Answer:
The correct answer is the number in the note is 80 and the first digit is 8.
Step-by-step explanation:
Dr. Green finds a note from another scientist. It says how many boxes of bug nets they should bring, but there is a smudge over the first digit of the number.
Number of nets that they must bring is 320.
Each box contains 4 nets.
There number of boxes necessary to be brought is given by 
= 80.
Therefore the missing digit of number the number in the note is 8.
I’m not sure if this is correct but here is a picture of what I think the answer might be. P.S my handwriting is not neat
We have the equation of the line as follows:
y = 0.5x + 79
We want to calculate the melting point (the y value) of DNA with 50% gc content (the x value).
The gc content represents the value of x in the equation, so to calculate the melting point (y), we will simply substitute the x with 50 in the equation of the line as follows:
melting point = 0.5(50) + 79 = 25 + 79 = 104 degrees
Answer:
69 bpm
Step-by-step explanation:
Here we start out finding the z-score corresponding to the bottom 33% of the area under the standard normal curve. Using the invNorm( function on a basic TI-83 Plus calculator, I found that the z-score associated with the upper end of the bottom 33% is -0.43073.
Next we use the formula for z score to determine the x value representing this woman's heart rate:
x - mean x - 75 bpm
z = ----------------- = -0.43073 = --------------------
std. dev. 15
Thus, x - 75 = -0.43073(15) = -6.461, so x = 75 - 6.6461, or approx. 68.54, or (to the nearest integer), approx 69 bpm
Answer:
2002.77mm³
Step-by-step explanation:
Formula : pi × r²× height
pi × 5² × 25.5 = pi × 25 × 25.5 = 2002.765317mm³
