The first answer is correct as the dot is on -34.5 and the bar is shaded to its left, therefore, x is less than -34.5
Hope this helped :)
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Answer:
1.05
Step-by-step explanation:
Following instructions, we have ...
Z = (X -μ)/σ
Z = (180 -159)/20 = 21/20
Z = 1.05
The Z-score associated with the value 3 minutes is 1.05.
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<em>Additional comment</em>
About 14.7% of customers will be getting free coffee.
Answer:
480 feet.
Step-by-step explanation:
We are told that the function
models Jason's height above ocean measured in feet as a function of time and t is the time in seconds from jumping off.
To find the height of cliff we need to substitute t=0 in our given function as at t=0 we will get Jason's height above ocean which is same as the height of the cliff.
Upon substituting t=0 in our function we will get,



Since, the function gives Jason's height above ocean in feet, therefore, the cliff was 480 feet high.
{ y=2x+2
{ y=4x-2
2x+2=4x-2
x=2
y=2 ⋅ 2+2
y=6
(x,y)=(2,6)
——
Check solution:
{ 6=2 ⋅ 2+2
{ 6=4 ⋅ 2-2
{6=6
{6=6
E = mc^2......divide both sides by c^2
E / c^2 = m <===