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joja [24]
3 years ago
14

ANOTHER 20 POINTS

Mathematics
2 answers:
Mnenie [13.5K]3 years ago
7 0

Answer:

$960

Step-by-step explanation:

1/5= .2

1-0.2= 0.8

1200×0.8= 960

torisob [31]3 years ago
3 0
ANSWER: $960

1/5 = 20%
20% = .2

1200 x .2 = 240

$1200 - $240 = $960
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Answer:

78*78+30*30+20*20+72

7456

Step-by-step explanation:

6 0
3 years ago
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Bashir works in a weather station and has launched a weather ballon. The height of the baloon is 4 kilometers and it is 1 kilome
andrew-mc [135]

<u><em>Answer:</em></u>

(c) 4.1 km

<u><em>Explanation:</em></u>

We are given that the height of the balloon is 4 km and that it is 1 km away from the station.

Setting up the diagram that describes the given scenario, we would end up with a right-angled triangle as the one shown in the attached image

<u>where:</u>

height of the balloon = 4 km represents one side of the triangle

distance between the base of the balloon and the station = 1 km represents the other side

distance between the balloon and the station is the length we want to find and it represents the hypotenuse of the triangle.

<u>To get the length of the hypotenuse, we will use the Pythagorean theorem</u>

hypotenuse = +\sqrt{(side1)^2 + (side2)^2}

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hypotenuse = +\sqrt{(4)^2 + (1)^2} = √17 ≈ 4.1 km

Hope this helps :)


3 0
3 years ago
Indicate whether the following analysis involves a statistical test. If it does involve a statistical test, state the population
eimsori [14]

Answer:

Yes, The analysis involves a statistical test.

The hypothesis are H_0: \mu_R = \mu_L,\ and\ H_A: \mu_R < u_L

Step-by-step explanation:

Consider the provided information.

Testing 500 right-handed participants on the reaction time of their left and right hands to determine if there is evidence for the claim that the right hand reacts faster than the left.

Yes, The above analysis involves a statistical test.

Where claim is right hand reacts faster than the left hand.

If right hand reacts faster that means the reaction time of right hand should be smaller than the reaction time of left hand.

Let \mu_R to be the average reaction time of their right hands for the right-handed participants and \mu_L to be the average reaction time of their left hands.

Therefore, the hypothesis are H_0: \mu_R = \mu_L,\ and\ H_A: \mu_R < u_L

3 0
3 years ago
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Allushta [10]

Answer:

< LK

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The higher the angle, the bigger the opposite side, so since 123 is bigger than 114, LK is bigger than MN

6 0
3 years ago
A vending machine accepts​ nickels, dimes, and quarters. Exact change is needed to make a purchase. How many ways can a person w
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