The mean score (rounded to 2 DP) in the Math's test for class B is 86.86.
<h3>What is an
equation?</h3>
An equation is an expression that shows the relationship between two or more numbers and variables.
Class A has 15 pupils and class B has 29 pupils. The mean score for class A is 55. Hence:
Mean score of A = (sum of all scores) / 15
55 = (sum of all scores) / 15
sum of all scores in A = 825
The mean score for both classes is 76. Hence:
[(sum of all scores in A) + (sum of all scores in B)]/(total number of pupils) = mean score of both classes
[825 + (sum of all scores in B)]/(15 + 29) = 76
sum of all scores in B = 2519
Mean score of B = (2519) / 29 = 86.86
The mean score (rounded to 2 DP) in the Math's test for class B is 86.86.
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Answer:
number 2
Step-by-step explanation:
educated guess
Step-by-step explanation:
Given functions are:
h(x) is the product of g(x) and f(x)
Combining like terms
Hence,
Keywords: Functions, product
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Answer:
C.
Step-by-step explanation:
The next step is to add (1/2 * 8)^2 = 4^2 = 16 to the 8x and subtract 16 from the + 6:
- to give (x^2 + 8x + 16) + 6 - 16 as the next step in the process.
The extreme minimum is +6 - 16 = -10.
The number of pearls in the large box is 16.
<h3>How many pearls are in the large box?</h3>
Multiplication is the process of determining the product of a number through applying a set of mathematical rules.
The total number of pearls in the large box = total number of pearls in the small boxes + 1
(3 x 5) + 1 = 16.
To learn more about multiplication, please check: brainly.com/question/3385014
