Answer: (-2,1)
Step-by-step explanation:
When reflecting over the x-axis, you keep the x-axis and invert the y-axis.
Answer:
B
square root both sides 7*5=35..
Answer:
![\sqrt{144}](https://tex.z-dn.net/?f=%5Csqrt%7B144%7D)
Step-by-step explanation:
= ![x^{2} + 9^{2}](https://tex.z-dn.net/?f=x%5E%7B2%7D%20%2B%209%5E%7B2%7D)
![x^{2} = 15^{2} - 9^{2} \\x^{2} = 144\\x = \sqrt{144}](https://tex.z-dn.net/?f=x%5E%7B2%7D%20%3D%2015%5E%7B2%7D%20%20-%209%5E%7B2%7D%20%5C%5Cx%5E%7B2%7D%20%3D%20144%5C%5Cx%20%3D%20%5Csqrt%7B144%7D)
To determine the extent of how many times greater is the number of bacteria in petri dish A than petri dish B, we simply have to take the ratio of the two.
1.75 x 10^18 / 6.25 x 10^15 = 280
So the bacteria in petri dish A is 280 times larger.
In scientific notation:
2.8 x 10^2
Hope this helps :)