Answer:
B
Step-by-step explanation:
Answer:
48/12, 64/16, 4/1
Step-by-step explanation:
1. 16/4 x 3/3 = 48/12
2. 16/4 x 4/4 = 64/16
3. 16/4 ÷ 4/4 = 4/1
Answer:
d
Step-by-step explanation:
180-63 is 117
a line is 180 all together so therefore if we subtract the 63, we get the answer we want
The angle

is in Quadrant 1 and cos of an angle in quadrant 1 is always positive
Answer:
a x sqrt(7) - 49sqrt(x)
Step-by-step explanation:
sqrt(7x) [ sqrt(x) - 7sqrt(7)]
Distribute
sqrt(7x) *sqrt(x) - sqrt(7x)*7sqrt(7)
We know that sqrt(a) sqrt(b)= sqrt(ab)
sqrt(7x^2) - 7sqrt(7^2 *x)
Now lets separate out the perfect squares
sqrt(7) *sqrt(x^2) - 7sqrt(7^2)*sqrt(x)
x sqrt(7) - 7*7sqrt(x)
x sqrt(7) - 49sqrt(x)