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tiny-mole [99]
2 years ago
9

What is the measure of angle BEC?

Mathematics
1 answer:
Sphinxa [80]2 years ago
3 0

Answer:

< BEC =  \frac{1}{2}  \times  80 \degree \\  < BEC =  40 \degree

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Volume of a cylinder with a radius of 13 in and height of 30 in
Elodia [21]

Answer:

V≈15927.87 in³

Step-by-step explanation:

The volume of a cylinder is found by multiplying the area of its top or base by its height and is defined as: V = π*r²*· h

3 0
2 years ago
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What's the complex conjugate of 13-21i
Lubov Fominskaja [6]
The complex conjugate of 13-21i is 1.3+ 2i.

In general the conjugate of a+bi is a - bi
and the conjugate of a-bi is a + bi

3 0
3 years ago
Please help thank you.
MA_775_DIABLO [31]
Question 1:

To start off this question, we can tell that this is a square because it has 4 right angles and 4 congruent sides.

A square has four parallel sides and 4 congruent sides, so a square is a rhombus and parallelogram. 

A square has 4 right angles, so it's also a rectangle.

A square has 4 sides, so it's also a quadrilateral.

The first choice is your answer.

Question 2:

Not all quadrilaterals are rectangles, so A is incorrect.

Not all quadrilaterals are squares, so B is incorrect.

All rectangles are types of quadrilaterals, so C is correct.

Not all quadrilaterals are parallelograms, so D is incorrect.

Thus, C is your answer.

Question 3: 

The first choice will not work because a rhombus will satisfy those conditions, and a rhombus is not always a square.

The second choice will work because only a square will satisfy that condition because only squares have 4 congruent sides along with equal diagonals.

Thus, the second choice is your answer.

Have an awesome day! :)
7 0
3 years ago
Name the figure below in two different ways.
Reil [10]

Answer: MUV OR VUM

Step-by-step explanation:

It is a line so anyway you name it is fine as lomg as its in it's respected order.

5 0
2 years ago
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In ΔUVW, the measure of ∠W=90°, the measure of ∠V=71°, and VW = 55 feet. Find the length of UV to the nearest tenth of a foot.
Katarina [22]

Answer:

168.9 feet

Step-by-step explanation:

7 0
2 years ago
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