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3 years ago

8

Which of the following statements must be true based on the diagram below? Answer correctly !!!!!!!! Will mark brainliest !!!!!!

!!!!!!

1 answer:

Vinil7 [7]3 years ago

7 0

Answer:

3rd one

Step-by-step explanation:

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Which equation can be used to find one of the missing side lengths in the triangle?

goblinko [34]

Cos60 = BC / AB
Cos60 = a/12

answer is D. last one
Cos60 = a/12

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3 years ago

Nina knows that the average of the x-intercepts represents the line of symmetry for a quadratic function through the x-axis. Whi

Romashka [77]

Answer:

$\bf \displaystyle\frac{5+1}{2}=\displaystyle\frac{6}{2}=3$

Step-by-step explanation:

The x-intercepts are the values of x for which y=0, that is f(x)=0.

The x-intercepts of

$\bf f(x)=4x^2-24x+20$

are the values of x such that

$\bf 4x^2-24x+20=0$

Divide both sides by 4 to simplify a little

$\bf x^2-6x+5=0$

Solve the quadratic equation

$\bf x=\displaystyle\frac{-(-6)\pm\sqrt{(-6)^2-4*1*5}}{2*1}=\displaystyle\frac{6\pm\sqrt{36-20}}{2}=\\\\=\displaystyle\frac{6\pm\sqrt{16}}{2}=\displaystyle\frac{6\pm4}{2}$

and you get the 2 x-intercepts

x =10/2 and x = 2/2

or

x = 5 and x = 1

The average is the midpoint

$\bf \displaystyle\frac{5+1}{2}=\displaystyle\frac{6}{2}=3$

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3 years ago

Read 2 more answers

Help solve this. 1,2,3,4,5.

zvonat [6]

6 x 10^8 = 600 x 10^6 compare to 3 x 10^6

Since both now have same exponents

so 600/3 = 200

Conclusion: Answer is 2nd option

6 x 10^8 is 200 times larger than 3 x 10^6

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3 years ago

Sam spent $32.50 to take his girlfriend to the movies. He spent 40% on snacks and the remainder was spent on the two tickets. Ho

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4 years ago

2 lengths of a rectangle are shown. (N-5) (n+5) what is the area of the rectangle?

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Is there a picture you can show me?

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3 years ago

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