3 years ago

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Mathematics

1 answer:

ycow [4]3 years ago

7 0

Answer:

A. 15.5 yards

Step-by-step explanation:

3.1 ×5=15.5

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Anthropologists and archaeologists study the cultures, languages, archaeological remains, and physical characteristics of people

balandron [24]

Answer:

ummm there's no question dude but it's good to know that because i never knew that

Step-by-step explanation:

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3 years ago

A train travels 360 km at a uniform speed, if speed has been increased it will take one hour less for the same journey then find

sesenic [268]

Answer:

Given distance=360 km.

Let the speed of the train be x km/hr.

Speed when increased by 5 km/hr =(x+5) km/hr

360

−

(x+5)

360

x(x+5)

[360x+1800−360x]

+5x−1800=0

+45x−40x−1800=0

x(x+45)−40(x+45)=0

(x−40)(x+45)=0

x=40,−45

The speed of the train is 40 km/hr.

Step-by-step explanation:

thanks... ☺️

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3 years ago

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The radius of a circle can be found by using the formula: r = . If the radius of the circle is 3 cm, find the circumference. Use

Aleonysh [2.5K]

C = 2 * (pi) * r
C = 2 * 3.14 * 3
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4 years ago

Which relationship in the triangle must be true?

forsale [732]

Answer:

sinB=cos(90-B)

Step-by-step explanation:

this is the relationship between sin and cos. other choices are wrong

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3 years ago