Answer:
-51
Step-by-step explanation:
<u>Step 1: Solve inside the parenthesis</u>
12 + 3(18 - 42) + 9
<em>12 + 3(-24) + 9</em>
<em />
<u>Step 2: Multiply</u>
12 + 3(-24) + 9
<em>12 - 72 + 9</em>
<em />
<u>Step 3: Combine the first two numbers</u>
(12 - 72) + 9
<em>-60 + 9</em>
<em />
<u>Step 4: Combine the last two numbers</u>
-60 + 9
<em>-51</em>
<em />
Answer: -51
Answer:
6 5/10
Step-by-step explanation:
Answer:
its associative prop of addition
Step-by-step explanation:
Answer:
0.2 ; 100 ; 4.84
Step-by-step explanation:
Given that the probability of each of the 5 groups is the same :
Sum of probability = 1
Hence, Probability of each group = 1 / number of groups = 1 / 5 = 0.2
Expected number for each interval for a sample of 500 : ; X = 500
E(X) = X * P(x) = 500 * 0.2 = 100
Goodness of fit (X²) :
X² = Σ(X - E)² ÷ E
Groups :
113, 95, 108, 99, and 85
X : 113 ____ 95 ____ 108 ____ 99 _____ 85
(113 - 100)^2 / 100 = 1.69
(95 - 100)^2 / 100 = 0.25
(108 - 100)^2 / 100 = 0.64
(99 - 100)^2 / 100 = 0.01
(85 - 100)^2 / 100 = 2.25
(1.69 + 0.25 + 0.64 + 0.01 + 2.25) = 4.84
6 people ride in 1 car. Because 7x6= 42, therefore makes it equal
