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Anton [14]
2 years ago
15

Can someone help me do this darn work plz

Mathematics
2 answers:
PSYCHO15rus [73]2 years ago
5 0

Answer:

13. 17/20

14. 11/100

16.) 4 3/10

17.) 7 3/4

19.) -1 3/5-

20.) 3/8

22.) -5 3/5

23.) 1 3/25

26.) 85.33%

astraxan [27]2 years ago
4 0

Answer:

13. 17/20

14. 11/100

16. 4 3/10

17. 7 3/4

19. 1 3/50

20. 3/8

22. -5 3/5

23. 1 3/25

25. 6.34%

26. 85.33%

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Congress regulates corporate fuel economy and sets an annual gas mileage for cars. A company with a large fleet of cars hopes to
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Answer:

There is sufficient evidence that fuel economy goal has been attained.

Step-by-step explanation:

The hypothesis :

H0 : μ < 30.2

H1 : μ ≥ 30.2

The test statistic :

(xbar - μ) ÷ (s/√(n))

xbar = 32.12 ; s = 4.83 ; n = 50

Test statistic :

(32.12 - 30.2) ÷ (4.83/√(50))

1.92 ÷ 0.6830651

T = 2.811

Using the Pvalue from test statistic calculator :

Since we used the sample standard deviation, we use the T distribution

df = n - 1 = 50 - 1 = 49

Pvalue(2.811, 49) ; one tailed = 0.00354

At α = 0.05

Pvalue < α ; then we reject the null and conclude that there is sufficient evidence that fuel economy goal has been attained

4 0
3 years ago
What is 3 3/4 + 2 5/7
Marina CMI [18]

Answer:

6 13/28

Step-by-step explanation:

Hope this helps!

4 0
2 years ago
How many planes are shown in the figure?
grigory [225]

check the picture below.

8 0
3 years ago
How to figure a composite figure area
photoshop1234 [79]

Answer:

To find the area of a composite figure or other irregular-shaped figure, divide it into simple, nonoverlapping figures. Find the area of each simpler figure, and then add the areas together to find the total area of the composite figure.

Step-by-step explanation:

Did this help, do you need an example

8 0
2 years ago
Does anyone know the answer
erik [133]

Answer:

d = 126, z = 28

Step-by-step explanation:

The angle with the variable is diagonal from the 105 degree angle. In this case, that means that they are equivalent. So, 105+21 = 126. d = 126 :)

8 0
2 years ago
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