Answer:
Step-by-step explanation:
2½ hours × 640 miles/hour = 2½×640 miles = 1,600 miles
Answer : 4th option
A equation is given to us and we need to find out its graph from the options . The given equation is ,
→ y = -2x + 1
Comparing this equation to the slope intercept form of the line which is y = mx + c , where m is the slope and c is y intercept. We have ,
So the equation of the line will cut y axis at (0,1) and will have a negative slope .
- Since the slope is negative , it will make an obtuse angle in anti clockwise direction with the x axis .
And the graph which satisfies the above conditions is in 4th option .
<u>Hence</u><u> the</u><u> </u><u>correct</u><u> answer</u><u> is</u><u> </u><u>4</u><u>t</u><u>h</u><u> </u><u>option</u><u> </u><u>.</u>
<em>I </em><em>hope</em><em> this</em><em> helps</em><em>. </em>
Answer: No, the normal curve cannot be used.
Step-by-step explanation:
The theorem of the Normal approximation states that if X is B(n,p) then for large n X is N(np, np(1-p)).
The accuracy of this approximation is good
i. for n > [10/p(1-p)]
ii. p is close to 1/2
Hence given p= 4% = 0.04,
q = 1 - 0.04 = 0.96
Let N = [10/p(1-p)]
We find N = 10/p(1-p) = 10/(0.04× 0.96)
N ~= 260
Since n < 260 and p < 0.5
The approximation is not a good one
Total people=180
discount received people=25%+10%=35%
People who did not receive discount=100-35%=65%
65%of 180=65×180/100=117
So 117 people did not receive discount