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TiliK225 [7]
3 years ago
10

HELP WILL MARK THE BRAINLIEST!!!!

Mathematics
1 answer:
Maurinko [17]3 years ago
3 0

Answer:

I think it is A

Step-by-step explanation:

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a road follows the shape of a parabola f(x)=3x2– 24x + 39. A road that follows the function g(x) = 3x – 15 must cross the stream
Nonamiya [84]

the coordinates where the bridges must be built is (3,-6) and (6,3) .

<u>Step-by-step explanation:</u>

Here we have , a road follows the shape of a parabola f(x)=3x2– 24x + 39. A road that follows the function g(x) = 3x – 15 must cross the stream at point A and then again at point B. Bridges must be built at those points.We need to find Identify the coordinates where the bridges must be built. Let's find out:

Basically we need to find values of x for which f(x) = g(x) :

⇒ f(x)-g(x)=0

⇒ 3x^2- 24x + 39-(3x - 15 ) =0

⇒ 3x^2- 24x + 39-3x + 15  =0

⇒ 3x^2- 27x + 54  =0

⇒ x^2- 9x + 18  =0

⇒ x^2- 6x-3x + 18  =0

⇒ x(x- 6)-3(x - 6)  =0

⇒ (x-3)(x- 6)  =0

⇒ x=3 , x=6

Value of g(x) at x = 3 : y=3x -15 = 3(3)-15 = -6

Value of g(x) at x = 6 : y=3x -15 = 3(6)-15 = 3

Therefore , the coordinates where the bridges must be built is (3,-6) and (6,3) .

7 0
4 years ago
Can you give me the answer? Ill give brainliest for the right answer
Serga [27]

Answer:

I believe the answer is b

Step-by-step explanation:

I might be wrong

3 0
3 years ago
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Verify sin(360° - 0) = -sin0​
zaharov [31]

Answer:

see explanation

Step-by-step explanation:

Using the Addition formula for sine

sin(x ± y) = sinxcosy ± cosxsiny

Consider the left side

sin(360 - Θ ), then

= sin360°cosΘ - cos360°sinΘ

= 0 × cosΘ - 1 × sinΘ

= 0 - sinΘ = - sinΘ → verified

6 0
3 years ago
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Which statements are true?
Montano1993 [528]
Three of those statements are true. 
The only one that is NOT correct is:
<span>Any quadrilateral with one right angle is a rectangle.


</span>
6 0
3 years ago
9,10,12,x,20,25 find x the median is 14
boyakko [2]

Answer:

16

Step-by-step explanation:

8 0
2 years ago
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