteria to reach 16,000

Step-by-step explanation:

week 1: 125

week 2: 250

week 3: 500

week 4: 1000

week 5: 2000

week 6: 4000

week 7: 8000

week 8: 16000

hope this helps :)

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Tpy6a [65]

16^3 = 4096
2^12 = 4096

5 0

4 years ago

How to do this problem -9=x-14

deff fn [24]

Hello there!

To solve for this problem, you need to solve for x. To do that, you must isolate the variable (x) on one side of the equation.

We have the following equation:
-9 = x - 14

To isolate x, we need to get rid of -14.
So, to get rid of -14, we need to cancel it out by implementing a number of equal but opposite value. The opposite of -14 and is of equal value is 14.
Add 14 to both sides.

-9 + 14 = 5
-14 + 14 = 0

We are now left with the following solution:
x = 5

I hope this helps!

8 0

3 years ago

A bluebird is sitting in her nest 10 feet up in a tree when she looks down and sees a cat and a worm. she decides to use math to

GarryVolchara [31]

Answer:

12.2 feet

Step-by-step explanation:

The key to this problem is trigonometry.

Imagine a right triangle. With a height, 10 ft (representing the tree's height), and a base of 7 ft (representing the horizontal distance to the worm).

Now the hypoteneuse length, or otherwise the distance from the worm is unknown.

So this is where we can use the pythagorean theorem.

$a^2 + b^2 = c^2$

$c$ here is the hypoteneuse length, and $a$ and $b$ are the other lengths of the triangle.

Since we know a and b we can solve for c.

But first we will square root both sides of the equation to get $c$ and not $c^2$ .

$\sqrt{a^2 + b^2} = c$

Now just plug in our values for a and b respectively. (It doesn't matter what number replaces a or b, just make sure you are replacing a and b with the 2 known values) Calculate.

$\sqrt{10^2 + 7^2} = \sqrt{100 + 49} = \sqrt{149} = 12.206....$