Answer:
4^0
Step-by-step explanation:
whenever the number is to the power of 0 it equals 1
4^5 x 4^-7 ÷ 4^-2 = 1
4^0 = 1
Answer:
7x + 14
Step-by-step explanation:
the first thing to do is expand the parentheses/brackets.
3(5x + 2) -2(4x - 4) will be
3(5x) + 3(2) -2(4x) -2(-4)
= 15x + 6 - 8x + 8
collect like terms
15x - 8x + 6 + 8 = 7x + 14
the answer is 7x + 14
Answer: 6x+6
Step-by-step explanation:
3*2x=6x
3*2=6
Therefore 3(2x+2) = 6x+6

To begin, we can simplify the expression's denominator by finding a common denominator between the denominators of the fractions in the denominator. To make them compatible, we can convert

into

:

Next, we can simplify:

Finally, to cancel the denominator within the denominator, we can multiply the whole expression by

, or 1:

The expression simplifies to

, or

as a mixed number.
Answer:r=3cm,diameter =6cm and C=18.84cm
Step-by-step explanation:
To find the radius,diameter and circumference according to the diagram drawn above
r=3cm
Diameter=2×3cm
d=6cm
To find the circumference
C=2πr
C=2×3.14×3cm
C=18.84cm