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oksian1 [2.3K]
3 years ago
9

From be the degree measure of angle r

Mathematics
1 answer:
EastWind [94]3 years ago
7 0
Set up an equation: 4x + 3 = 2x + 4
then solve for x
then plug x back in to the expression for R
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If two rectangles have the same perimeter, do they have to be congruent? Explain how you know.
ikadub [295]

Answer:

No

Step-by-step explanation:

Take square 4 X 4. Perimeter =16

Take rectangle h2 X w6. Perimeter =16

Clearly the same perimeter and not congruent

but this is just what I think

6 0
3 years ago
Read 2 more answers
CAN SOMEONE HELP ME PLEASE ILL GIVE BRAINLEST..I need step to step equation thanks​
Dmitrij [34]

Answer:

The required co-ordinate is (-2, -5).

Step-by-step explanation:

For a given point, reflection of a point (x, y) across a horizontal line y = k, the reflected co-ordinates will be: $ R_{y = k} = (x, 2k - y) $.

Here, (x, y) = (-2, 7) then reflection along the line y = 1, we get:

$ R_{y = 1} (-2, 7) = (-2, 2(1) - 7) $

= (-2, -5)

The reflected point is (-2, -5).

5 0
4 years ago
You are flying a kite on a line that is 350 feet long. Let's suppose the line is perfectly straight (it never really is) and it
aliina [53]

Answer:

We can think that the line of the kite is the hypotenuse of a triangle rectangle, and the altitude is one of the cathetus of the triangle.

And we know that it makes an angle of 65° with the horizontal (i guess this is measured between the hypotenuse and the horizontal adjacent to the kite.

This angle is complementary to the top angle of our triangle rectangle, such that A + 65° = 90°

A = 90° - 65° = 25°

Then the altitude of the kite is the adjacent cathetus to this angle.

We can use the relation:

sin(A) = Adjacent cathetus/hypotenuse.

Sin(25°) = X/350ft

Sin(25°)*350ft = X = 147.9m

4 0
3 years ago
If ΔABC ΔDEC, what is m∠D? A. 40° B. 150° C. 60° D. 80°
Nina [5.8K]
I think that the best answer here would be that A = 40 degrees. 
6 0
3 years ago
What is 6 divided by 46.8
sashaice [31]
The rounded answer of this question is 0.128 or 0.13
8 0
3 years ago
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