Answer:
X^2 -4
Step-by-step explanation:
Not entirely sure but would u just expand the brackets. As this is a difference between 2 squares the answer should be correct but it not sure.
Answer:
1/3
Step-by-step explanation:
We can solve using algebra: let x be the unknown number.
so 11/3 ÷ x = 11.
Solving:
11/3 = 11x.
x = 11/3 ÷11 = 1/3
You can also check the answer by going:
11/3 ÷ 1/3 = 11/3 x 3/1 = 33/3 = 11 (using fraction rules for multiplying and dividing ie. to divide by a fraction we multiple by it's reciprocal, and to multiply by a fraction, we multiple the numerators and the denominators).
Answer:
720
Step-by-step explanation:
6 x 120=720
Every 1 cm=120 km
So multiply both sides by 6 and you get
6 cm= 720 km
Answer:
x = -37.5
Step-by-step explanation:
Set up a proportion so -5/12.5 = 15/x
Solve for x so -5x = 15(12.5) so -5x = 187.5 so x = -37.5
