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notsponge [240]
3 years ago
5

Use benchmark values to estimate 7/10 + 7/8.​

Mathematics
1 answer:
allsm [11]3 years ago
4 0

Answer:

1.575

Step-by-step explanation:

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I need help fast please
marta [7]

Step-by-step explanation:

(-)(-) = +

-  \frac{3}{5}  +  \frac{5}{9}

-   \frac{27}{45}  +  \frac{25}{45}

- \frac{2}{45}

8 0
3 years ago
Managers at an automobile manufacturing plant would like to estimate the mean completion time of an assembly line operation, . T
Vinil7 [7]

Answer:

The appropriate answer is "144".

Step-by-step explanation:

Given:

Population standard deviation,

\sigma=10.4

Margin of error,

E=1.7

CL=95 %

CL=1-\alpha

Or,

\alpha=1-CL

  =1-0.95

  =0.05  

Now,

Critical value,

= Z_{\frac{\alpha}{2} }

= Z_{\frac{0.05}{2} }

= 1.96

The minimum sample size will be:

⇒ n=\frac{Z^2_{\frac{\alpha}{2} }(\sigma)^2}{E^2}

By putting the values, we get

       =\frac{(1.96)^2(10.4)^2}{(1.7)^2}

       =\frac{415.5074}{2.89}

       =143.774

or,

       =144  

3 0
3 years ago
Y
Brut [27]
-4 lol what’s this about
4 0
3 years ago
Select the car that has the best fuel efficiency (greatest number of kilometers per liter of gasoline). Choose 1 answer: Choose
emmasim [6.3K]

Answer:

B

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
if one glass contians 175ml of juice ,determine the maximum number of glasses that can be filled with 10litre​
monitta

Answer:

57 1/7

Step-by-step explanation:

1 glass = 175ml or 0.175litres what about 10litres

6 0
3 years ago
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