Question

Which expression is equivalent to (–2)(a + 6)?
(1 point)
Responses

–2a + 6
–2 a + 6

2a + 12
2 a + 12

–2a – 12
–2 a – 12

–2a + 12
–2 a + 12
Answer
To which subsets of real numbers does the number –22 belong? Choose all subsets that apply.
(1 point)
Responses

whole numbers
whole numbers

rational numbers
rational numbers

integers
integers

irrational numbers
irrational numbers

natural numbers
natural numbers
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Answer
What is an algebraic expression for the following word phrase: "6 times the difference of b and p?"
(1 point)
Responses

6b – p
6 b – p

6(b – p)
6( b – p )

6 – bp
6 – bp

6bp
Answer
What is the simplified form of the expression?

Start Fraction 5 left-parenthesis 14 minus 2 right-parenthesis squared over 2 End Fraction
(1 point)
Responses

60
60

30
30

72
72

360
Answer
Evaluate u + xy, if u = 18, x = 10, and y = 8.
(1 point)
Responses

188
188

36
36

98
98

224
Answer
A square field has an area of 479 ft2. What is the approximate length of a side of the field? Give your answer to the nearest foot. Explain your response.
Answer
Enter your answer and show all the steps that you use to solve this problem in the space provided.

Simplify the expression (7+5)+4⋅13−2.

Answered by GPT 3.5
The expression that is equivalent to (–2)(a + 6) is -2a - 12.
Answered by GPT 3.5
The subsets of real numbers that the number -22 belongs to are integers and rational numbers.
Answered by GPT 3.5
The algebraic expression for the word phrase "6 times the difference of b and p" is 6(b - p).
Answered by GPT 3.5
The simplified form of the expression is 30.
Answered by GPT 3.5
To evaluate u + xy, substitute the values of u, x, and y into the expression:

u + xy = 18 + (10)(8) = 18 + 80 = 98.

Therefore, the answer is 98.
Answered by GPT 3.5
To find the length of a side of the square field, we need to take the square root of the area.

The square root of 479 is approximately 21.9.

Since we need to give our answer to the nearest foot, we round 21.9 to the nearest foot, which is 22.

Therefore, the approximate length of a side of the field is 22 feet.
Answered by GPT 3.5
To simplify the expression (7+5)+4⋅13−2, we follow the order of operations (PEMDAS/BODMAS):

Step 1: Perform the operation within the parentheses: (7+5) = 12.
(12)+4⋅13−2.

Step 2: Perform the multiplication: 4⋅13 = 52.
(12)+52−2.

Step 3: Perform the addition and subtraction in order from left to right: 12+52 = 64, then 64−2 = 62.

Therefore, the simplified expression is 62.

To summarize the steps:
(7+5)+4⋅13−2 = 62