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Helen [10]
3 years ago
12

What is velocity, because it describes both speed and direction

Mathematics
1 answer:
eimsori [14]3 years ago
3 0

Answer:

A vector ⇒ answer D

Step-by-step explanation:

* Lets revise some definition to solve the problem

- <em>Speed = distance ÷ time</em>

∵ Distance has no direction

∴ Speed has no direction

∴ Speed is a scalar quantity ⇒ (magnitude only)

- <em>Velocity = displacement ÷ time</em>

∵ Displacement has direction

∴ Velocity has direction

∴ Velocity has magnitude and direction

∵ Any vector has magnitude and direction

∴ Velocity is a vector quantity

∵ Velocity describes both speed (magnitude) and direction

∴ Velocity is a vector

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What is 4 (5×1÷20) because I dont know lol
Whitepunk [10]
Well first we need to do whatever is in the parentheses, which in this case is: (5x1/20)

Following the order of operations (PEMDAS) we start with the multiplication, which is (5x1). We know that 5x1=5, so now we can move on to the division:

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So now that we know the answer to the equation in the parentheses is 0.25, we can solve the whole equation.

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4 0
4 years ago
Triangle LMN similar to triangle OPQ find the measure of side PQ round your answer to the nearest 10th if necessary
sergejj [24]

*see attachement for the triangles given

Answer:

PQ = 6.8

Step-by-step explanation:

Corresponding sides of similar shapes or figures are proportional to each other. Since ∆LMN ~ ∆OPQ, the ratio of their corresponding sides would therefore be equal. Thus:

LN/OQ = MN/PQ

LN = 5

OQ = 17

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PQ = ?

Plug in the values

5/17 = 2/PQ

Cross multiply

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8 0
3 years ago
What is the value of y?
lord [1]

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15

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