We want to make x^2-3x into a perfect square trinomial. An example of such a trinomial is x^2 + 6x + 9, which is equivalent to the square of (x+3).
From x^2-3x we see that the coefficient of x is -3. Divide this coefficient, -3, by 2, obtaining -3/2. Now square this result: square -3/2. Result: 9/4.
Adding 9/4 to x^2-3x makes x^2-3x into a perfect square trinomial.
Answer:
38/z
Step-by-step explanation:
Key skills: Fractions, Division, Variables
1) 38 is being divided by a variable known as z.
2) 38 being divided by z would be the same as <u><em>38/z</em></u>
Have a nice day! Hope you understood!
Hello!
Answer:
Step-by-step explanation:
Distributive property: a(b+c)=ab+ac
<em>First, you switch sides. *Group like terms*</em>
<em>Then, you add the similar to elements. You can also add the numbers from left to right.</em>
, is the correct answer.
Hope this helps!
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Answer:
C. 800 miles per 16 hours
Step-by-step explanation:
600 ÷ 15 = 40
1500 ÷ 50 = 30
800 ÷ 16 = 50
900 ÷ 20 = 45
40 > 30 < 50 > 45
Answer:
Step-by-step explanation:
Given
Required
Express in terms of 
and 
Express 21 as 7 * 3
Apply law of logarithm
. So, we have:
Rewrite:
