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4 years ago

F(x) = x2 + 3 f(5) = 13 True False

Mathematics

1 answer:

True [87]4 years ago

3 0

Answer:

f(5) does not equal 13.

Step-by-step explanation:

When we are given a function f(x), we can substitute any value for x as long as we change that value in the equation as well.

Therefore, if we are given f(5), we changed the x. Therefore, we also change the x in the rest of the equation. This would leave us with f(5) = 5² + 3. Now, we can just simplify.

f(5) = 5² + 3

f(5) = 25 + 3

f(5) = 28

Because we are asked to find if f(5) is equal to 13, we can see that 28 is definitely not equal to 13 and determine that this statement is false.

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g100num [7]

Answer:

For this case, we have the following equation (according to the comments):

First, we factor the quadratic expression in the denominator:

Then, we multiply both sides of the equation by (a-2) (a + 2):

Later, canceling similar terms we have:

We do distributive property on the left side of the equation:

By grouping variables and constant terms we have:

Rewriting we have:

Finally, by clearing "a" we have:

Note: the value of a is a extraneous solution because it makes the denominator of the original equation equal to zero.

Answer:

the student correct, but the value of a= -2 is an extraneous solution

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3 years ago

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N + 3m; use m = 3, and n = 1

musickatia [10]

Answer:

Step-by-step explanation:

plug 3 into m and plug 1 into n
order of operations say you multiple first so you multiple 3 times 3 which equals 9
then you add 1 and 9 which equals 10

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3 years ago

PLEASE HELP ME 50 POINTS!!!!<br><br> Identify an expression that is equivalent to 0.3(15y).

IgorC [24]

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Step-by-step explanation: You have To Multiply 15 times 0.3 and you get 4.5y

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3 years ago

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The figure shows a kite inside a rectangle. Which expression represents the area of the shaded region? 2x2 4x2 6x2 8x2

Savatey [412]

The picture in the attached figure

we know that
area of the <span>the shaded region=area of rectangle -area of a kite

area of rectangle=(3x+x)*(x+x)----> 4x*2x---> 8x</span>²

area of a kite=(1/2)*[d1*d2]
where d1 and d2 are the diagonals
d1=4x
d2=2x
so
area of a kite=(1/2)*[4x*2x]----> 4x²

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the answer is
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3 years ago

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mixas84 [53]

Answer:

540 dollars :D

Step-by-step explanation:

12 times 45 equals 540

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3 years ago

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