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amm1812
3 years ago
9

5. A function is given below. f(x) = 3x2 - x + 6 What is f(2)? 2

Mathematics
2 answers:
goldenfox [79]3 years ago
7 0

Answer:   10

Step-by-step explanation:

f(x)= 3 (2) - x + 6

f(x)= 6 - 2 + 6

f(x)=  4 + 6

f(x) = 10

shtirl [24]3 years ago
3 0
Hey someone already answered your question but I need to answer 1 so I can ask another 1 but your answer is 10
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What is the explicit formula for this sequence?
Zarrin [17]

Step-by-step explanation:

The above sequence is a geometric sequence

For an nth term in a geometric sequence

a(n) = a ({r})^{n - 1}

where

n is the number of terms

a is the first term

r is the common ratio

From the question

a = 5

r = 10/5 = 2

Therefore the explicit formula for this sequence is

a(n) = 5( {2})^{n - 1}

Hope this helps you

8 0
3 years ago
The linear function graphed below represents the value of a comic book since Lucy purchased it. What was the value of the comic
zhuklara [117]

Answer:

C. $25

Step-by-step explanation:

We will find,

The slope of the function using \frac{y_{2}-y_{1}}{x_{2}-x_{1}}.

Taking the points (1,40) and (2,55).

Slope = \frac{55-40}{2-1}

i.e. Slope = \frac{15}{1}

i.e. Slope = 15

Substituting the slope and point (1,40) in the equation y=mx+b,

We have, 40=15\times 1+b

i.e. b=40-15

i.e. b= 25

Thus, the equation of the linear function is y=15x+25.

<em>This linear function represents the cost of the comic book since Lucy purchased it, where x= years.</em>

So, the initial value of the comic book is when x= 0.

So, y=15\times 0+25 i.e. y= 25

Hence, the cost of the book when Lucy purchased it was $25.

8 0
3 years ago
Read 2 more answers
What is the solution of 7k+2=4k-10?
LenKa [72]

7k+2=4k-10\ \ \ |-2\\\\7k=4k-12\ \ \ \ |-4k\\\\3k=-12\ \ \ \ |:3\\\\k=-4\\\\check:\\L=7(-4)+2=-28+2=-26\\R=4(-4)-10=-16-10=-26\\L=R

6 0
3 years ago
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lee is making chocolate chip cookies and the recipe calls for 3/4 cup of chocolate chips. if she wants to make 2/3 of the recipe
Marysya12 [62]

<span>
First, (again lol) you multiply the amount of chocolate chips the recipe calls for by the amount Lee wants to make.</span>

<span />so its 3/4 * 2/3

<span> =</span>

<span>6/12</span>

<span>1/2</span>

<span>Lee will need a fraction of 1/2 of a chip of chocolate chips for the recipe</span>

7 0
3 years ago
Read 2 more answers
Please help! I will mark brainliest!
Maurinko [17]

\left(3.5\times 10^{-2}\dfrac{kg}{L}\right)\times\left(2.64\times 10^{20}\,L\right)=(3.5\times 2.64)\times 10^{(-2+20)}\,kg\\\\=\bf{9.24\times 10^{18}\,kg}

_____

Multiply the numbers and add the exponents.

4 0
3 years ago
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