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2 years ago

(True or False) The set of ordered pairs {(6,4),(2,-5),(-2,4),(6,-4)} is a function

Mathematics

1 answer:

const2013 [10]2 years ago

6 0

Answer:

False

Step-by-step explanation:

The same function input (the first number in the pair) cannot have two different outputs (the second number in the pair).

(6, 4) 4 is one output.

(6, -4) -4 is another output.

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70,000 ones equal how many thousands?

Murrr4er [49]

70,000 ones is equal to 70,000/1000 thousands

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tatiyna

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2 years ago

86[]×[]=2325

forsale [732]

Answer:

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Step-by-step explanation:

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3 years ago

Each figure below is a regular polygon and has a radii and apothem shown. Find the measure of each numbered angle

KIM [24]

What he said is ok!!!

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3 years ago

Find x<br> a) 21 √2<br> b)7<br> c)21 √2/2<br> d)21 √3/2

fgiga [73]

Answer:

Step-by-step explanation:

Use the sine ratio in the left, right triangle to find the common side to both triangles and the exact values

sin60° = $\frac{\sqrt{3} }{2}$ , cos45° = $\frac{1}{\sqrt{2} }$ , thus

sin60° = $\frac{opposite}{hypotenuse}$ = $\frac{opp}{7\sqrt{3} }$ = $\frac{\sqrt{3} }{2}$ ( cross- multiply )

2 × opp = 21 ( divide both sides by 2 )

opp = $\frac{21}{2}$

Now consider the right triangle on the right, using the cosine ratio

cos45° = $\frac{adjacent}{hypotenuse}$ = $\frac{\frac{21}{2} }{x}$ = $\frac{1}{\sqrt{2} }$ ( cross- multiply )

x = $\frac{21}{2}$ × $\sqrt{2}$ = $\frac{21\sqrt{2} }{2}$ → C

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2 years ago