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ycow [4]
3 years ago
6

I need to know how to solve this and the answer

Mathematics
2 answers:
Gemiola [76]3 years ago
8 0

Answer:

69°

Step-by-step explanation:

180 - 21 -90 = 69

hope this helps...

N76 [4]3 years ago
8 0

Answer: The missing angle is 69°

Step-by-step explanation: When all the angles have their vertex on a straight line, they must add up to 180° They are "supplementary" angles.

The "box" in the corner of an angle is a symbol for "right angle" so that is a way to have a "given" 90°

Knowing that, you can add the "given" 90° + 21° to get 111°

Subtract 111° from 180° to find Angle a:

180 - 111 = 69

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Which properties does not belong with the other three?
Oksi-84 [34.3K]

Hi there!  

»»————- ★ ————-««

I believe your answer is:  

x - 6 = 5

»»————- ★ ————-««  

Here’s why:  

⸻⸻⸻⸻

I am assuming that '3=x divided by 3' is supposed to be 3 = \frac{x}{3}.

⸻⸻⸻⸻

The first, second, and fourth equations have x divided by a number. To isolate x, we would have to use the multiplication property of equality.

⸻⸻⸻⸻

For the third one (x-6=5), the variable 'x' is being subtracted by 6. We would have to use the addition property of equality to isolate x.

⸻⸻⸻⸻

»»————- ★ ————-««  

Hope this helps you. I apologize if it’s incorrect.  

8 0
3 years ago
Please help! I will mark as brainliest. <3
Andrew [12]
<h2>Solving Inequalities</h2><h3>Answer:</h3>

(-\infty,-8]

<h3>Step-by-step explanation:</h3>

-2x +7 \geqslant 23 \\ -2x +7 -7 \geqslant 23 -7 \\ -2x \geqslant 16 \\ \frac{-2x}{-2} \leqslant \frac{16}{-2} \\ x \leqslant -8

The values of x has to be less than or equal to 8 so x \in (-\infty,-8]

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Fittoniya [83]

Answer:

x-int: (-2,0)

y-int: (0,1.333)

Step-by-step explanation:

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A single die is rolled twice. find the probability of rolling an odd number the first time and a number greater than 3 the secon
Lisa [10]

|\Omega|=6\cdot6=36\\ |A|=3\cdot3=9\\\\ P(A)=\dfrac{9}{36}=\dfrac{1}{4}=25\%

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39...-7 lebih besar atau lebih kecil &gt;
Basile [38]
39 > -7 (greater then)
4 0
3 years ago
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