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Arlecino [84]
3 years ago
11

Which angles are right? Check all that apply

Mathematics
2 answers:
lesantik [10]3 years ago
8 0

Answer:

A, B,C but not d

Step-by-step explanation:

A because its just 90 degrees, same with b, and c. but not d because its under 90

Hitman42 [59]3 years ago
5 0

Answer:

If I remember correctly, right angles are 90 degree angles. So the answers would be A. B. and C.

Step-by-step explanation:

If you see the little box on the angle, that means it's a 90 degree (right) angle.

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Lapatulllka [165]
Could you show a picture so i could understand a little bit better?
6 0
3 years ago
Which expressions are equivalent to 3(x + 3y + 2x − y)?
Irina-Kira [14]
3(x + 3y + 2x − y) = 3(3x + 2y)
= 9x + 6y
See if any of these match an answer option.
8 0
3 years ago
Read 2 more answers
Plz help with number 1
Trava [24]

In an isosceles triangle, the base angles are congruent. The third angle is called the vertex angle.

Here, the vertex angle is <A.

Therefore, m<C = m<B.

m<A = 3m<B + 20

m<A + m<B + m<C = 180

3m<B + 20 + m<B + m<B = 180

5m<B + 20 = 180

5m<B = 160

m<B = 32

m<C = m<B = 32

Answer: m<C = 32 deg

4 0
3 years ago
A rhombus has coordinates A(-6, 3), B(-4, 4), C(-2, 3), and D(-4, 2). What are the coordinates of rhombus A′B′C′D′ after a 90° c
Liula [17]

We are given that the coordinates of the vertices of the rhombus are:
<span><span>A(-6, 3)
B(-4, 4)
C(-2, 3)
D(-4, 2)

To solve this problem, we must plot this on a graphing paper or graphing calculator to clearly see the movement of the graph. If we transform this by doing a counterclockwise rotation, then the result would be:
</span>A(-6, -3)</span>
B(-4, -4)
C(-2, -3)
D(-4, -2)

 

And the final transformation is translation by 3 units left and 2 units down. This can still be clearly solved by actually graphing the plot. The result of this transformation would be:

<span>A′(6, -8)
B′(7, -6)
C′(6, -4)
D′(5, -6)</span>

7 0
3 years ago
Read 2 more answers
5
uranmaximum [27]

Answer:

ok....let me try .....

  • ohhhh leave it. gu

<h2>..ok bro....sorry don't be angry <em><u>b</u></em><em><u>j</u></em><em><u>h</u></em><em><u>u</u></em><em><u>j</u></em><em><u>j</u></em></h2>
6 0
3 years ago
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