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gogolik [260]
3 years ago
13

Plz help i just started pretty confused

Mathematics
1 answer:
Elina [12.6K]3 years ago
4 0

Answer:

right

neither

straight

neither

Step-by-step explanation:

The first angle is a right angle.  The box in the corner indicates a 90 degree angle

The second angle is less than 90 degrees so it is an acute angle

The third angle is a straight line so it is a straight angle.

The fourth angle is wider than 90 degrees  it is an obtuse angle

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There are 6 gray keys for every 11 black keys. Also, the number of black keys is 2 less than twice the number of gray keys. Use
emmainna [20.7K]

\text{ Answer: There are }12\text{ gray keys.}\\\\\text{ there are }22\text{ black keys.}

Explanation:

Since we have given that

There are 6 gray keys for every 11 black keys .

So, the ratio will be 6:11

Let the number of gray keys be 6x

Let the number of black keys be 11x

Now, according to question,

11x=2\times 2x-2\\\\11x=12x-2\\\\11x-12x=-2\\\\-x=-2\\\\x=2

so,

\text{ there are }6x=6\times 2=12\text{ gray keys.}\\\\\text{ there are }11x=11\times 2=22\text{ black keys.}

8 0
3 years ago
Find the slope of the line passing through each pair of points.
Klio2033 [76]

Answer:

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3. (5-0)/(1 -(-8))

5/1+8

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-10/0.5

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7+1/0

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the slope is undefined

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vladimir1956 [14]

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Step-by-step explanation:

The calculator gave me this answer

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Step-by-step explanation:

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