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disa [49]
3 years ago
9

Which represents a quadratic function?

Mathematics
1 answer:
mr Goodwill [35]3 years ago
7 0

Answer:

What are the options for the answer?

Step-by-step explanation:

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Help help help help help help
sammy [17]
Answer:

Explanation:

7. f(x) = x^4 + 3x^3 - 6x^2 - 10x + 8
f(2) = 2^4 + 2^3 - 6^2 - 10(2) + 8
f(2) = 16 + 8 - 12 - 20 + 8
f(2) = 0

8. x^2 - 9 = (x - 3)(x + 3)
x ^2 + x - 6 = (x + 3)(x -2)

Thus, the common factor is x + 3
5 0
2 years ago
Hey here is my question. So if you have 20 legos and your sister has 10 legos how many more legos do you have than her? fr.ee po
just olya [345]

Answer:

I guess the best answer is 10

Step-by-step explanation:

because 20-10 is 10

8 0
2 years ago
Read 2 more answers
What is the value of x to the nearest degree?
Marrrta [24]

Answer:

Step-by-step explanation:

This is right triangle trig.  The side opposite the x is 8, and the side adjacent to the x is 5.  The tangent ratio uses those sides.  We need to find what angle has a tangent of 8/5.  To do this, make sure your calculator is in degree mode.  Then hit "2nd" then tan and you will see tan with a little -1 and a parenthesis.  Enter 8/5 and hit "enter" and you will get an angle measure of 57.9946.  Rounded to the nearest degree this is 58 degrees.  That's your answer!

8 0
3 years ago
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You have 800 square feet of the room reserved for tables
Sav [38]
I hope this helps for question a=16
I hope this helps for question b=12
8 0
3 years ago
Tony buys a washing machine
Lorico [155]

Step-by-step explanation:

£480 = 120% (after adding the 20% VAT).

we want to know how much 100% is.

he do we get from 120% to 100% ?

first the formal long way

£480 = 120%

1% = 120%/120 = 480/120 = £4

100% = 1% × 100 = 4×100 = £400

once you understand this mechanism, you can apply the direct shortcut :

£480 / 1.2 = £400

as a multiplication with 100/120 is the same as a division by 120/100, which is 1.2.

and what we did at the beginning in long form was nothing else than

£480 × 100/120 = 480 × 10/12 = 480 × 5/6 = £400

7 0
2 years ago
Read 2 more answers
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