The answer is C) A triangle with three equal sides because that’s the only one that makes sense.
The difference is tha in algebraic expression, there are variables (ex. 6x + 3x) unlike numerical expression doesn't contain a variable; its just numbers.
Answer:
2x+20
Step-by-step explanation:
Given
Age of Ethen = x
If Raj is 8 years older than Ethen, then;
Raj = x + 8
6 years time
Ethen age = x+ 6
Raj = x+8+6 = x+14
Sum of ages in 6 years time = x+6+x+14
Sum of ages in 6 years time = 2x + 20
Hence the required sum of ages is 2x+20
Answer: 55, 62, 69, 76
Step-by-step explanation:
(to complete the table, plug d values into the equation to find p values)
p = 7d + 6, d = 7
p = 7(7) + 6 = 49 + 6 = 55
p = 7d + 6, d = 8
p = 7(8) + 6 = 56 + 6 =62
p = 7d + 6, d = 9
p = 7(9) + 6 = 63 + 6 =69
p = 7d + 6, d = 10
p = 7(10) + 6 = 70 + 6 =76
Step-by-step explanation:
the first : e.g. a trapezoid
only 2 lines are parallel, but still it is a closed object with 4 vertexes and therefore 360° sum of internal angles. and 2 of the angles are smaller than 90°, and 2 are larger than 90°.
the second : a parallelogram, with all 4 sides having the same length. a square that is pushed e.g. on the top while the bottom stays.
the third : a rectangle. perpendicular means intersecting at 90°. but not a square. length and width must be different.
that's it, really. what was so confusing for you ?