All categories

3 years ago

Which value must be added to the expression x2 – 3x to make it a perfect-square trinomial?

Mathematics

1 answer:

Vitek1552 [10]3 years ago

7 0

Answer:

$\frac{9}{4}$

Step-by-step explanation:

Given

x² - 3x

To make the expression a perfect square

add ( half the coefficient of the x- term )²

x² + 2( - $\frac{3}{2}$ )x + $\frac{9}{4}$ , thus

x² - 3x + $\frac{9}{4}$

= (x - $\frac{3}{2}$ )² ← a perfect square

You might be interested in

2/5 g+3h -6 when g=10 h=6

motikmotik

<h3>hello!</h3>

let's evaluate this expression

$\pmb{\displaystyle\frac{2}{5}g+3h-6 }$

$\pmb{\displaystyle\frac{2}{5} *10+3(6)-6}$

$\pmb{\displaystyle\frac{2}{5} *10+18-6}$

$\pmb{\displaystyle\frac{2}{5} *10+12}$

Multiply:

$\pmb{\displaystyle\frac{2}{5} *\frac{10}{1} =\frac{20}{5} =4}$

Final Step:-

$\pmb{4+12}$

$\pmb{16}$

======================================================

Hope everything is clear; if you need any explanation/clarification, kindly let me know, and I'll comment and/or edit my answer :)

5 0

2 years ago

= 272 and

BlackZzzverrR [31]

D) attached is a picture, I would’ve typed it out but I can’t use the square root symbol

5 0

3 years ago

pls help! :) it’s my first day knowing about this things, i don’t even think we had a lesson on it— anywayysss

podryga [215]

Answer:

acute and equilateral

Step-by-step explanation:

because all the angles are given equal

3 0

3 years ago

Read 2 more answers

Identify the percent rate of change in exponential function y=(0.9)

Papessa [141]

Answer:

Step-by-step explanation:

0.9 multiplied by 100 to turn it into a percentage is 90.

5 0

2 years ago

Read 2 more answers

Find the median and mean of the data set below:

EastWind [94]

Answer:

2 11 33 41 44 49

Step-by-step explanation:

33+41=74 74÷2=37

7 0

3 years ago

Read 2 more answers