Answer:
87.92
Step-by-step explanation:
3.14(a²+ab)=
<em>Plugging in values for a and b</em>
3.14(4²+4×3)=
3.14(16+12)=
3.14(28)=
87.92
Answer:
1st one
Step-by-step explanation:
6x+4/5=8
subtract 6x from both sides
4/5=8-6x
multiply both sides by 5 to get rid of the fraction
4=40-30x
divide both sides by 2
2=20-15x
add 15x to both sides
15x+2=20
subtract 2 from both sides
15x=18
divide both sides by 15
x=1.2
Solve for y. Do that by adding the opposite of the x-term, then dividing by the coefficient of y.
11y = 12x - 8
y = (12/11)x - 8/11
The slope is 12/11.
The y-intercept is -8/11.
Answer:
They all have a solution of 3.
Step-by-step explanation:
Each of the equations represented are basically the same thing, therefore have the same answer.
A) 2r = 6 - You would divide 6 by 2 and you would get 3.
B) 6 = 2r - You would still divide 6 by 2, which equals 3.
C) 2r = 6 - Then again you would divide 6 by 2 to get 3.
- <em>I hope this helps :)</em>
