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Liula [17]
3 years ago
5

Which situation can be represented by the expression 5−8

Mathematics
2 answers:
SOVA2 [1]3 years ago
8 0

Answer:i bought something for $8 but I have $5 to pay

Step-by-step explanation:

I bought something for $8 but I have $5 to pay, which means am still owing -3

TEA [102]3 years ago
4 0

Answer:

Tammy had 5 dollars left on her credit card but she saw a shirt that cost 8 dollars so now she has -3 dollars in her bank account.

Step-by-step explanation:

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An automobile manufacturer is considering using robots for part of its assembly process. Converting to robots is an expensive pr
LenKa [72]

Answer:

(a) The correct option is: <em>H₀</em>: <em>p</em> = 0.02 vs. <em>Hₐ</em>: <em>p</em> < 0.02.

(b) Explained below.

(c) The better value of <em>α</em> will be 0.10.

Step-by-step explanation:

An automobile manufacturer is considering using robots for part of its assembly process only if there is strong evidence that the proportion of defective installations is less for the robots than for human assemblers.

To test whether the proportion of defective installations is less for the robots than for human assemblers use a single-proportion <em>z</em>-test.

(a)

The hypothesis can be defined as:

<em>H₀</em>: The proportion of defective installations is same for both the robots and  human assemblers, i.e. <em>p</em> = 0.02.

<em>Hₐ</em>: The proportion of defective installations is less for the robots than for human assemblers, i.e. <em>p</em> < 0.02.

The alternate hypothesis is the claim or the statement that is being tested.

In this case we need to test whether the proportion of defective installations is less for the robots than for human assemblers or not, so that the manufacturer can decide whether they want to apply the conversion.

Thus, the correct option is:

<em>H₀</em>: <em>p</em> = 0.02 vs. <em>Hₐ</em>: <em>p</em> < 0.02.

(b)

A type I error occurs when we discard a true null hypothesis and a type II error is made when we fail to discard a false null hypothesis.

In this case a type I error will be committed if conclude that the proportion of defective installations is less for the robots than for human assemblers when in fact it is not.

And a type II error will be committed if we fail to conclude that proportion of defective installations is less for the robots than for human assemblers.

(c)

The power of the test is the probability of rejecting a false null hypothesis.

The power of the test sis affected by the significance level of the test (<em>α</em>).

Lesser the significance level of the test the lesser is the power of the test.

If the value of <em>α</em> is reduced from 0.05 to 0.01 then the region of acceptance will increase. This implies that there is low probability of rejecting the null hypothesis even when it is false.

So higher the value of <em>α</em> the higher is the probability of making a correct decision.

Thus, the better value of <em>α</em> will be 0.10.

3 0
3 years ago
Out of 2000 families with four Children each,
Molodets [167]

Answer:

Two boys

Step-by-step explanation:

Please mark me as brainliest

8 0
1 year ago
Read 2 more answers
Elyse has $18 on a gift card that she can use to rent movies online. The graph at the right shows the amount of money remaining
blsea [12.9K]

Answer:

see the explanation

Step-by-step explanation:

The complete question in the attached figure

Let

x ----> the number of movies

y ----> the amount of money remaining on her gift card

we know that

The slope of the linear equation is equal to the unit rate

take two points from the graph

(0,18) and (2,12)

Find the slope

m=(12-18)/(2-0)

m=(-6)/(2)=-\$3\ per\ movie ---> is negative because is a decreasing function

That means -----> Each movie she rents cost her $3, so her  gift card balance will decrease $3 for every movie rented

The linear equation is equal to

y=-3x+18

For y=0

0=-3x+18

x=6

so

6 is the maximum number of movies that Elyse can rent on line

6 0
3 years ago
Which of the following is NOT a way to determine if a piece of art is a reproduction or an original?
sergij07 [2.7K]

Answer:

its either family history or morellian analysis , im not sure

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
What does this mean I need help?
chubhunter [2.5K]

Answer:

Step-by-step explanation:

x > 3 reads x is greater than three. This includes all numbers to the right of three, but not three itself.    |₋₋|₋₋|₋₋₀---|---|---|---|---|---|----->

                                             0 1  2  3  4  5  6  7  8  9

x ≤5  reads x is less than or equal to five. This includes all numbers to the left of and including the number 5    <--|---|---|---|---|---|---|--•₋₋₋|₋₋|₋₋₋|₋₋₋|₋₋₋₋

                                                           -2 -1  0  1  2  3  4  5  6  7  8  9

x ≥ -4 reads x is greater than or equal to minus four. This includes all numbers to the right of and including -4.    

 |₋₋₋|₋₋₋|₋₋₋•---|---|---|---|---|---|---|-->

-7 -6  -5  -4 -3 -2  -1  0  1  2  3

6 0
2 years ago
Read 2 more answers
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