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3 years ago

PLZ HELP CLICK THE PICTURE

Mathematics

1 answer:

Ostrovityanka [42]3 years ago

4 0

Answer:

1: 1 & 5

2: 4 & 5

3: 6 & 8

4: 2 & 4

have a nice day :)

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Is AB parallel to CD? Explain.

professor190 [17]

Answer:

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Step-by-step explanation:

obviously a parallel line

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3 years ago

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NEED THE ANSWER ASAP, PLEASE HELP!! What are the coordinates of the focus of the parabola?

qwelly [4]

Answer:

Vertex is (-8, 4) not one of the answers offered!

Step-by-step explanation:

Factor -1/8 out of the first two terms. Leave a space inside parentheses in which to add a number.

$y=-\frac{1}{8}(x^2 + 16x + \text{-----})-4$

Complete the square by squaring half the coefficient of x and adding it in the space.

$(\frac{16}{2})^2=64$

Add 64 in the space you made, then compensate for that at the end of the expression by subtracting $-\frac{1}{8}(64)=-8$

$y=-\frac{1}{8}(x^2+16x+64)-4+8\\y=-\frac{1}{8}(x+8)^2+4$

The x-coordinate of the vertex is the opposite of +8, the number inside the parentheses. The y-coordinate of the vertex is the number at the end of the expression.

V(-8, 4)

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3 years ago

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Katarina [22]

Answer:

Step-by-step explanation:

A division between two roots that have the same index can be rewritten as a division between the two terms with a unic root

$\sqrt{7x^2/3x} = \sqrt{7x/3}$

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How long would it take for a car to travel 200 km if it has an average speed of 55 km/hr?

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Answer:

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Step-by-step explanation:

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