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3 years ago

PLZ HELP!!!!!!! Can a kite be formed by drawing a triangle and then reflecting one or more times? Explain.

Mathematics

1 answer:

sveticcg [70]3 years ago

4 0

The answer is (B).

Draw any triangle ABC. Reflect this triangle across the line AB, creating triangle A'B'C' for which A'=A and B'=B. By definition of a reflection, sides B'C and B'C' are congruent. In addition, sides A'C and A'C' are congruent. The quadrilateral CA'C'B' has two pairs of consecutive sides that are congruent and no congruent opposite sides. By definition, this is a kite.

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HELP!!!! -5 3/4 - 3 1/2 = ?

umka21 [38]

Answer:

9.25 or 9 1/4

Step-by-step explanation:

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3 years ago

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Name the number property illustrated by this equation: -2(–3 + 7) = -2(-3) + (-2)(7)

erica [24]

Answer:

The distributive property of multiplication

Step-by-step explanation:

explanation:-

The distributive property of multiplication states that when a number is multiplied by the sum of two numbers, the first can be distributed to both of those numbers and multiplied by each of them separately,then adding the two products together for the same result as multiplying the first number by sum.

a(b+c) = a.b + a.c

so -2 ( -3+7) = -2(-3) + (-2)(7)

-8 = 6 -14

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3 years ago

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Will mark as brainiest answer!!!!! Please show work as to how you found the answer

Alchen [17]

(2,8) and (-2,10)

y₂ - y₁ used to find the slope
x₂ - x₁

plug in the coordinates
10-8 = 2 all equals -1/2
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plug one of the coordinates and the slope into y=mx+b, and solve
8=-1/2(2)+b
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Final Answer: y = -1/2x + 9

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3 years ago

Find a Cartesian equation for the curve.

Galina-37 [17]

$r = 3sec( \alpha ) \\ r = \frac{3}{cos( \alpha )}$

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$r = \frac{3}{ \frac{x}{r} } \\ r = \frac{3r}{x} \: \: \: \: \: \: x = 3 \\ line$

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2 years ago

A,B,C,D are points on the circumference of a circle centre o

Marina86 [1]

The points A,B,C,D make up the circumference of the circle

The measure of angle BAD is 65 degrees

<h3>How to determine the measure of angle BAD?</h3>

The measure of angle ODB is given as:

ODB = 25 degrees

Considering the triangle BOD, we have:

ODB + BOD + DBO = 180

Where:

ODB = DBO = 25

So, we have:

25 + BOD + 25 = 180

Solve for BOD

BOD = 130 degrees

The angle at an arc is twice the angle at the circumference.

So, we have:

BOD = 2 * BAD

Substitute 130 for BOD

130 = 2 * BAD

Divide both sides by 2

65 = BAD

Hence, the measure of angle BAD is 65 degrees