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cherylmorton7302
19.11.2020 •
Mathematics
What is mLA?
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Ответ:
The Modern Language Association of America, often referred to as the Modern Language Association, is the principal professional association in the United States for scholars of language and literature. The MLA aims to "strengthen the study and teaching of language and literature".
Step-by-step explanation:
Ответ:
84 degrees
Step-by-step explanation:
To find the measure of angle a you must first find m<CED. To do this remember every triangle has a measure of 180.
180-(43+35)=102, that means m<CED=102. Also m<CED=m<AEB because they are vertical angles. So now do the same operation but for the other triangle 180-(102+18)=84. So m<A=84.
Ответ:
Explanation:
Start by rearranging the table for better understanding of each step.
Step Work Reasoning
0 −8.3 + 9.2 − 4.4 + 3.7 Original problem
1 −8.3 + 9.2 + 4.4 + 3.7 Additive inverse
2 −8.3 + 4.4 + 9.2 + 3.7 Commutative property
3 −8.3 + (4.4 + 9.2 + 3.7) Associative property
4 −8.3 + 17.3 Simplify
5 9 Simplify
In the first step, it was used the addtive inverse property and the number -4.4 was changed to 4.4. This is a mistake because that changes the value of the expression. Any step that you use to solve the expression must not change its value but just lead step-by-step to the final value of the whole expression.
The additive inverse property is used in equations in order to isolate a variable by adding the additive inverse of a number to both sides of the equation. This is based in the addtiion or subtraction property of the equality which state that you can add or subtract the same number to both sides of the equation without modifiying the value.
Then, the feedback to Allen may that that the first step is wrong, and he must , instead, start with the commutative property, then associate the two negative numbers, -8.3 and -4.4. With that the correct steps are:
Step Work Reasoning
0 −8.3 + 9.2 − 4.4 + 3.7 Original problem
1 −8.3 - 4.4 + 9.2 + 3.7 Commutative property
2 (−8.3 - 4.4) + (9.2 + 3.7) Associative property
3 − 12.7 + 12.9 Simplify
4 0.2 Simplify
The final value is 0.2.