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3 years ago

PLS I NEED ASAP I WILL GIVE BRAINLIEST AND 30+ POINTS

Mathematics

1 answer:

Nadya [2.5K]3 years ago

7 0

Question:

The diagram below shows the graph of a proportional relationship. The plotted point is (6,9) .

What is the unit rate of this graph? Be sure to simplify your answer.

Answer:

The unit rate of this graph is 1.5

Explanation:

The graph shows a proportional relationship and the plotted point is (6,9).

The unit rate of the graph can be determined by the formula,

$\frac{y_{2}-y_{1}}{x_{2}-x_{1}}=m$

Thus, from the graph, the coordinates are (0,0) and (6,9)

Substituting the coordinates in the formula, we have,

$\frac{6-0}{9-0} =m$

Subtracting, we get,

$m=\frac{6}{9} =1.5$

Thus, the unit rate of the graph is 1.5

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Mrrafil [7]

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3 years ago

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Serhud [2]

Answer:

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Step-by-step explanation:

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3. Substitute p in the first equation to 3m since p=3m as defined.

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3 years ago

What are the exact values of sin(2π3radians) and cos(2π3radians)

topjm [15]

We know that
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we know that
sin (A+B)=sin A*cos B+cos A*sin B
so
sin (90°+30°)=sin 90*cos 30+cos 90*sin 30
sin 90=1
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cos 90=0
sin 30=1/2
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the answer part a) is
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cos (A+B)=cos A*cos B-sin A*sin B
so
cos (90°+30°)=cos 90*cos 30-sin 90*sin 30
sin 90=1
cos 30=√3/2
cos 90=0
sin 30=1/2
cos (90°+30°)=0*√3/2-1*1/2----> -1/2

the answer part b) is
cos (2π/3)=-1/2

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