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leva [86]
3 years ago
8

What are the x-intercepts of the functions fx)=-4(x+3)(x-9) ?​

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

Answer:

x=9 or -3

Step-by-step explanation:

used quadratic formula

standard form: ax^2 + bx +c

quadratic formula:

x= -b +- square root of b^2 -4(a)(c) divided by 2(a)

Google quadratic equation for more

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Choose the correct subject pronoun for ' como te llama' tu ella ellos ustee
GuDViN [60]

Answer:

ustee

Step-by-step explanation:

The other ones don't make sense if you insert them into that sentence

8 0
3 years ago
Sal bought x shares of a stock that sold for 31.50 per share. He paid a 1% commission on the sale. The total cost of his investm
Licemer1 [7]

Answer:

180

Step-by-step explanation:

add 1% to 31.50 to get 31.815

then take the total 5276.70 and divide by 31.815

5 0
3 years ago
What number is 1/5 of another number the sum of the two numbers is six find the two numbers
Oliga [24]

Answer:

the two numbers are 3 and 3.

1/5 of 3 is 0.6

1/5 of 6 is 1.2

Step-by-step explanation:

3 + 3 = 6

(1/5)3 = 0.6

(1/5)6 = 1.2

8 0
3 years ago
Explain how the distance formula can prove Pythagoras' Theorem. In your
Paul [167]

Answer:

Given a triangle ABC, Pythagoras' Theorem shows that:

c^2=a^2+b^2

Thus,

c = \sqrt{a^2+b^2}

The distance formula, gives an equivalent expression based on two points at the end of the hypotenuse for a triangle.

d^2 = (x_{2} -x_{1})^2 + (y_{2} -y_{1})^2

d = \sqrt{(x_{2}-x_{1})^2 +  (y_{2} -y_{1})^2 }

Therefore when given the hypotenuse with endpoints at

(x_{1}, y_{1})  and {(x_{2}, y_{2})

We know that the third point of the right triangle will be at

(x_{2}, y_{1})

and that the two side lengths will be defined by the absolute values of:

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2 years ago
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