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Mazyrski [523]
3 years ago
6

A family visits a car show to research information on vehicles they might consider purchasing. Brochures for each vehicle provid

e helpful information for the vehicle. Which of the following is an example of a discrete quantitative variable that might be included in the brochure? A. number of seats B. type of transmission C. presence of a sunroof D. fuel efficiency (in mpg)
Mathematics
1 answer:
djyliett [7]3 years ago
7 0

Answer:

Option A:

Number of seats

Step-by-step explanation:

A discrete quantitative variable is a variable that can be enumerated. This means that they are in units in which numbers can be assigned to and can be counted.

The number of seats present in the car can be counted. This feature can also be evaluated based on its numeral value, rather than its quality. In a simple form, the buyers feel that the more the number of seats present in the car, the more people it can carry. Hence, the family would love to buy a car with a good number of seats in it.

The other features in the options are rather continuous, qualitative, or boolean. Some of them are continuous because they cannot be counted e.g fuel efficiency. The others such as the presence of a sunroof can be seen as a boolean variable. (it can either be true or false)

Type of the transmission is a qualitative variable

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1. If a, b, c, d, and e are whole numbers and a(b(c
mars1129 [50]

Answer:

a CANNOT be even ⇒ answer A

Step-by-step explanation:

* Lets revise the rules of even and odd numbers

- Even numbers any number its unit digit is (0 , 2 , 4 , 6 , 8)

- Odd numbers any number its unit digit is (1 , 3 , 5 , 7 , 9)

# even + even = even ⇒ 2 + 4 = 6  

# odd + odd = even ⇒ 1 + 3 = 4  

# odd + even = odd ⇒ 1 + 2 = 3  

# even × even = even ⇒ 2 × 4 = 8

# odd × odd = odd  

⇒ 3 × 5 = 15

# odd × even = even  ⇒ 5 × 6 = 30

∵ a[b(c + d) + e] = odd

∵ odd × odd = odd  

∴ a must be odd and [b(c + d) + e] must be odd

∵ odd + even = odd

∵ odd × even = even

# Case 1

∴ b(c + d) must be odd  if e even

∵ b(c + d) is odd

∴ b must be odd and (c + d) must be odd

∵ c + d must be odd

∵ odd + even = odd

∴ c or d can be even

- We now now that e , c and d can be even

# case 2

∴ b(c + d) must be even  if e odd

∵ b(c + d) is even

∵ even × even = even

∴ b and (c + d) both can be even

∵ c + d can be even

∴ c or d can be even or odd

- We now now that e , c , d and b can be even

∴ Only a can not be even

* a CANNOT be even

5 0
3 years ago
Solve Word
alisha [4.7K]

Answer:

40 girls, 88 people total

Step-by-step explanation:

boys : girls

6 : 5

48 : ?

6 x 8 = 48, 5 x 8 = 40

40 girls

48 + 40 = 88

88 people total

4 0
3 years ago
Every day, Marco runs for 45 minutes and covers 5 miles. How long would it take him to run 2 miles?
vichka [17]
45 divided by 5 is 9, so it takes 9 minutes to cover 1 mile.
9 x 2 = 18.
8 0
3 years ago
I need help to find the surface area
Diano4ka-milaya [45]

Answer:

125.6 sq ft.

Step-by-step explanation:

To find the Surface Area of the cylinder, we will need to solve for the area of both bases and the rectangle around the cylinder. We can do this by:

------------------------------

Area of bases: (A=\pi r^{2})

A= \pi 2^{2}

A= 4\pi \\A= 12.56

Since we have two bases, we can simply multiply by 2, giving us:

12.56×2= 25.12

-------------------------------

Area of the rectangle: (C=d\pi)

C=4\pi\\C= 12.56\\

12.56×8= 100.48

Add these two together, giving us:

100.48+25.12= 125.6 sq ft.

8 0
3 years ago
A psychologist is studying how children acquire math skills. She gives the same question to children
ivann1987 [24]

Answer:

D:0.48

Step-by-step explanation:

Hopefully this helps!

7 0
3 years ago
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