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Anna007 [38]
3 years ago
8

Find f(2) and f(a+h) when f(x)=3x^2+2x+4

Mathematics
1 answer:
wolverine [178]3 years ago
4 0
F(2) = 3(2)^2 + 2(2) + 4

= 3(4) + 4 + 4

= 12 + 8

f(2) = 20

f(a+h) = 3(a+h)^2 + 2(a+h) + 4

= 3(a^2 + 2ah + h^2) + 2a + 2h + 4

f(a+h) = 3a^2 + 6ah + 3h^2 + 2a + 2h + 4
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A passenger rode the subway 2 blocks west and then 10 south. If all the blocks are the same length what is the value of the slop
Nimfa-mama [501]

Answer:

The slope of the line is 5

Step-by-step explanation:

Great question, it is always good to ask away and get rid of any doubts that you may be having.

I have created an illustration which is attached below in order to help you understand the situation. As we are told the passenger rode the subway from point (0 , 0) to point (-2, 0). Then he rode the subway from point (-2, 0) to the final destination of point (-2 , -10). In order to find the value of the slope we need to use the slope formula which is

Slope = \frac{y_{2}-y_{1} }{x_{2}- x_{1} }

Now we just plug in the values of the starting point and final destination in order to find the slope of the line.

Slope = \frac{(-10) - (0)}{(-2)-(0)}

Slope = \frac{-10}{-2}

Slope =5

Finally we can see that the slope of the line is 5

I hope this answered your question. If you have any more questions feel free to ask away at Brainly.

6 0
3 years ago
A student is saving money to buy a video game. The student currently has $20 and plans to save $10 every month. Write a function
4vir4ik [10]

Answer:

y = amount saved in dollars

x = months

Since the student already has $20 dollars saved (20) and plans to save $10 per month (10x), the equation so far is y = 20 + 10x.

You can use this to solve questions based of the equation/situation by filling in any numbers you are given where the variables are.

Hope this helps! :)

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Someone help me please
gogolik [260]

x/5 = 6/15
15x = 30
    x = 2

answer
x = 2 ft

y/10 = 6/15
15y = 60
y = 4

answer
y = 4 ft


3 0
3 years ago
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Explain how to find the sum of 3/10 + 4/100
Neporo4naja [7]

Answer: 17/50

Step-by-step explanation:

First, to add fractions, we must find a common denominator, in this case, 100.

Then, we must make the fractions being added all have the common denominator.

So, we must multiply 3/10 * 10/10, which equals 30/100

30/100 + 4/100

Then, just add across the numerator to get 34/100, which can be simplified to 17/50

6 0
3 years ago
Read 2 more answers
Solve this answer<br> 5/3 + 2/5
salantis [7]
5/3+2/5=25/15+6/15=31/15=2 1/15

2 1/15 or 31/15

5 0
3 years ago
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