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3 years ago

F(x)=4x2+1 and g(x)=x2-5, find (f-g)(x)

Mathematics

1 answer:

seraphim [82]3 years ago

3 0

Answer and explanation:

(f - g)(x) = $(4x^{2} + 1) - (x^{2} - 5)$

Add/subtract like terms

$3x^{2} + 6$

$(f-g)(x) = 3x^{2} + 6$

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Anna35 [415]

Step-by-step explanation:

in such a case, where we have all the sides and need angles, the best tool is the extended Pythagoras (for general triangles and not just for right-angled ones) :

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c is the side opposite of angle C.

the side opposite of B is CA.

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3 years ago

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Zepler [3.9K]

Answer:

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Step-by-step explanation:

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3 years ago

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4 years ago

Read 2 more answers

A car travels 2 1/3 miles in 3 1/2 minutes at a constant speed. Write an equation to represent the car travels in miles and minu

Korvikt [17]

Answer:

d = 0.666t , where d is in miles and t is in minutes.

d = 39.94h, where d is in miles and h is in hours.

Step-by-step explanation:

A car travels $2\frac{1}{3} = 2.33$ miles in $3\frac{1}{2} = 3.5$ minutes at a constant speed.

Let the relation between the distance (d) traveled by car in miles after traveling t minutes is d = kt ......... (1)

Now, putting d = 2.33 miles and t = 3.5 minutes in the above equation we get,

2.33 = 3.5k

⇒ k = 0.666 (Approx.)

So, the equation (1) becomes d = 0.666t. (Answer)

Let us assume that the relation between the distance (D) traveled by car in miles after traveling h hours is d = Kh ............ (2)

Now, putting D = 2.33 miles and T = 3.5/60 = 0.058 hours in the above equation, we get

2.33 = 0.058K

⇒ K = 39.94

So, the equation (2) we get, d = 39.94h (Answer)

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3 years ago