Answer:
a. Simplify each term. 49/2+0
Add 49/2 and 0.
49/2
The result can be shown in multiple forms.
Exact Form:
49/2
b. Replace the variable a with −13 in the expression.
−(−1/3)²b²−3(−1/3)³b²
Replace the variable b with −1 in the expression.
−(−1/3)²(−1)²−3(−1/3)³(−1)²
Simplify each term. −1/9+1/9 = 0
Combine fractions. 0
Step-by-step explanation:
1)
Let unknown number be x
3x + 5 = 65
3x = 60
x = 20
Therefore, unknown number is 20.
Area=pi (radius^2) Plug in numbers.
206=3.14 (r^2) Divide both sides by 3.14
65.61=r^2 Then square root both sides.
8.1ft =r Then round to the nearest foot.
r=8ft
8y = 23 + 3x divided by 8: divide ALL numbers by 8
8y/8 is y
23/8 is 23/8
3x/8 is 3/8x
Therefore, the answer would be;
y = 23/8 + 3/8x, which is the same as y = 3/8x + 23/8
