Twice a number plus 4 is 8
2 answers:
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Answer:
Step-by-step explanation:
Ashton estimates the square root of 72 in the following way:
√72=
2√36=
2×6=12
a) Explain why his reasoning is incorrect
This is incorrect because is the correct answer but he has missed the square root term on 2.
or can be written as:
b) Estimate the square root of 72 to the nearest tenth without using your calculator. Show your work.
Find the factors of 72 we get
Now, we will combine 2 terms if the are same so,
REQUIRED:
Round to 3 decimal placed the value of the irrational number e.
Step-by-step solution/explanation;
The letter e in mathematics is also known as the Eular's number and is a mathematical constant used in many calculations especially natural logarithms of numbers.
The value of the Eular's number is approximately;
It can continue till infinity, however approximations of this number is always used to avoid unnecessary complications.
Therefore, rounded to 3 decimal places, the value of e is now;
ANSWER:
Note that we take 3 digits aftre the decimal and then if the fourth digit after the decimal is 5 or greater than 5, we make it 1 and add that 1 to the third digit after the decimal. Otherwise we simply make it zero and cancel it along with all other digits after it.
The digit that follows 8 (third digit) is less than 5, therefore, we write it off along with all other digits after it, and we are left with the decimal point and then ...718.
Option C is the correct answer.