He spent $9.50 in total. To find this answer, you write the equation 2(9.95) + 3(1.20). You would distribute getting 5.90 + 3.60= $9.50.
Answer:
D)

90 percent confidence interval for the proportion of all students in her district who read at least 1 book last month
(0.52846 , 0.75166)
Step-by-step explanation:
<u><em>Step:-1</em></u>
Given that the random sample size 'n' = 50
The sample proportion

90 percent confidence interval for the proportion of all students in her district who read at least 1 book last month

<u><em>Step(ii):-</em></u>
Level of significance = 0.90
Z₀.₉₀ = 1.645


(0.64 -1.645(0.06788) , (0.64 + 1.645(0.06788)
(0.52846 , 0.75166)
<u><em>Final answer:-</em></u>
90 percent confidence interval for the proportion of all students in her district who read at least 1 book last month
(0.52846 , 0.75166)
The square root of 10 because
sqrt(10) ^2 * 3.14 =
10*3.14 = 31.4
I am not sure how the answer is coming up as an "m+1+ or "m<span>-1" I am a ... </span>Factor<span>: : </span>4m^2<span> -18m + 14. We can simplify this, </span>factor<span> out </span>2 2(2m^2<span> - 9m + 7) ... FOIL (</span>5m+3)(m+1) : 15m^2<span> - </span>10m<span> - 25. </span>Factor<span> out </span>5 5(3m^2<span> - 2m - </span>5<span>) </span>Factors<span> to </span>3<span>(3m - </span>5)(m<span> + 1) FOIL this to confirm it : 50m^</span>3<span> - 2m. Simplify, </span>factor<span> out 2m 2m(</span>25m^2<span> - 1)</span>