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attashe74 [19]
3 years ago
7

In the figure shown, AB = 8 and AD = 5. What is BC?

Mathematics
1 answer:
Aloiza [94]3 years ago
4 0

Answer:

i want to say three

Step-by-step explanation:

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F(t)=t^2+19t+60<br> What are the zeros of the function and what is the vertex of the parabola?
SVEN [57.7K]

Answer: -4,-15;\ \left(-\dfrac{19}{2},-\dfrac{121}{4}\right)

Step-by-step explanation:

Given

Function is F(t)=t^2+19+60

Zeroes of the function are

t^2+19t+60=0\\\\\Rightarrow t=\dfrac{-19\pm\sqrt{19^2-4\times 1\times 60}}{2\times 1}\\\\\Rightarrow t=\dfrac{-19\pm \sqrt{121}}{2}\\\\\Rightarrow t=\dfrac{-19\pm 11}{2}\\\\\Rightarrow t=-4,-15

Using completing the square method

y=t^2+2\times \dfrac{19}{2}t+\dfrac{19^2}{2^2}-\dfrac{19^2}{2^2}+60\\\\y=\left(t+\dfrac{19}{2}\right)^2+60-\dfrac{361}{4}\\\\y=\left(t+\dfrac{19}{2}\right)^2-\dfrac{121}{4}\\\\y+\dfrac{121}{4}=\left(t+\dfrac{19}{2}\right)^2\\\\\left(y-(-\dfrac{121}{4}\right)=\left(t-(-\dfrac{19}{2})\right)^2\\\\\text{The vertex is }\left(-\dfrac{19}{2},-\dfrac{121}{4}\right)

4 0
3 years ago
What is the answer for this 3x+4x+5x+...+43x
sweet-ann [11.9K]

Answer:

1032x

Step-by-step explanation:

3x+4x+\cdots+43x=x(3+4+\cdots+45) \\ \\ =43x\left(\frac{45+3}{2} \right) \\ \\ =43(24x) \\ \\ =1032x

7 0
1 year ago
Quiz 5:1 midsegments
Oksana_A [137]

Answer:

Step-by-step explanation:

7 0
3 years ago
Evaluate the expression<br><br> (3+2) x (5-1+2) x 4
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PEMDAS

(3+2)=5
(5-1+2)=6
6*5*4=120
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2 years ago
CAN YOU GUYS HELP ME CAUSE I'M STUCK
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Its equals to 16m^12p^8

Step-by-step explanation:

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