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allochka39001 [22]
3 years ago
12

I don’t know if I get this right so can someone correct it or check it ?

Mathematics
1 answer:
Llana [10]3 years ago
6 0

Answer:

i think thats right

Step-by-step explanation:

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Someone please help me
Vitek1552 [10]

Answer:

x = 34°

Step-by-step explanation:

The chord- chord angle x is half the sum of the measures of the arcs intercepted by the angle and its vertical angle.

x = \frac{1}{2} ( AB + CD ) = \frac{1}{2} (45 + 23)° = 0.5 × 68° = 34°

8 0
3 years ago
A number is selected at random from the set {2, 3, 4,. 10}. Which event, by definition, covers the entire sample space of this e
Citrus2011 [14]

The event by definition that covers the entire sample space of the experiment is;

<em><u>The number is even or less than 12</u></em>

We are given the numbers in the set as;

set {2, 3, 4,... 10}.

Now, the numbers in the set are even and odd numbers from 2 to 10 with 10 being the highest and 2 being the lowest.

Thus the event that covers this sample space is simply a set of numbers that are even or less than 12.

Read more about sample space of set at; brainly.com/question/18866708

6 0
3 years ago
9. Select all expressions that are
Kruka [31]

Answer:

Step-by-step explanation:

2(9a - 6) = 2*9a - 2*6 = 18a - 12    

Yes, it is equivalent.

6*(3a-2) = 6*3a - 6*2 = 18a - 12

Yes, it is equivalent.

-3(6a+4)= -3*6a + 4*(-3) = -18a - 12

No, not equivalent

3(6a+4) = 3*6a + 3*4 = 18a + 12

No, not equivalent

-3(4-6a) = -3*4  - 6a*(-3 )  = -12 + 18a = 18a - 12

Yes, it is equivalent.

7 0
3 years ago
Read 2 more answers
Circle the quadrilaterals that have all the attributes one rectangle? Trapezoid, parallogram, square, rhombus
Liono4ka [1.6K]
All of the above! the all have attributes to rectangles
7 0
3 years ago
Read 2 more answers
Mrs. Yang is in charge of playing the music while her class plays musical chairs. In the first round, Mrs. Yang played the music
MrRa [10]

Answer:

She played the music 5 times as long in the first round as she did the second round

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
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