I believe <span>angle 1 is 115°
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Answer:
Step-by-step explanation:
5n + 5 = 45
Coefficient of n = 5
Constant = 5 & 45
Table:
x y
-3 0.5
-2 1
-1 2.5
0 5
1 8.5
Now, y = ax^2 + bx + c
Start replacing x = 0 and y = 5
5 = a(0) + b(0) + c => c = 5.
Now, replace any other two pair of data:
(-2, 1) => -1 = a(-2)^2 + b(-2)
-1 = 4a - 2b
(1, 8.5) => 8.5 = a(1)^2 + b(1)
8.5 = a + b
Solve the system
4a - 2b = - 1
a + b = 8.5
=>
4a - 2b = - 1
2a + 2b = 17
-------------------------
6a = 16
=> a = 16 / 6 = 8/3
b = 8.5 - a = 17/2 - 8/3 = 35/6
=> y = (8/3)x^2 + (35/6)x + 5 <--------- answer
Answer: cumulative frequency
Step-by-step explanation:
- A frequency is the number of times a data value occurs.
- A relative frequency is the fraction or proportion of times an answer occurs.
- The cumulative frequency analysis is the analysis of the frequency of occurrence of values of a phenomenon less than a reference value.
In a data set, the cumulative frequency for a value x is the total number of scores that are less than or equal to x.
Hence, cumulative frequency represents the number of times all outcomes less than a given outcome occur.
Answer:
HERE U GO
Step-by-step explanation:
