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3 years ago

Complete this sentence. The melting point of a sample will ____________ when the size of the sample increases.

1 answer:

3 0

Answer: stay the same

The melting point is a temperature when the solid object become liquid. The melting point is not influenced by how many <span>samples </span>need to be melt, but by the kind of the object itself. Water still freeze/melt at 0 Celcius no matter how many liters the sample size.
Increase in sample size only increase the force needed.

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Write a sequence of transformation that maps quadrilateral ABCD onto quadrilateral A. B. C. D IN THE PICTURE

Mice21 [21]

Answer:

The sequence of transformation is reflected across the y-axis and translated 2 units down

Step-by-step explanation:

Lets revise some transformation

- If point (x , y) reflected across the x-axis

∴ Its image is (x , -y)

- If point (x , y) reflected across the y-axis

∴ Its image is (-x , y)

- If point (x , y) translate h units to the right

∴ Its image is (x + h , y)

- If point (x , y) translate h units to the left

∴ Its image is (x - h , y)

- If point (x , y) translate k units up

∴ Its image is (x , y + k)

- If point (x , y) translate k units down

∴ Its image is (x , y - k)

* Now lets solve the problem

∵ The vertices of figure ABCD are:

A (-1 , 3) , B (1 , 0) , C (2 , 3) , D (1 , 4)

∵ The vertices of figure A"B"C"D" are:

A" (1 , 1) , B" (-1 , -2) , C" (-2 , 1) , D" (-1 , 2)

* Lets compare between ABCD and A"B"C"D"

∵ All x-coordinates has opposite signs

-1 ⇒ 1 , 1 ⇒ -1 , 2 ⇒ -2 , 1 ⇒ -1

∴ The ABCD is reflected across the y-axis

∵ All y-coordinates subtracted by 2

3 ⇒ 1 , 0 ⇒ -2 , 3 ⇒ 1 , 4 ⇒ 2

∴ The ABCD is translated 2 units down

* The sequence of transformation is reflected across the y-axis

and translated 2 units down

5 0

3 years ago

A jar contains 4 blue marbles, 6 red marbles, 10 purple

earnstyle [38]

Answer:

Step-by-step explanation

I got the right answer

4 0

3 years ago

M to the second power equals 49. Is it 7?

Feliz [49]

M^2 = 49
M^2 = 7^2
M = -7 and M = 7

4 0

3 years ago

Read 2 more answers

An equation and the steps to solve it are shown below:

liraira [26]

Step 1,
what i am thinking you're saying is 2x-1/4(12x+4)
so you would distribute the -1/4 to the 12x and the 4.
therefore making it a negative, not a positive.
so, i think step 1 is wrong.

6 0

3 years ago

Read 2 more answers

Please help !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Morgarella [4.7K]

Answer:

Step-by-step explanation:

1, Extand line y for which y intercepts CB at point K

2, line y is a straight line and thus KAB=180-110=70

3, AY parallel to CX thus angle CKA=130 which is a alternative angle of BCX (if you can't see then try to extend CX as well

4,BKA=180-130=50 as BC is a straight line

5, the sum of interior angle of a triangle is 180, and we have KAB and BKA, thus angle ABC = 180-KAB-BKA=180-70-50=60