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4 years ago

If f (x) = 2x2 - 4x, what is the value of f(3)

Mathematics

2 answers:

poizon [28]4 years ago

6 0

Answer:

f(3) = 6

Step-by-step explanation:

f(3) = 2(3)^2 - 4(3)

f(3) = 6

Ira Lisetskai [31]4 years ago

4 0

Answer:

Step-by-step explanation:

2(3)^2-4(3)=6

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The angle measures associated with which set of ordered pairs share the same reference angle? (Negative StartFraction StartRoot

Katarina [22]

Answer:

$(C)\left(-\dfrac{1 }{2},-\dfrac{\sqrt{3} }{2} \right)$ and \left(\dfrac{1 }{2},\dfrac{\sqrt{3} }{2} \right)$

Step-by-step explanation:

The reference angle is the angle that the given angle makes with the x-axis.

For an ordered pair to share the same reference angle, the x and y coordinates must be the same or a factor of each other.

From the given options:

$(A)\left(-\dfrac{\sqrt{3} }{2} ,-\dfrac{1 }{2}\right)$ and \left(-\dfrac{1 }{2},-\dfrac{\sqrt{3} }{2} \right)\\\\(B)\left(\dfrac{1 }{2},-\dfrac{\sqrt{3} }{2} \right)$ and \left(-\dfrac{\sqrt{3} }{2}, \dfrac{1 }{2}\right)\\\\(C)\left(-\dfrac{1 }{2},-\dfrac{\sqrt{3} }{2} \right)$ and \left(\dfrac{1 }{2},\dfrac{\sqrt{3} }{2} \right)\\\\(D)\left(\dfrac{\sqrt{3} }{2},\dfrac{1 }{2} \right)$ and \left(\dfrac{1 }{2},\dfrac{\sqrt{3} }{2} \right)$

We observe that only the pair in option C has the same x and y coordinate with the second set of points being a negative factor of the first term. Therefore, they have the same reference angle.

5 0

3 years ago

Read 2 more answers

2x+8=y if x=6 then what is the value of y?

Norma-Jean [14]

Answer:

Step-by-step explanation:

If x = 6 the problem should look like this:

2 (x) + 8 = y -> place the 6 where x is.

2 (6) + 8 = y -> remember () means to multiply.

2 times 6 , add 8 , equals y

12 + 8 =y -> 12 +8 equals 20

20 = y

I hope this helps!!

7 0

2 years ago

The expression below in standard form.<br> 3h - 2(1 + 4h)

fgiga [73]

Answer:

I assume by standard you mean simplified. Anyways, the answer is -5h-2.

Step-by-step explanation:

3h-2(1+4h)

Solve inside the parenthesis.

3h-2+(-8h)

Simplify.

-5h-2

4 0

4 years ago

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what is 3 -7 then minus 7366 then minus 0285676 then minus 0 plus 0 then minus 656282 the minus 0mc 0 what is it you are meanoes

aivan3 [116]

Answer:

-949328 ^^

Step-by-step explanation:

Here's the answer to your idi..otic question UwU, thanks for the points!!! be seeing you soon budd!!!!

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3 years ago

Three more than a number is less than twice the number

Hoochie [10]

X + 3 < 2x
3<2x-x
3 < x

x is greater than 3

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3 years ago

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