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3 years ago

Suppose we have two functions: f(x)=x2+1 and g(x) = 3x +5. Find the value of f(-1)g(-1).

Mathematics

2 answers:

lisabon 2012 [21]3 years ago

4 0

Answer:

-1 x 2 = -2

Step-by-step explanation:

f(-1)=-1 x 2+1 = -1

-1 x 2 = -2

-2 + 1 = -1

g(-1) = 3 x -1 +5 = 2

3 x -1 + -3

-3 + 5 = 2

aliya0001 [1]3 years ago

4 0

-1 and 2 sorry i’m a little late!

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Answer:

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Step-by-step explanation:

We are given the following in the question:

The completion of a chemical reaction is expressed by the equation

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where y is the number of seconds needed to complete the reaction and x is the temperature in degrees Celsius at which the reaction occurs.

We have to find the temperature at which the reaction occurs, if the completion time of reaction is 160 seconds.

Putting y = 160

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Eva8 [605]

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Let the required first number and second numbers be x and y respectively .

We have given that, one Number is more than other by 11

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x - y = 11. …..(1)

And twice the sum of the two numbers is 6 i.e.,

2(x + y) = 6 => 2x + 2y = 6 => x +y = 3 …….(2)

Now , equation (1) and (2) are linear equation with two variables x and y .

We shall solve above two equations and find out the value of two variables. Using Elimination method , In which value of one variable is find out by eliminate the second variable through their coefficient comparison.

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To learn more about linear equation, refer:

brainly.com/question/21243732

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