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Wewaii [24]
3 years ago
13

Which pair shows equivalent expressions?

Mathematics
1 answer:
AVprozaik [17]3 years ago
3 0
The 3rd one because the rest you would have to distribute them and for the 3rd one it’s the same
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Two number cubes are rolled. What is the probability that the sum of the numbers rolled is either a 7 or an 11?
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25x5+15x3-40x2 anyone?
Kipish [7]

25 * 5 + 15 * 3 - 40 * 2 =

125 + 45 - 80 =

170 - 80 =

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spayn [35]

Answer:

x=4.4

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
6.
Rudik [331]

Answer:

  (a)  169.1 m

Step-by-step explanation:

The diagram shows you the distance (x) will be shorter than 170 m, but almost that length. The only reasonable answer choice is ...

  169.1 m

__

The relevant trig relation is ...

  Cos = Adjacent/Hypotenuse

The leg of the right triangle adjacent to the marked angle is x, and the hypotenuse is 170 m. Putting these values into the equation, you have ...

  cos(6°) = x/(170 m)

  x = (170 m)cos(6°) ≈ (170 m)(0.994522) ≈ 169.069 m

The horizontal distance covered is about 169.1 meters.

_____

<em>Additional comment</em>

Expressed as a percentage, the slope of this hill is tan(6°) ≈ 10.5%. It would be considered to be a pretty steep hill for driving.

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2 years ago
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