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julia-pushkina [17]
3 years ago
7

Select all the correct answers.

Mathematics
2 answers:
vlabodo [156]3 years ago
7 0
Car load and insurance premium
tamaranim1 [39]3 years ago
7 0

Answer:

-fuel cost

-groceries

Step-by-step explanation:

Variable expense: Amount of money paid on this expense changes every month

Non-discretionary: This is an expense that you cannot get by without

In today's world, you need fuel for your car in order to travel to your job and other places, therefore it is non-discretionary. The amount you spend on fuel changes every month because you do not travel the same exact distance every month, so it is also a variable expense.

You need groceries to live, therefore it is non-discretionary. The amount you spend on groceries changes every month as well, so it is also a variable expense.

You can eliminate the other options because:

Car loan payment = fixed expense (not non-discretionary)

Gym membership = fixed expense and also discretionary (you can live without it)

Insurance premium = fixed expense

Vacation cost = discretionary

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Bookstore sells book in excellent condition for $2.50 and in fair condition for $0.50 . Write an expression for cost of buying x
alexdok [17]
X = excellent condition books
y = fair condition books

2.50x + 0.50y <== ur expression
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3 years ago
Jamal is painting his room. He determines that a 1/2 gallon container of paint will cover 1/6 of a wall. How many gallons of pai
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Read 2 more answers
Factor x^3 -7x^2 -5x+35 by grouping. what is the resulting expression
Anni [7]

Answer:

(x-7) (x^2-5)

Step-by-step explanation:

x^3 -7x^2 -5x+35

Make 2 groups

x^3 -7x^2      -5x+35

Factor x^2 from the first group and -5 from the second group

x^2 (x-7)       -5(x-7)

Now factor (x-7) out

(x-7) (x^2-5)

8 0
3 years ago
A hardware store receives a shipment of bolts that are supposed to be 12 cm long. The mean is indeed 12 cm, and the standard dev
Yuliya22 [10]

Answer: 0.9104

Step-by-step explanation:

Given : A hardware store receives a shipment of bolts that are supposed to be 12 cm long.

Mean : \mu=12\text { cm}

Standard deviation : \sigma= 0.2\text{ cm}

Sample size : n=10

Since, they will declare the shipment defective and return it to the manufacturer if the average length of the 100 bolts is less than 11.97 cm or greater than 12.04 cm.

So for the shipment to be satisfactory, the length of the bolts must be between 11.97 cm and 12.04 cm.

We assume that the length of the bolts are normally distributed.

Let X be the random variable that represents the length of randomly picked bolt .

For Z score : z=\dfrac{x-\mu}{\dfrac{\sigma}{\sqrt{n}}}

For x = 11.97

z=\dfrac{11.97-12}{\dfrac{0.2}{\sqrt{100}}}=-1.5

For x = 12.04

z=\dfrac{12.04-12}{\dfrac{0.2}{\sqrt{100}}}=2

By using the standard normal distribution table ,  the probability that the shipment is found satisfactory will be :-

P(511.97

Hence,  the probability that the shipment is found satisfactory=0.9104

3 0
3 years ago
2. Which statement is true of points X and Y
Delvig [45]

Answer:

c

Step-by-step explanation:

5 0
3 years ago
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