Answer:
No. of Bacteria in a petri dish= 10
No. of hours= 14
Total no. of Bacteria= 10x14= 140
Answer _140______
Step-by-step explanation:
How this was helpful
if the brainliest option is there can you mark me
The probability that a student is in seventh grade, given that he/she is dropped off by parents is <u>option C)</u> 0.22
<u>Step-by-step explanation</u>:
- The total probability of students in 7th grade = 0.56
- The probability of 7th grade students dropped by parents = 0.12
P(student is in 7th grade student is in seventh grade) = P(students in 7th grade) / P(7th grade students dropped by parents).
⇒ 0.12/0.56
⇒ 0.22
First we have to see the name of similar triangles. And here triangles, CBA and FED are similar . Now we need to use the property of similar triangle, which is
Corresponding sides of similar triangles are in same proportion. Therefore in triangle FED, 12 is the measurement of side opposite to angle with measurement 28 . So in triangle CBA, side opposite to angle of measurement 28 is of length 8 .
So the ratio is
Ok so in order to do these, you need to make the bases the same. Since 3^2 is 9, you can make that side of the equation look like 3^2(x+5). Now, you have 3^x=3^2(x+5). Since the bases are the same, you can drop those. Your equation will now look like x=2(x+5). All that is left to do now is solve. x=2x+10 -> -10=x
