2 years ago

Simplify fully x^2-9/3x^2+8x-3

Mathematics

2 answers:

mestny [16]2 years ago

6 0

Answer is -2x^2+8x-3

77julia77 [94]2 years ago

5 0

-2x^2+8x-3
....................

You might be interested in

How can you determine whether a sum of numbers, such as 127 + 38, is

N76 [4]

Answer:

Even + Even = Even

Odd + Odd = Even

Even + Odd = Odd

8 0

2 years ago

Does anyone know this and if it is extraneous or not?

Anna11 [10]

Addd 4 to both sides
$\sqrt{x+9}=5$
sqare both sides
x+9=25
minus 9 both sides
x=16

plug it in for x and see
$\sqrt{16+9}-4=1$
$\sqrt{25}-4=1$
$5-4=1$
1=1
true

not extraneous
an extraneous root would be x=-34

5 0

2 years ago

Which values have exactly 2 significant figures? Check all that apply.

JulijaS [17]

ANSWER

Options B, C and D have exactly 2 significant figures.

<u>EXPLANATION</u>

To see whether the numbers have exactly 2 significant figures, round all to 2 significant figures. The ones that remains the same have exactly 2 significant figures.

$302\approx 300$ yards to 2.s.f