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poizon [28]
3 years ago
7

Which transformation will always map a parallelogram onto itself?

Mathematics
1 answer:
eimsori [14]3 years ago
4 0

Answer:

C..

Step-by-step explanation:

A rotation of 180 degrees about the center of the parallelogram will  do this.

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If y varies directly as x and y = 12 when x = 8, find y when x = 14.
Alex17521 [72]
The direct variation between x and y may be written as,
                                    y = kx
where k is the constant of variation. From the first set of values of the variables,
                                 12 = k(8)
the value of k is 1.5. Substituting the next set to the same equation,
                                 y = 1.5(14) 
The value of y is 21. 
8 0
3 years ago
If F denotes a temperature in degrees Fahrenheit and C is the same temperature measured in degrees Celsius, then F and C are rel
madreJ [45]

Step-by-step explanation:

F= 9/5(C + 32)

5/9 F = C + 32

C = 5/9 F - 32

3 0
3 years ago
In the image below, ABC ~ DEF What is the length of EF and the measure of D
Gwar [14]
If triangle ABC is congruent to triangle DEF, then EF = BC = 27
This is because BC and EF are the last two letters of ABC and DEF respectively. They match up and correspond, being congruent by CPCTC

-------------------------------------------------------------------------------------------------------------

Similarly, if triangle ABC is congruent to triangle DEF, then angle D = angle A = 49 degrees

The letter D and the letter A are the first letters of DEF and ABC respectively. So they match up and are congruent by CPCTC

CPCTC = Corresponding Parts of Congruent Triangles are Congruent

-------------------------------------------------------------------------------------------------------------

So in short, the answer is choice B) 27; 49

7 0
3 years ago
As Venus revolves around the sun, it travels at a rate of approximately 22 miles per second. Convert this rate to kilometers per
Leona [35]
1 mile = 1.6  kms
22 miles / sec = 22*1.6 =  35.2 km / sec 

Number of kms that Venus travel in 2 seconds = 70.4
4 0
3 years ago
Which set of statements would describe a parallelogram that can always be classified as a rhombus? I. Diagonals are perpendicula
trasher [3.6K]

Answer:

1. I, II,

Step-by-step explanation:

<em>I. Diagonals are perpendicular bisectors of each other  </em>

Yes, because 4 sides are congruent so it makes the two diagonals perpendicular bisectors

<em>II. Diagonals bisect the angles from which they are drawn </em>

Yes, That is the property of the diagonal!

<em> III. Diagonals form four congruent isosceles right triangles. </em>

No, only two pairs of right triangles are congruent and sometime the side of each pair are different to each other.

Hence, we choose I and II

4 0
3 years ago
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