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frez [133]
3 years ago
5

Traffic police measure the speed of the incoming vehicles. The speeds are normally distributed with a mean of 70 km/hr and a sta

ndard deviation of 10 km/hr. What percentage of vehicles would-be travelling at random has a speed less than 80 Km/hr?
Mathematics
1 answer:
Varvara68 [4.7K]3 years ago
6 0

Answer:

Ayayai Company has an old factory machine that cost $63,000. The machine has accumulated depreciation of $35,280. Ayayai has decided to sell the machine. (Credit account titles are automatically indented when amount is entered. Do not indent manually. If no entry is required, select "No Entry" for the account titles and enter 0 for the amounts.)

Step-by-step explanation:

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There are 18 bulls and 45 cows on a ranch. If 4 more bulls and 4 more cows were added, will the ratio of bulls to cows remain th
Elanso [62]
Here is how to solve this:

18 +4 = 22 bulls

45 + 4 = 50 cows

The original ratio was, 18:45 but now its 22:50 so, no the ratio will not be the same.
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5 0
3 years ago
Helppppppppppppppppp asappppppp
Pani-rosa [81]

Answer:

140

Step-by-step explanation:

<u>As per picture:</u>

∠PTQ  and ∠RTS are vertical angles and they are equal

  • ∠PTQ = (x + 28)°
  • ∠RTS = (2x + 16)°
  • ∠PTQ  = ∠RTS
  • x + 28 = 2x + 16
  • 2x - x = 28 - 16
  • x = 12

∠PTR is supplementary with ∠PTQ  and their sum is 180°

  • ∠PTQ = 12 + 28 = 40°
  • ∠PTR = 180 - 40 = 140°

6 0
3 years ago
What's the prime factorization of 105
9966 [12]
105 is a composite number. 105 = 1 x 105, 3 x 35, 5 x 21, 7 x 15. Factors of 105: 1, 3, 5, 7, 15, 21, 35, 105. Prime factorization: 105 = 3 x 5 x 7.
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A high school has 2,000 students.
Rama09 [41]

Answer:

18 students

Step-by-step explanation:

I TOOK THE TEST Pls mark brainliest...

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3 years ago
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