Answer:
-2 a b + 2 b + 6 a^2 + 9
Step-by-step explanation:
Simplify the following:
2 a^2 + a b + 2 b + 4 a^2 - 3 a b + 9
Grouping like terms, 2 a^2 + a b + 2 b + 4 a^2 - 3 a b + 9 = (a b - 3 a b) + 2 b + (2 a^2 + 4 a^2) + 9:
(a b - 3 a b) + 2 b + (2 a^2 + 4 a^2) + 9
a b + a b (-3) = -2 a b:
-2 a b + 2 b + (2 a^2 + 4 a^2) + 9
2 a^2 + 4 a^2 = 6 a^2:
Answer: -2 a b + 2 b + 6 a^2 + 9
Answer:
y = 5/7 x - 6
Step-by-step explanation:
For two lines to be perpendicular, the product of their slope must be -1
The slope of the given function is -7/5
Let the slope of the required function be m
m * -7/5 = -1
7/5 m = 1
7 = 5m
m = 5/7
The slope of the line perpendicular to the line is 5/7
The required equation (using any value of the y-intercept) is expressed as;
y = 5/7 x - 6
Note that the y-intercept value was assumed and any value can be used
A is located, as you look A is past -2 almost hitting -3 making the mark 2.8 so the answer is A
Answer:
A.b = 210 + 15x
B.b = 210 – 15x
C.b = 195 + 15x
D.b = 195 – 15x
Step-by-step explanation
B is correct. Your starting amount is 210$ And you're taking away 15$ each time she uses the club,x.
How could it be a fraction? All the numbers are whole & no division? May I assume the #s listed next to each other are multiplied, i.e. 7 2? If so,...
multiply first...
14 * 15 + 10*3 + 1755 (9*13*15)
210 + 30 + 1755
1,995
