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-Dominant- [34]
3 years ago
10

The table shows values that represent a function x -2,-3,6,7,5 y 4,2,1,3,4 write values that represent the inverse of the functi

on represented in the table above
Mathematics
1 answer:
blsea [12.9K]3 years ago
8 0

Answer:

  x 4,2,1,3,4

  y -2,-3,6,7,5

Step-by-step explanation:

The inverse relation has x- and y-values swapped:

  x 4,2,1,3,4

  y -2,-3,6,7,5

__

Since the same x-value appears more than once in this relation, it is <em>not a function</em>.

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A wedding website states that the average cost of a wedding is $25,809. One concerned bride hopes that the average is less than
lapo4ka [179]

Answer:

1)

Null hypothesis            H₀ : μ = 25,809

Alternative hypothesis H₁ : μ < 25,809

2) Test Statistic = -1.44

3) Conclusion:

The result is significant, there is sufficient evidence to support the bride’s hope at the 0.10 level of significance.

Step-by-step explanation:

Given the data in the question;

Sample mean x" = 24,638

sample size n = 46

standard deviation σ = 5531

level of significance ∝ = 0.10

NULL and ALTERNATIVE HYPOTHESIS

Null hypothesis            H₀ : μ = 25,809

Alternative hypothesis H₁ : μ < 25,809

TEST STATISTICS

Z = (x"-μ) / σ√n

we substitute

Z = (24,638 - 25,809) / (5531/√46)

Z = -1171 / 815.5

Z = -1.44

Test Statistic = -1.44

Now, from normal z-table;

P-value = P( Z < -1.44 ) = 0.0749

P-value = 0.0749

Since P-value ( 0.0749 ) is less than level of significance ( 0.10 ), we reject H₀.

Conclusion:

The result is significant, there is sufficient evidence to support the bride’s hope at the 0.10 level of significance.

6 0
3 years ago
C(0)= -.30(12-12)^2 + 40 (what it equals to
anygoal [31]
12-12 is 0, so -.30(12-12)^2 = 0

c(0) = 40
3 0
3 years ago
What is 2 2/5 times 3/4 equal in medical term
Stels [109]

Answer:

the answe is 3.3

Step-by-step explanation:

3 0
3 years ago
Ben has square garden that has sides measuring 12 feet. Ben want to increase every side of his garden by x, feet in order to pla
Valentin [98]

Answer:

  • (a) 104 = 4(12+x)
  • (b) x = 14

Step-by-step explanation:

(a) The new side length of Ben's garden is (12+x), since x is the amount of increase above the existing 12 ft side length.

The perimeter is the sum of the lengths of the four equal sides, so is ...

  perimeter = 4 × side length

  104 = 4(12+x)

(b) We can solve this by dividing by 4, then subtracting 12.

  26 = 12 +x . . . . . divide the above equation by 4

  14 = x . . . . . . . . . subtract 12

The solution is x = 14.

4 0
3 years ago
What are the composite factor of 20
Stella [2.4K]

Answer:

<h2>4×4+<em><u>4</u></em></h2>

Step-by-step explanation:

<em><u>hope</u></em><em><u> </u></em><em><u>its</u></em><em><u> </u></em><em><u>helpful</u></em>

4 0
3 years ago
Read 2 more answers
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