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sleet_krkn [62]
3 years ago
12

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

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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:

  1. 3x^4;
  2. -3x^3;
  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:

56

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
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