Answer:
5x^2+5x+3/3x^2+3x
Step-by-step explanation:
Answer:
f(x)= - 4 (
) + 3
Step-by-step explanation:
1. start with f(x)=a(
+q
2. in that vertex is (p,q) noticing that use given vertex(0,3) and change the equation/function --> f(x)=a(x-0)+3 --> f(x)=a(
+3
3. Then use the give point and substitute to find "a" value --> - 1 = a(
+3
--> - 1 = a + 3 --> a= - 4
4. put the "a" value into the #2. function/equation --> f(x)= - 4(
+3
Answer: 2.508
Step-by-step explanation:
As per give , we have
Sample size : n= 23
Degree of freedom : df= n-1=22
significance level : ![\alpha: 1-0.98=0.02](https://tex.z-dn.net/?f=%5Calpha%3A%201-0.98%3D0.02)
Since , the sample size is small (n<30) and population standard deviation is unknown.
So , we use t-test.
For confidence interval , we find two-tailed test value.
Critical t-value : ![t_{\alpha/2, df}=t_{0.01,22}](https://tex.z-dn.net/?f=t_%7B%5Calpha%2F2%2C%20df%7D%3Dt_%7B0.01%2C22%7D)
[using students's t-critical value table]
Hence, the critical value that should be used in constructing the confidence interval = 2.508
Answer:
130°
Step-by-step explanation:
50 + x = 180°