Answer:
x=70* y=63*
Step-by-step explanation:
x=70* y=63* because these are alternate exterior angles , and because of that the angles are congruent. The angle y is congruent with the 63* angle and the angle x is congruent with the 70* angle.
I hope this helps you.
Well, the first 16 were about 16*75=$1200 extra. The last 8 were $720 lost. Thus, the total profit is $480. He bought them with $7200, which means the profit is around 6.67%.
Answer:
23
Step-by-step explanation:
Insert 3 for "x"
f(3)=23
Answer:
4,151,347,200
Step-by-step explanation:
i just did it
The 90% confidence interval is given by mean - 1.645(s.d. / sqrt(n)) < μ < mean + 1.645(s.d. / sqrt(n))
mean - 1.645(s.d. / sqrt(n)) + mean + 1.645(s.d. / sqrt(n)) = 2<span>μ = 5.22 + 5.98 = 11.2
</span><span>μ = 11.2 / 2 = 5.6
Thus, </span><span>mean - 1.645(s.d. / sqrt(n)) = 5.6</span><span> - 1.645(s.d. / sqrt(n)) = 5.22
5.6 - 5.22 = </span><span>1.645(s.d. / sqrt(n)) = 0.38
</span><span><span>s.d. / sqrt(n) = 0.38 / 1.645 = 0.231
</span>The 95% confidence interval is given by </span>mean - 1.96(s.d. / sqrt(n)) < μ < mean + 1.96(s.d. / sqrt(n)) = 5.6 - 1.96(0.231) < <span>μ < 5.6 + 1.96(0.231) = 5.6 - 0.4528 < </span><span>μ < 5.6 + 0.4528 = 5.15 < </span><span>μ < 6.05
The 95% confidence interval provides more information because it has a larger interval.</span>