<u>Answer:</u>
t = 6.3 days
<u>Step-by-step explanation:</u>
The amount of initial mass is irrelevant when finding the half-life since the remaining mass is always 1/2 of the initial mass.
Taking on both the sides to get:
t = 6.3 days
Answer:
198 pages have no mistakes.
Step-by-step explanation:
We are given the following in the question:
The number of mistakes on a page follows a poison distribution with
Formula:
We have to find the probability that there are no mistakes on a page.
Thus, approximately 99.01% of the pages have no mistakes.
Number of pages =
Thus, 198 pages have no mistakes.
Answer:
y should be 90 degrees not sure about x
<span>The basic arithmetic operations are addition, subtraction, multiplication and division, the subject also includes more advanced operations, such as manipulations of percentages, square roots, exponentiation, and logarithmic functions.</span>
Answer:
Step-by-step explanation:
a) Here we have:
"In Family A, the youngest child is 7 years younger than the oldest, who is 18"
Let's define:
Y = age of the youngest child.
O = age of the oldest child.
Then we know that:
Y = O - 7
O = 18
Then we can replace the second equation into the first one:
Y = 18 - 7 = 11.
b) Here we have:
"In Family B, the middle child is 5 years older than the youngest child."
Let's define:
Y = age of the youngest child.
M = age of the middle child.
Here we have only one equation:
M = Y + 5.