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nydimaria [60]
3 years ago
6

If f(x) = 3x + 7, find: f(3) = [ ? ]

Mathematics
2 answers:
jekas [21]3 years ago
7 0

Answer:

f(3) =16

Step-by-step explanation:

f(x) = 3x + 7

Let x= 3

f(3) = 3*3 +7

     = 9+7

      = 16

IrinaK [193]3 years ago
5 0

Answer: 16

Step-by-step explanation: f(x) = 3x + 7 means that if we put an <em>x</em> into our function, a 3x + 7 comes out.

So if we want to find f(3), we're putting a 3 into our function which means that a 3(3) + 7 comes out which simplifies to 9 + 7 or 16.

So f(3) = 16 or the value of the function at 3 equals 16.

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HELP! 20 points!
Olin [163]

The answer is : $36.36

Step-by-step explanation:

The given box is a rectangular box. To find the felt needed to cover the box, we need to find the surface area of the rectangular prism.

Surface area of a rectangular prism = 2(l*w + w*h + h*l), where "l" is the length, "w" is the width and "h" is the height of the rectangular prism.

Given: l = 11 inches; w = 8 inches; and h = 6 inches.

Now plug in these given values in the above formula, we get

Surface area of the rectangular prism = 2 (11* 8 + 8*6 + 6*11)

= 2(88 + 48 + 66)

= 2(202)

= 404

The surface area of the rectangular prism = 404  square inches.

The felt cost 9 cents square inches.

Convert 9 cents to dollar.

9 cents = $0.09

To find the cost of the felt needed to cover prism multiply 404 by 0.09

The total cost = 404*0.09 = $36.36

Hope this helped :)))

5 0
3 years ago
Need help with part a and b
dusya [7]
A would be 35/17
B would be 2, 3/19
8 0
4 years ago
Given the relationship 2x2 + y3 =10, with y &gt; 0 and dy, dt = 3 units/min., find the value of dx, dt at the instant x = 1 unit
Allisa [31]
I believe it is -1/9. 
6 0
3 years ago
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Write the product of the column and row numbers in each space
ira [324]
Is there supposed to be a picture? I can't answer the question.

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3 years ago
HIJK is a trapezoid with H(5, 4), I(10, -2), J(-8, -2), and K(-3, 4). Find the coordinates of the image of H under the translati
olga_2 [115]

Answer:

H'(15, - 7)

Step-by-step explanation:

Given the translation < 10, - 11 >

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H(5, 4) → H'(5 + 10, 4 - 11) → H'(15, - 7)

8 0
4 years ago
Read 2 more answers
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