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tensa zangetsu [6.8K]
3 years ago
9

Quadrilateral ABCD is inscribed in circle O.

Mathematics
2 answers:
creativ13 [48]3 years ago
7 0

Opposite angle of a quadrilateral add up to 180 degrees.

This means Angle A plus Angle C equal 180.

We can solve for X using that, then solve for Angle B.

2x-7 + x +4 = 180

Simplify:

3x -3 = 180

Add 3 to each side:

3x = 183

Divide both sides by 3:

x = 183 /3

x = 61

Now we know x, replace x with 61 in the equation for Angle B:

Angle B = 2x+3 = 2(61) +3 = 122 +3 = 125 degrees.

Monica [59]3 years ago
4 0

I encourage everyone taking this test to take my word that it's 125.

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find three consecutive odd integers such that the sum of the smallest number and middle number is 27 less than 3 times the large
katrin2010 [14]

A generic odd number can be written as

2k+1,\quad k \in \mathbb{Z}

Since there is an odd number every two numbers, three consecutive odd numbers will be

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Now let's make up the equations: the sum of the first two is

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And 27 less than 3 times the largest is

3(2k+5)-27

These two must be the same, so we have

(2k+1)+(2k+3)=3(2k+5)-27 \iff 4k+4 = 6k+30-27 \iff 4k+4=6k+3

Subtracting 4k and 3 from both sides gives

1=2k \iff k=\dfrac{1}{2}

Which means that the problem has no solution.

To confirm this hypothesis, we can observe that, on the left hand side, we have the sum of two odd numbers, which is even

On the right hand side, we have an odd number, multiplied by 3 (still odd), take away 27 (still odd).

So, the left hand side is even, and the right hand side is odd. They can't be the same number.

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What is the value of x to the nearest tenth?
Citrus2011 [14]

Answer:

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Step-by-step explanation:

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A woodworking machine decreased the thickness of a board from 3/4 of in inch to 9/16 of an inch. by what number of inches (i) di
nataly862011 [7]

The thickness of the board was decreased from 3 / 4 inches to 9 / 16 inches.

Therefore,

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So the board's thickness in inches decreased by

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