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Masja [62]
3 years ago
12

What is the value of the function f(x) = 2x2 + 3 when x = 2? 7 19 11 –1

Mathematics
2 answers:
gogolik [260]3 years ago
4 0
11 because 2*(2^2)+3 = 2*4+3 = 8+3 = 11
blondinia [14]3 years ago
3 0
Plug in 2 for your x, you'll get 2(2^2)+3, which becomes 2(4)+3, 8+3, 11. 
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What is the answer to this question
Lesechka [4]

Remark

There's a lot you don't know here. Are DE and GF parallel? Is B a right angle? You can't assume that it is. The safest way to proceed is to give x in terms of 58 and B. You might get an answer that gives you something like 32 but I don't think you can say that unless you are told somewhere that ABC is a right angle triangle with the right angle at B.

So what to do.

<BAC = 58o                               That's because <BAC = <IAK They vertically opposite.

<ABC + <BAC + <ACB = 180o       All triangles have 180o

<ACB = 180 - 58 - <ABC                Solve for an unknown angle of a triangle.

<ACB = 122 - <ABC

x = <ACB                                       Vertically opposite angles.

x = 122 - <ABC                             Answer  It's 32 if ABC is a right angle.  

6 0
3 years ago
1/2 - [-1/4+2/3] how do you solve this value of the expression
Shkiper50 [21]

Answer:

1/12

Step-by-step explanation:

1/2-[-1/4+2/3]

1/2-[-3/12+8/12]

1/2-[5/12]

1/2-5/12

6/12-5/12

1/12

3 0
3 years ago
Megan rolls a ball down a ramp until the ball hits the wall.
Rus_ich [418]
Cool the answer is y because she spend that
7 0
2 years ago
Which of the following is the solution of –6x – 17 = 19?
natita [175]

   -6x - 36  =   -6 • (x + 6) 

                   x = -6
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6 0
2 years ago
Read 2 more answers
Use a map to plan a trip in the United States.Find the number of miles between your current location and your destination, and d
ElenaW [278]

Answer:

292.5 miles per day

Step-by-step explanation:

The map shows it is 1170 miles from my school to Wall, South Dakota, a place well-advertised in the Midwest. If I want to take 4 days to get there, the required division is ...

... (1170 mi)/(4 da) = 292.5 mi/da

6 0
3 years ago
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