Answer:
0 is the probability that Tim will select a card labeled with a number 6.
Step-by-step explanation:
We are given the following in the question:
Number of cards = 4
Cards with labels:
1,3,5,7
Tim will select one card from the box. We have to find the probability that Tim will select a card labeled with a number 6.
Formula:
0 is the probability that Tim will select a card labeled with a number 6. Thus, it is an impossible event.
Answer:
tons of high steel and
tons of low steel
Step-by-step explanation:
Let x be the number of tons of high grade steel and y be the number of tons ow low grade steel needed.
In x tons of high grade steel there are
tons of iron
tons of magnese
In y tons of low grade steel there are
tons of iron
tons of magnese
NASA orders 500 tons of steel, so
and specifies that it must be in the proportion 80% iron and 20% magnese, so
From the first equation,
Substitute it into the second equation:
Option B: is the correct answer.
Explanation:
The exponential equation is
If , then
Thus, the equation becomes
Applying log rule, and thus the equation becomes
Since, we know that, , using this we get,
Hence, the logarithmic equation which is equivalent to the exponential equation is
Thus, Option B is the correct answer.