Answer:
I think it's angle 10
Step-by-step explanation:
I'm not 100% sure, but I think this is it because angles 10 and 2 have the same relative position at the intersection.
I hope this helps
Answer:
20
Step-by-step explanation:
Answer:
Blank 1: y=3x+10
Blank 2: y= 40
Step-by-step explanation:
Let the cost of gift wrap be y and the number of gifts be x.
<u>Department</u>
An upfront fee of $10 means that Mr Bentley needs to pay $10 first, and this $10 is only paid once on top of the cost of wrapping each gift.
y= 3x +10
<u>Niece</u>
A flat fee of $40 means that no matter how many gifts the niece wraps, Mr Bentley only pays $40.
y= 40
To find out when the two plans cost the same, equate the two equations together. Then, solve for x.
3x +10= 40
3x= 40 -10 <em>(</em><em>-10</em><em> </em><em>on</em><em> </em><em>both</em><em> </em><em>sides</em><em>)</em>
3x= 30
x= 30 ÷3
x= 10
Thus when Mr Bentley has 10 gifts to be wrapped, the 2 plans costs the same.
Sample size = 65
mean = 180
variance = 135
Standard Deviation is square root of the variance. So standard deviation = 11.6
Standard Error of the mean = Standard Deviation / square root of sample size
= 11.6 / 8.06 = 1.44