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kompoz [17]
3 years ago
15

Please help answer this

Mathematics
2 answers:
Gemiola [76]3 years ago
6 0

Answer:

Choice C is correct.(f-g)(x) = -4x²+10x is the answer.

Step-by-step explanation:

We have given two functions:

f(x) = -x²+6x-1

g(x) = 3x²-4x-1

We have to find (f-g)(x) = ?

(f-g)(x) = f(x) - g(x)

Putting values in above formula we get,

(f-g)(x) =(-x²+6x-1) - ( 3x²-4x-1)

(f-g)(x) = -x²+6x-1-3x²+4x+1

(f-g)(x) = -4x²+10x

Colt1911 [192]3 years ago
5 0

For this case we have that given two functions, f (x)and g (x), then(f-g) (x)is given by:

(f-g) (x) = f (x) -g (x)

So:

f (x) = - x ^ 2 + 6x-1\\g (x) = 3x ^ 2-4x-1

We have to:

(f-g) (x) = - x ^ 2 + 6x-1- (3x ^ 2-4x-1)\\(f-g) (x) = - x ^ 2 + 6x-1-3x ^ 2 + 4x + 1\\(f-g) (x) = - 4x ^ 2 + 10x\\

Answer:

(f-g) (x) = - 4x ^ 2 + 10x

Option C

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Someone please help me on this question ?:)
katrin2010 [14]

Answer: The TV is 48 inches wide.

Step-by-step explanation: To find the solution to this equation we must use the Pythagorean theorem. The Py. Theo. is basically the formula :

a^2 + b^2 = c^2    You say this as "A squared plus b squared equals c squared"

To use this formula you must plug in the given values of a and b, to find c. A and b represent the two bases of the triangle, while c is the hypotenuse. In this equation we already have the value of c and a. We need to find b, but in order to do that we use a different formula. We use : c^2 - a^2 = b^2

See :

52^2 - 20^2 = b^2       *The ^2 means "to the power of" aka an exponent*

2704 - 400 = b^2     *When dealing with ^2, all you do is multiply the number by itself*

2304 = b^2      *Next, we find the square root of our current number.*

48 = b    

*Another way to solve this equation is to memorize all the Pythagorean Triples. With that knowledge, you wont even need to use the formula because you will already know all three values. I hope this helped you understand :)



3 0
3 years ago
Please help marking brainlists 5-9c-4c=
Ivanshal [37]

Answer:

the answer would be: 5-13c

7 0
2 years ago
Make a ten or a hundred to add mentally 339+123
lianna [129]
9+3=12
30+20=50
300+100=400
Then add.
12+50+400=462
<span>So 339+123=462</span>
5 0
2 years ago
Mr. Wilson opened a bakery and a juice bar in his neighborhood. The functions below represent the profit, in dollars, earned fro
zavuch27 [327]

Answer:

The answer is given below

Step-by-step explanation:

The question is not complete, because the function for the profit is not given but I can show you how to calculate this.

Since Mr. Wilson has a bakery and a juice bar, his total profit earned in t months would be the sum of profit from the bakery with the profit from the juice bar within t months.

Let us assume that the profit from the bakery in t months is given by:

B(t) = 2t³

while the profit from the juice bar in t months is given by:

J(t) = 2.3^t-2

Therefore the total profit is given by:

P(t) = B(t) - J(t) = 2t^3+2.3^t-2

4 0
3 years ago
12x&gt;9 (2x-3)-15 solve for x and show steps please.
Verdich [7]

12x > 9(2x-3)-15

distribute the 9

12x > 18x-27 -15

combine like terms on the right side

12x > 18x-42

subtract 18x from both sides

-6x > -42

divide both sides by -6

x = -42 / -6 = 7

x >7

4 0
3 years ago
Read 2 more answers
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