Here is the square root spiral
Answer:
x = -33
Step-by-step explanation:
To find the midpoint add the two points and divide by 2
(x+27)/2 = -3
Multiply each side by 2
(x+27)/2 *2= -3*2
x+27 = -6
Subtract 27 from each side
x+27-27 = -6 -27
x = -33
So the fisrt thing we need to calculate is that 9 times out of 10 is 90% which will be the confidence interval.
<span>Margin of error is 6% = .06 </span>
<span>Confidence interval is 80 +/- .06 = .74 to .86. or 74% to 86$ </span>
<span>In 9 times out of 10 the confidence interval for similar samples of seniors will contain the </span><span>true mean of the population of senior scores. </span>
Answer: 60 degrees
Step-by-step explanation: triangles are come to 180 if you add all angles correctly. therefore if you do 180-90-30, you'll get 60.
it's C because the floor area is 120 square feet and the walls are 8 feet so if you multiply 120 × 8 you get 960.
