2 years ago

PLEASE HELP THANK YOU

Mathematics

1 answer:

Katen [24]2 years ago

5 0

Answer:

One metric ton is equal to a 1000 kilograms.

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The correct answer for this problem is 6,500 in one month

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2 years ago

A manufacturer of cell phone screens is concerned because 12 percent of the screens manufactured using a previous process were r

fomenos

Answer: A.

$H_0:p=0.12\\\\H_a:p$

Step-by-step explanation:

Null hypothesis $(H_0)$ : A statement describing population parameters as per the objective of the study. It usually takes "≤,≥,=" signs.

Alternative hypothesis $(H_a)$ : A statement describing population parameters as per the objective of the study. It usually takes ">, <, ≠" signs.

Let p be the proportion of screens that will be rejected.

12 percent of the screens manufactured using a previous process were rejected at the final inspection.

(i.e. p= 0.12)

Objective of the study = whether the new process<em> reduces </em>the population proportion of screens that will be rejected

i.e. p< 0.12

So, the appropriate hypotheses to investigate whether the new process reduces the population proportion of screens that will be rejected:

$H_0:p=0.12\\\\H_a:p$

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2 years ago

Common core math if Amanda walks an average speed of 2.72 miles per hour, how long will it take for her to walk 6.8 miles

QveST [7]

2.5 (2 hours and 30 mins) hours. Distance (6.8) divided by time (2.72). 6.8/2.72= 2.5

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3 years ago

What is the answer for 1 & 2 ?

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45 degrees
67.5 degrees

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2 years ago

What is the area of sector with a central angle of 160 and a diameter of 5.8 m? Round the answer to the nearest tenth.

Blizzard [7]

Answer:

$A=11.7\ m^2$

Step-by-step explanation:

Given that,

Central angle, $\theta=160^{\circ}$

Diameter,d = 5.8 m

Radius, r = 2.9 m

We need to find the area of sector. The formula for the area of sector is given by :

$A=\dfrac{\theta}{360}\times \pi r^2\\\\=\dfrac{160}{360}\times 3.14\times 2.9^2\\\\=11.7\ m^2$

So, the area of a sector is equal to $11.7\ m^2$ .

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2 years ago