Answer:
Figure 0 = 5 tiles
Figure 1 = 5 + 7 = 12 tiles
So, the equation is:
y = 7x + 5
because, it adds 7 tiles in every new figure.
<em>The</em><em> </em><em>equation</em><em> </em><em>is</em><em> </em><em>y</em><em> </em><em>=</em><em> </em><em>7x</em><em> </em><em>+</em><em>5</em><em>.</em>
<em><u>Answer</u></em><em><u> </u></em><em><u>is</u></em><em><u> </u></em><em><u>y</u></em><em><u> </u></em><em><u>=</u></em><em><u> </u></em><em><u>7x</u></em><em><u> </u></em><em><u>+</u></em><em><u>5</u></em>
Answer:
To write the following expressions as a multiple of a power of 10 you need to take each of the numbers and raise them to the power of 10.
An easy way to do this is to find the decimal point and move it over one spot to the right.
a. 0.04- move the decimal one to the right and you get that 0.04^10=00.4.
b. 0.072-move the decimal to the right one spot you get 0.072^10=00.72.
c. 0.0000325-move your decical to get 0.0000325^10=00.000325.
d. 0.003-move the decimal to get 0.003^10=00.03 or three hundredths.
e. 0.23-move your decimal to get 0.23^10=2.3 or two and three tenths.
f. 0.729-move you decimal to the right to get 0.729^10=07.29 or seven and twenty-nine hundredths.
g. 0.000041- move your decimal to the right to get 0.000041^10=00.00041 or forty-one hundred thousandths.
Hope this helps ;)
Given:
Initial number of bacteria = 3000
With a growth constant (k) of 2.8 per hour.
To find:
The number of hours it will take to be 15,000 bacteria.
Solution:
Let P(t) be the number of bacteria after t number of hours.
The exponential growth model (continuously) is:

Where,
is the initial value, k is the growth constant and t is the number of years.
Putting
in the above formula, we get



Taking ln on both sides, we get

![[\because \ln e^x=x]](https://tex.z-dn.net/?f=%5B%5Cbecause%20%5Cln%20e%5Ex%3Dx%5D)



Therefore, the number of bacteria will be 15,000 after 0.575 hours.
Hold your arms out side to side. thats undefined so it's not A. its B