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podryga [215]
3 years ago
3

In circle R, RD¯¯¯¯¯ is a radius and DF¯¯¯¯¯ is a tangent segment.

Mathematics
1 answer:
Vinvika [58]3 years ago
8 0

It is given in the question that RD is a radius and DF is a tangent segment.

And in a circle, radius and tangent are always perpedicular.

And it is not necessary that they are equal.

Neither it is necessary that RD and RF are equal.

So the only correct option is the last option, that is triangle RDF is a right triangle.

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2. angle ABE = angle MNP <br><br> Write another valid congruency statement:​
Free_Kalibri [48]

Given:

\Delta ABE\cong \Delta MNP

To find:

The congruent angles and sides, then find the another valid congruency statement.

Solution:

We have,

\Delta ABE\cong \Delta MNP

We know that, corresponding parts of congruent triangles are congruent (CPCTC).

Using CPCTC, we get

Angles:

\angle A\cong \angle M

\angle B\cong \angle N

\angle E\cong \angle P

Sides:

AB\cong MN

BE\cong NP

AE\cong MP

The another congruent statement is \Delta BEA\cong \Delta NPM.

Therefore, the required table is

Angles                                              Sides

\angle A\cong \angle M                                        AB\cong MN

\angle B\cong \angle N                                        BE\cong NP

\angle E\cong \angle P                                        AE\cong MP

The another congruent statement is \Delta BEA\cong \Delta NPM.

4 0
3 years ago
Write the point-slope equation of the line that passes through(3,5) and (7,1)
Liono4ka [1.6K]

Answer:   y - 1 = –(x –7)

or   y –5 = –1(x –3)

The attachment shows the graph of these equations (identical)

Step-by-step explanation:

The basic form for a point-slope equation is

y - b = m(x - a)

a is the x-value from the given coordinate,  b is the y-value form the given coordinate,  m is the slope. x and y are the variables in the function.

To find the slope, m, use the given coordinates. Get the difference in the y-values and divide by the difference in the x-values. This is "rise over run."

Subtract the first coordinate from the second coordinate.

Given coordinate points: ​(3​,5) and ​(7​,1)    substitute values:

m= 1 –5 / 7 –3  becomes  m= –4/4   so the slope, m = –4/4

That is –1  The "1" is "understood," so only the negative sign represents the slope  in the equation

To write the equation:  Take the basic form, substitute b and a values from either given coordinate. And use the value of m we just calculated.

y - b = m(x - a)  Using the second coordinate: (7,1)

y - 1 = –(x –7)

or using the first coordinate:

y –5 = –(x –3)

5 0
3 years ago
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Eva8 [605]

Answer:

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tan 57 = x/6

6 tan 57 = x

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5 0
4 years ago
Read 2 more answers
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kodGreya [7K]

(−3x)(y3)+7xy3+(−x)(y3)+(−3x)(y3) = 0

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AleksandrR [38]

Answer: x = -(9/4)

Step-by-step explanation:

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3 years ago
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