Multiple Choice
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
The correct expression that is equivalent to (–2)(a + 6) is:
–2a – 12
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
To which subsets of real numbers does the number –22 belong?
The correct subsets that apply are:
- Integers
- Rational numbers
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
The correct algebraic expression for the word phrase "6 times the difference of b and p" is:
6(b – p)
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
The simplified form of the expression Start Fraction 5 left-parenthesis 14 minus 2 right-parenthesis squared over 2 End Fraction is 30.
what is the answer
Apologies for the confusion. The correct answer is 72.
Evaluate u + xy, if u = 18, x = 10, and y = 8.
(1 point)
Responses
188
188
36
36
98
98
224
To evaluate u + xy, substituting the values u = 18, x = 10, and y = 8, we get:
u + xy = 18 + (10)(8)
u + xy = 18 + 80
u + xy = 98
The correct answer is 98.
Note: Your teacher will grade your response to ensure that you receive proper credit for your answers.
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.
(2 points)
To find the length of a side of the square field, we need to take the square root of the given area of 479 ft².
Taking the square root of 479, we get the approximate length of a side:
√479 ≈ 21.87 ft
Rounding to the nearest foot, the approximate length of a side of the field is 22 ft.
We round up to 22 ft because it is closer to the actual value of 21.87 ft than rounding down to 21 ft. This ensures that we don't underestimate the length and maintain a conservative estimate.
what is the answer
The approximate length of a side of the square field is 22 ft.
Decide which of the following day-to-day activities might be considered aerobic exercise?
(1 point)
Responses
Surfing the web
Surfing the web
Taking a catnap
Taking a catnap
Mowing the lawn
Mowing the lawn
Paying bills
The day-to-day activity that might be considered aerobic exercise out of the given options is: Mowing the lawn.
The word cardio refers to _________.
The word "cardio" refers to cardiovascular exercise.
A minimum of how many minutes is needed to achieve the benefits of cardiovascular activity?
(1 point)
Responses
10-15
10-15
20-30
20-30
30-45
30-45
45-60
45-60
A minimum of 20-30 minutes is needed to achieve the benefits of cardiovascular activity.
What is the formula for finding your Maximum Heart Rate?
(1 point)
Responses
220 - your age
220 - your age
220 + your age
220 + your age
220 x your age
220 x your age
220 / your age
The correct formula for finding your Maximum Heart Rate is: 220 - your age.
Decide which of the following sports can be the most beneficial in achieving cardiovascular fitness.
(1 point)
Responses
Soccer
Soccer
Baseball
Baseball
Football
Football
Golf
The sport that can be the most beneficial in achieving cardiovascular fitness out of the given options is: Soccer.
Which of the following is NOT considered a low intensity cardiovascular activity?
(1 point)
Responses
Walking
Walking
Bicycling
Bicycling
Hiking
Hiking
Leisurely paced swimming
Bicycling is NOT considered a low-intensity cardiovascular activity.
Which finger should you NOT use when taking a pulse?
(1 point)
Responses
Thumb
Thumb
Middle
Middle
Pinky
Pinky
Index
You should NOT use your thumb to take a pulse.
Which of the following machines in the gym is NOT used for cardiovascular fitness?
(1 point)
Responses
Stair Climber
Stair Climber
Treadmill
Treadmill
Weight machine
Weight machine
Elliptical trainer