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erica [24]
3 years ago
6

Multiply the binomials: (W - 9) · (W + 3) Enter the correct answer.

Mathematics
1 answer:
olasank [31]3 years ago
8 0

Answer:

w2-6w-27

Step-by-step explanation:

FOIL

First

Outer

Inner

Last

This is the theorem that I use, so to expand, you multiply the first number in the equation so it would be w times w because in (w-9) and (w+3) w is the first term. So now you do the outer number which is the first and last number in the equation which is w and 3 and we multiply them together. now we do the inner, which are the two inner terms, which are -9 and w and we multiply them. Now we do the last terms in each ( ) which is -9 and 3 and we multiply them. This is kinda hard to get used to, but it helps so much when you are trying to expand trinomials that are multiplied together!

so we add all the answers we got for first, outer, inner and last numbers

w*w+w*3+-9*w+-9*3

w2+3w-9w-27

w2-6w-27

Hope that helps :)

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12 is what percentage of 80
PIT_PIT [208]

Answer:  " 15 % " .

_______________________________

     →   " 12 is <u>  15% </u> of 80 " .

_______________________________

Step-by-step explanation:

_______________________________

12 = (n/100) * 80 ;

12 = (80n) /100 ;  Solve for "n:

Note:  80/100 = (80/10) / (100/10) = (8/10) = 0.8  ;

12 = (0.8)n  ;

↔ (0.8n) = 12

Multiply each side of the equation by "10" ; to get rid of the "decimal" ;

 10 * (0.8n) = 10 * 12 ;

to get:

_______________________________

8n = 120 ;

Divide each side of the equation by "8" ;

to isolate "n" on ONE SIDE of the equation; & to solve for "n" ;

8n/8 = 120/ 8 ;

_______________________________

to get:

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n = 15 .

_______________________________

Answer:  " 15 % " .

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     →   " 12 is <u>  15% </u> of 80 " .

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Hope this helps!

Best wishes!

_______________________________

4 0
3 years ago
3 - x/2 = 6 (Solve each equation) Check your answer
Yanka [14]
Answer to question
3-x/2=6
Subtract 3 from both sides
-x/2=3
Multiply 3 by -2
Final Answer: x=-6

Work check
3-x/2=6
Substitute -6 for x since you solved for x in the last equation
3-(-6)/2
Convert 3-(-6/2) to 3+6/2
3+6/2
Divide 6 by 2
3+3
Add
Final Answer: 6 (This 6 is the same 6 we used to solve for x in the first equation).
6 0
3 years ago
A.Write a polynomial to find the volume of the
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Answer:

hmmm 38

Step-by-step explanation:

?

3 0
2 years ago
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200,000 thousand is the answer kid.
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3 years ago
4{[5 (x-3)+2]-3 [2 (x+5)-9]}
Over [174]
Pemdas
parenthasees exponents mult/division additon/subtraction

parethenasees
x-3 and x+5 we can't do anything with so next
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the answer is -4x-64
6 0
3 years ago
Read 2 more answers
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