Answer:
Given -2x + 7x + 8, the correct expression is 5x + 8.
Step-by-step explanation:
The student didn´t notice that 8 was not follow by x, and try to apply common factor. But we can´t do that. The correct form to solve this expression is -2x + 7x + 8 = (-2 + 7)x + 8 = 5x +8.
Answer:
Step-by-step explanation:
t22 = a + (n- 1)d
t22 = 3 + 21*4
t22 = 3 + 84
t22 = 87
Unknowns on one side, known on other.
2/5x - 4/5x = 30-25
-2/5x=5
X= -25/2
X=12.5
Answer:
6^8=6*6*6*6*6*6*6*6
=1679616
Step-by-step explanation:
In this expression the exponent shows that how many times 6 will be multiplied.
6^8=6*6*6*6*6*6*6*6
=1679616
The answer is (3) (3,9.5)
