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Leno4ka [110]
3 years ago
11

If f(x)=x^2 +5 and g(x)=5x+4, what is the [fg](6)

Mathematics
1 answer:
Nuetrik [128]3 years ago
3 0

f + g)(x) = f (x) + g(x)


= [3x + 2] + [4 – 5x]


= 3x + 2 + 4 – 5x


= 3x – 5x + 2 + 4


= –2x + 6

(f – g)(x) = f (x) – g(x)


= [3x + 2] – [4 – 5x]


= 3x + 2 – 4 + 5x


= 3x + 5x + 2 – 4


= 8x – 2

(f  × g)(x) = [f (x)][g(x)]


= (3x + 2)(4 – 5x)


= 12x + 8 – 15x2 – 10x


= –15x2 + 2x + 8

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(4x 2 − 2x + 10) + (−2x 2 + 4x − 2)
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Answer:

2x²+2x+8

Step-by-step explanation:

4x²-2x+10-2x²+4x-2

=4x²-2x²-2x+4x+10-2

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6 0
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Answer:

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Step-by-step explanation:

x² - 5x = 14

x² - 5x - 14 = 0

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4 0
3 years ago
Tell whether (1,6) is a solution of y = x + 7
andrezito [222]

Answer:

no it is not a solution.READ THE WHOLE EXPLANATION! IT WILL HELP WITH THE OTHER PROBLEMS!!!!

Step-by-step explanation:

when something like (1,6) is written consider it as (x,y). in this case, 1 is considered as x, and 6 is considered as y. if you substitute these number for x and x and y, (x =1 and y =6), you'll see that the equation will go from y=x +7, to 6=1+7. Which is not true.

5 0
3 years ago
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9. Mr. Paul pays the parking bill before tax at a cost of $33.20. The parking tax rate is 2%. Mr. Paul decides to leave a 5% tip
ale4655 [162]

Answer:

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Step-by-step explanation:

3 0
3 years ago
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LekaFEV [45]

Function: 50x=8000 (maximum number of packages: 160)

Step-by-step explanation:

In this problem, we have:

C=8 ton = 8000 kg is the capacity of the truck (the amount of mass that can be stored in the truck)

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We can find the number of packages that can be transported as follows: calling this number x, the total mass of x packages is

p\cdot x

This amount should be at most equal to the capacity of the truck, therefore:

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And substituting the numbers,

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And solving the equation, we can found the number of packages that can fit into the truck:

x=\frac{8000}{50}=160

Learn more about equations:

brainly.com/question/11306893

brainly.com/question/10387593

#LearnwithBrainly

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