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3 years ago

Select the correct answer.

Mathematics

2 answers:

andrew-mc [135]3 years ago

5 0

Answer:

C. $\displaystyle (-2, 32)\:and\:(2, -32)$

Step-by-step explanation:

The best way to put this is that the integer signs MUST be interchanged.

I am joyous to assist you anytime.

vekshin13 years ago

3 0

Answer:

Step-by-step explanation:

Googling this, we find that when -f(x) = f(-x), our function is odd. This means that when we multiply our input by -1, our output will multiply by -1 as well.

A is incorrect because when we multiply our input (-1) by -1, our output does not change

B is incorrect because it isn't even a function -- there are multiple outputs for the input

C is correct because when we multiply the input by -1 (as -2 goes to 2), the output multiplies by -1 (32 goes to -32)

D is incorrect because when we multiply the input by -1, the output stays the same. This is an example of an even function.

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Find f(-2) for the function f(x)=5x+14

Stels [109]

Answer:

f(-2)=(-11)

Step-by-step explanation:

f(-2)=5(-5)+14

=(-25)+14

=(-11)

6 0

3 years ago

9. If f(x) = 5x-4 and f(2a) =156 , then what is the value of a?

solmaris [256]

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$f(x) = 5x - 4$

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$f(2a) = 5(2a) - 4$

$f(2a) = 10a - 4$

$156 = 10a - 4$

$10a - 4 = 156$

Add sides 4

$10a - 4 + 4 = 156 + 4$

$10a = 160$

Divide sides by 10

$\frac{10a}{10} = \frac{160}{10} \\$

$a = 16$

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3 years ago

A submarine is diving to a total depth of 45 feet. It descends 15% of the total depth in 1 minute. How deep will the submarine b

telo118 [61]

after 4 mins the sub reaches 27 feet

8 0

3 years ago

Maricella solves for x in the equation 4x-2(3x-4)+4=-x+3(x+1)+1. She begins by adding –4 + 4 on the left side of the equation an

Elodia [21]

Maricella’s strategy is incorrect as the values added on the left and right side of the equation changes the original equation $4x-2(3x-4)+4=-x+3(x+1)+1$ to $4x-2(3x-4)+4=-x+3(x+1)+3$ .

Further explanation:

Maricella begin by adding $-4+4$ on the left side of the equation and $1+1$ on the right side of the equation $4x-2(3x-4)+4=-x+3(x+1)+1$ .

The value added on the left is equal to zero so it does not change the equation but the value added on the right is 2, a non-zero digit so it changes the equation as shown below.

$4x-2(3x-4)+4-4+4=-x+3(x+1)+1+1+1\\4x-2(3x-4)+4+0=-x+3(x+1)+1+2\\4x-2(3x-4)+4=-x+3(x+1)+3$

Therefore, the strategy used by Maricella will change the equation and so the solution of the equation will be incorrect.

One way of solving such a linear equation is by adding or subtracting the required value on each side of the equation. and then simplifying the further equation.

Similarly, the other way to solve any linear equation is by separating the variable terms on one side of the equation and constant terms on the other side of the equation.

After this simplify the linear equation to obtain the solution of the equation for $x$ .

Whereas Maricella’s strategy fails to solve the equation $4x-2(3x-4)+4=-x+3(x+1)+1$ since the values added and subtracted in the equation changes the original equation completely.

Learn more:

1. Linear equation application brainly.com/question/2479097

2. To solve one variable linear equation brainly.com/question/1682776

3. Binomial and trinomial expression brainly.com/question/1394854

Answer details

Grade: Middle school

Subject: Mathematics

Chapter: Linear equation

Keywords: equation, linear equation, Maricella, right side, left side, strategy, solve for $x$ , adding, subtracting, variable, constant, solution of the equation, value, original equation, variable terms, constant terms.