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yulyashka [42]
3 years ago
10

Please help me with geometry

Mathematics
1 answer:
Vikentia [17]3 years ago
7 0

Answer:

x = 7

Explaination:

ABC = 40°

and BD bisects the angle so ABD = 20°

so 3x-1=20

solving for x gets us

x = 7

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-2(x+3)= what's the answer
yuradex [85]
-2(x + 3)
Distribute the -2 to both x and +3 since the -2 is outside of the parentheses
-2 * x = -2x
-2 * 3 = -6
Therefore, your answer is -2x - 6
6 0
3 years ago
Read 2 more answers
square root of a certain number is approximately 9.2371. The cedrain number is between what 2 integers.
Murrr4er [49]

Use the fact that a for non-negative a,b.

\sqrt{81}=9 and \sqrt{100}=10, which means the square root of some number between 81 and 100 has an approximate value of 9.2371.

8 0
4 years ago
3. For each pair of shapes, decide whether or not it appears that the two shapes are
zhuklara [117]

Answer:

Yes, both shapes appear to be congruent.

Step-by-step explanation:

Both shapes are congruent.

<u>Reasoning:</u>

1) Both shapes are ovals.

2) Both shapes are of the same size.

3) Both shapes are just in a different position.

4) Shape 1 is rotated 90 degrees left or right to form shape 2.

8 0
4 years ago
Read 2 more answers
Solve the equation 3(2x + 2) = 3x - 15.<br> Ox=-7<br> 17<br> Ox=-<br> Ox=3<br> Ox=7
tatiyna

Simplify:

6x + 6 = 3x - 15

Now use all solutions

6(7) + 6 = 3(7) - 15

42 + 6 = 21 - 15

Nearly, you can tell it doesn't work.

6(-7) + 6 = 3(-7) - 15

-42 + 6 = -21 - 15

-36 = -36

So, -7 is x.

8 0
2 years ago
2(n+2)=10 solve for n
astra-53 [7]

Answer :

<em>\:  \:  \:  \:  \:  \: 2(n + 2) = 10 \\  =  > 2n + 4 = 10 \\  =  > 2n = 10 - 4 \\  =  > 2n = 6 \\  =  > n =  \frac{6}{2}  \\   = > n = 3</em>

5 0
3 years ago
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