The answer is
b. acute triangle
You will try all the cases and see if all the equations will match after substituting or no.
1.
5x
put x = 1/2
2.5 isn't equal to 20
4=15x
put x =1/2
15 × 1/3 =7.5
7.5 isn't equal to 4
-4x = 60
put x = 1/2
-4×1/2 = -2
-2 isn't equal to 60
30 = 60x
pit x = 1/2
60 × 1/2 = 30
30 = 30
Therefore, the correct answer is D. 30 = 60x
2. Answer is B. -4 , 4
Put x = -4
l 5 × -4 l = l-20l = 20
20 = 20
Put x = 4
l 5 × 4 l = l20l = 20
20 = 20
Answer:
A unit cube has one cubic unit of volume.
Another unit cube with the same length, width and height as the unit cube shown would have the same volume
Step-by-step explanation:
A cube is a shape formed from the combination of a square.
A cube has equal sides.
But a unit cube has equal sides and equal volume to be equal to one, i.e unity.
Step-by-step explanation:
perimeter = 2(length) + 2(width)
let x represent the width of the rectangle




therefore width = 3 cm
length = 3+9
= 12cm
Answer:
Thew answer is "40 pounds".
Step-by-step explanation:
The value of x pound is $5
It's mixed with 80 pound
Formula:

Average price = 3

