3 years ago

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:

(-)(-) = +

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

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

$- \frac{2}{45}$

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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,

$=144$

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3 years ago

Brut [27]

-4 lol what’s this about

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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:

Step-by-step explanation:

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3 years ago

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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

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3 years ago

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

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