3 years ago

Does this graph below represent a function? (Yes or no)

Mathematics

1 answer:

Whitepunk [10]3 years ago

4 0

Answer:yes

Step-by-step explanation: it represents a function

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Evaluate \dfrac{e}{4}+2f-3

Igoryamba

Answer:

The value of given expression is 1.

Step-by-step explanation:

Consider the given expression is

$\dfrac{e}{4}+2f-3$

When e=12 and $f=\dfrac{1}{2}$ .

Substitute e=12 and $f=\dfrac{1}{2}$ in the given expression.

$\dfrac{12}{4}+2(\dfrac{1}{2})-3$

On simplification we get

$3+1-3$

$1$

Therefore, the value of given expression is 1.

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A lamp post 15 feet high casts a shadow

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Here you go! I decided to write it down for you. Sorry for the bad handwriting! :)

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The diagonal of a TV is 26 inches long. Assuming that this diagonal forms a pair of 30-60-90 right triangles, what are the exact

Tema [17]

Hello,
let's assume a the width, b the heigth.

sin 30°=a/26=1/2==>a=26/2=13 (in)
cos 30°=b/26=√3/2==>b=26*√3 / 2=13√3≈22.51666.... (in)

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3 years ago

What is the measure of AC?

Jlenok [28]

Answer:

5 blocks

Step-by-step explanation:

Since the triangle is right use Pythagoras' identity to solve for AC

The square on the hypotenuse is equal to the sum of the squares on the other 2 sides, that is

AC² = AB² + BC² ← substitute values

AC² = 3² + 4² = 9 + 16 = 25 ( take the square root of both sides )

AC = $\sqrt{25}$ = 5

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57/100 of students did not recieve an A

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