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2 years ago

Complete the two-column proof.

Mathematics

2 answers:

Nimfa-mama [501]2 years ago

7 0

The answer is B, hope this helped

musickatia [10]2 years ago

4 0

Answer:

that is my answer hope it helps you wish you all the best

Step-by-step explanation:

I choose A for my Alternate Exterior angles theorem/ Vertical

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Well I'm having troubles with something I have no idea what it is or how to do it. The problem is x^2 -18x+8=0. I only know how

Lubov Fominskaja [6]

Answer:

$x = \frac{-(-18) -\sqrt{(-18)^2 -4*1*8}}{2} = \frac{18 -2 \sqrt{73}}{2}= 9 -\sqrt{73}$

$x = \frac{-(-18) +\sqrt{(-18)^2 -4*1*8}}{2} = \frac{18 +2 \sqrt{73}}{2}= 9 +\sqrt{73}$

Step-by-step explanation:

We have the following equation:

$x^2 -18 x +8 =0$

We can use the quadratic formula given by:

$x = \frac{-b \pm \sqrt{b^2 -4ac}}{2a}$

Where:

$a = 1 , b=-18, c =8$

And replacing we got:

$x = \frac{-(-18) -\sqrt{(-18)^2 -4*1*8}}{2} = \frac{18 -2 \sqrt{73}}{2}= 9 -\sqrt{73}$

$x = \frac{-(-18) +\sqrt{(-18)^2 -4*1*8}}{2} = \frac{18 +2 \sqrt{73}}{2}= 9 +\sqrt{73}$

6 0

2 years ago

Rearrange the formula A= bh/2 for h

Natasha_Volkova [10]

Answer:

2A/b =h

Step-by-step explanation:

A= bh/2

Multiply each side by 2

2A = bh/2 *2

2A = bh

Divide by b

2A/b = bh/b

2A/b =h

8 0

2 years ago

Read 2 more answers

What is the estimated product for 2.34 X 16?

aleksandr82 [10.1K]

Answer:

37.44

Step-by-step explanation:

Hav a great day :3

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2 years ago

Quadrilateral DEFG has vertices D(−2,4) , E(4,7) , F(10,3) , and G(8,0) .

Bumek [7]

The formula for a rotation 270° counterclockwise about the origin is (x,y)--->(y,-x)

D'(4,2) E'(7,-4) F'(3,-10) G'(0,-8)

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3 years ago

Can someone PLEASE help me solve these last 2 problems so I can be done with this math class....really stumped on these 2....

dexar [7]

Both distances 3966 and 4746 were done in 6 hours, so the speeds are:
speed against wind = 3966/6=661 km/h (difference of airplane and wind)
speed with wind = 4746/6=791 km/h (sum of airplane and wind)

The speed of airplane is greater than that of the wind, so this is a sum and difference problem.

Greater speed (plane) = (sum+difference)/2=(791+661)/2=726 km/h
Lesser speed (wind) = (sum-difference)/2 = (791-661)/2 = 65 km/h

3 0

2 years ago