Evaluate the expression 3.14(a2 + ab) when a = 3 and b = 4.
Answers
Answer:
65.94
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
- Left to Right
Step-by-step explanation:
Step 1: Define
Identify
3.14(a² + ab)
a = 3
b = 4
Step 2: Evaluate
- Substitute in variables: 3.14(3² + 3 · 4)
- (Parenthesis) Exponents: 3.14(9 + 3 · 4)
- (Parenthesis) Multiply: 3.14(9 + 12)
- (Parenthesis) Add: 3.14(21)
- Multiply: 65.94
Hey there!
3.14(a^2 + ab)
= 3.14(3^2 + 3 *4)
3^2
= 3 * 3
= 9
3 * 4
= 12
3.14(9 + 12)
9 + 12
= 21
3.14(21)
= 65.94
Answer: 65.94
Good luck on your assignment and enjoy your day!
~Amphitrite1040:)
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Answers
Final Answer: 5a
Explanation:
Sure! Let's simplify this step by step.
Given \sqrt{25a^2}
Step 1: Recognize that the given expression \sqrt{25a^2} represents the square root of 25 times the square of 'a'.
Step 2: Break down the expression into two parts. We have a perfect square (25) and a square term (a^2). We can separate these inside the root as follows:
\sqrt{25} * \sqrt{a^2}
Step 3: Simplify \sqrt{25}. Since 25 is a perfect square, its square root is 5. Also, simplify \sqrt{a^2}. The square root of a^2 is 'a'. Now, we have:
5 * a
Therefore, the simplified form of \sqrt{25a^2} is 5a.
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Answer:
Step-by-step explanation:
Sqrt(25a^2)
Sqrt((5a)^2)
5a
Answers
Answer:
12 blue necklaces + 12 red necklaces = 24 necklaces. He will have 1 blue bead left over and 1 red bead left over.
Step-by-step explanation:
37/3 = 12.333 or 12 r1
25/2= 12.5 or 12 r1
1+1=2
Answers
Answer:
Step-by-step explanation:
Answers
Answer:
The first one
Step-by-step explanation:
Bc it the right awnswer
4 ft
/60
HINT: Find the height using TRIGONOMETRY. Round to the nearest hundredth.
A =
feet squared
Answers
The area of the parallelogram is given by A = 17.32 feet²
Given data ,
Let the area of the parallelogram be represented as A
Now , the value of A is
Let the height of the parallelogram be h
where from the trigonometric relation , we get
sin 60° = h / 4
On simplifying , we get
h = 4 ( √3/2 )
h = 2√3 feet
Now , the area of parallelogram = base x height
A = 2√3 ( 5 ) feet²
A = 10√3 feet²
A = 17.32 feet²
Hence , the parallelogram has an area of A = 17.32 feet²
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