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3 years ago

5

Find the greatest common factor (GCF) for 72, 36, and 24.

1 answer:

hichkok12 [17]3 years ago

3 0

12

Working;
12 is a common factor for all the terms.

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What is the zero in the quadratic function f(x)= 9x^2-54x-19?

Alex17521 [72]

Answer:

6.33... and 0.333...

Step-by-step explanation:

The quadratic formula is

$x=\frac{-b+\sqrt{b^2-4ac} }{2a}$ .

It is important because while some quadratics are factorable and can be solved not all are. The formula will solve all quadratic equations and can also give both real and imaginary solutions. Using the formula will require less work than finding the factors if factorable. We will substitute a=9, b=-54 and c=-19.

$x=\frac{-b+/-\sqrt{b^2-4ac} }{2a}\\x=\frac{-(-54)+/-\sqrt{(-54)^2-4(9)(-19)} }{2(9)}\\x=\frac{54+/-\sqrt{2916+684} }{18}$

We will now solve for the plus and the minus.

The plus,,,

$x=\frac{54+\sqrt{3600}}{18}\\x=\frac{54+60}{18}\\x=\frac{114}{18}\\x=6.3$

and the minus...

$x=\frac{54-\sqrt{3600}}{18}\\x=\frac{54-60}{18}\\x=\frac{-6}{18}\\x=-0.333...$

8 0

4 years ago

What's the measure of m∠JKL?

AleksandrR [38]

Answer:

sorry, I think yr question is incomplete.

3 0

3 years ago

What type a problem can be. Using the greatest common factor

sergeinik [125]

The word greatest in a word problem tells you to do GCF and the word least in a problem means to use the LCM

6 0

3 years ago

4 + 6x + 5 = 7x Could someone help me? Thanks :) And could you also show how u did it

matrenka [14]

Answer:

x=9

Step-by-step explanation:

combine like terms

$4+6x+5=7x$

4+5=9

9+6x=7x

to get 6x with 7x subtract 6x from both sides as its positive

6x-6x=0

7x-6x=x

9=x

x=9

4 0

3 years ago

-1/3d + 4/5 = 3/4<br> solve for the variable.

Gnesinka [82]

Answer: x equals 12

Step-by-step explanation:

hope this helped

4 0

3 years ago

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