Answer:
36
Step-by-step explanation:
Here we a given a rule
It say
÷
And we are given the values of x and y as
x=4 and y = 9
Let us replace them in the rule we are provided with
÷
Applying DMAS rule, which says, first Division ollowed by Multiplication addition and then subtraction .
We first divide 9 by 3
9÷3 = 3
Hence
÷
Now we square first
Hence our final answer will be 36
#1. The answer is B, just put the points on the graphic and you will see.
#2. The answer is A, the equation explained everything.
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
I think answer is y=7/8x-5/2
