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3 years ago

What is the value of the function when x=5 f(x) = x-5

Mathematics

2 answers:

Vanyuwa [196]3 years ago

6 0

Answer:

When x=5, f(x)=0

Step-by-step explanation:

$f(x)=x-5\\\\f(5)=5-5\\\\f(5)=0$

Therefore, when x=5, f(x)=0

Vika [28.1K]3 years ago

5 0

Answer:

f(x) = 0

Step-by-step explanation:

given that x = 5

f(x) = x - 5 .......replace x with 5

→ 5 - 5

→ 0

You might be interested in

Factor completely 3x^4 - 3x ^3 - 18x ^2. Which of the following is one of the factors?

Otrada [13]

Answer:

$3x^4 - 3x ^3 - 18x ^2=3x^2(x+2)(x-3).$

Step-by-step explanation:

The expression $3x^4 - 3x ^3 - 18x ^2$ consists of three terms:

$3x^4;$
$-3x^3;$
$-18x^2.$

These three terms have common factor $3x^2.$ Thus,

$3x^4 - 3x ^3 - 18x ^2=3x^2(x^2-x-6).$

Consider the expression $x^2-x-6.$ You can rewrite it as

$x^2-x-6=x^2+2x-3x-6=x(x+2)-3(x+2)=(x+2)(x-3).$

The whole expression takes look

$3x^4 - 3x ^3 - 18x ^2=3x^2(x+2)(x-3).$

7 0

3 years ago

Isaac's dad built a shelf for his video games that is 42inches wide. Each video game is 6/8inches wide. How many video games can

elena-14-01-66 [18.8K]

Answer:

Step-by-step explanation:

to find the answer, divide 42 by 6/8

42 x 8/6 = 56

8 0

4 years ago

Complete the square to make a perfect square trinomial. Then, write the result as a binomial squared. x2+3/2x

denis23 [38]

Answer:

The added term needed for that expression to be a square is 9/16.

Step-by-step explanation:

We're provided with two terms, and asked to add an additional term to make this a perfect square. For this to work, the term needs to be a scalar value that is the square of half the coefficient of the second term.

That coefficient is 3/2, so half of that is 3/4, and its square is 9/16.

If we tack that on the end then, we get:

$x^2 + \frac{3x}{2} + \frac{9}{16}\\=(x + \frac{3}{4})^2$

To confirm the answer, let's expand it and see if we get the original expression:

$(x + \frac{3}{4})^2\\= (x + \frac{3}{4})(x + \frac{3}{4})\\= x^1 + \frac{3x}{4} + \frac{3x}{4} + \frac{9}{16}\\= x^2 + \frac{6x}{4} + \frac{9}{16}\\=x^2 + \frac{3x}{2} + \frac{9}{16}$

So 9/16ths is the scalar that needs to be added on the end.

4 0

3 years ago

4(-5z+2)+(-6) plz help

neonofarm [45]

Answer

2(-10z+1) or 20z+2

Step-by-step explanation:

if you are factoring the expression then its 2(-10z+1)

if you are simplifying the expression then its 20z+2

5 0

3 years ago

Read 2 more answers

3x+30+x=10+2x+5x+2 <br> i need help fast

kupik [55]

Answer:

x=6

Step-by-step explanation:

Group Like Terms:

3x+x+30=10+2x+5x+2

Add similar elements 3x+x=4x:

4x+30=10+2x+5x+2

Add similar elements 2x+5x=7x:

4x+30=10+7x+2

Group like terms:

4x+30=7x+10+2

Add the numbers 10+2=12:

4x+30=7x+12

Subtract 30 from both sides:

4x+30-30=7x+12-30

Simplify:

4x=7x-18

Subtract 7x from both sides:

4x-7x=7x-18-7x

Simplify:

-3x=-18

Divide both sides by -3:

$\frac{-3x}{-3} =\frac{-18}{-3}$

Simplify:

x=6

Hence, the correct answer is 6

4 0

3 years ago