Answer:
44x² + 110x + 66
Step-by-step explanation:
(11x + 11)(4x + 6)
Use F.O.I.L. to complete this
Firsts (multiply the first number in each set of parenthesis together)
Outsides (multiply the first number in the first set of parenthesis and the second number in the second set of parenthesis together)
Insides (multiply the second number in the first set of parenthesis and the first number in the second set of parenthesis together)
Lasts (multiply the second number in each set of parenthesis together)
Firsts: 11x(4x) = 44x²
Outsides: 11x(6) = 66x
Insides: 11(4x) = 44x
Lasts: 11(6) = 66
Now add them all together:
44x² + 66x + 44x + 66
44x² + 110x + 66
Answer: a) y = - 3/2 x + 7/2
Step-by-step explanation:
The equation of a straight line can be represented in the slope-intercept form, y = mx + c
Where c = y intercept
m represents the slope of the line.
m = (y2 - y1)/(x2 - x1)
y2 = final value of y
y 1 = initial value of y
x2 = final value of x
x1 = initial value of x
The line passes through (3, - 1) and (- 1, 5),
y2 = 5
y1 = -1
x2 = - 1
x1 = 3
Slope,m = (5 - - 1)/(- 1 - 3) = 6/- 4 =
- 3/2
To determine the y intercept, we would substitute x = 3, y = - 1 and m= - 3/2 into y = mx + c. It becomes
- 1 = - 3/2 × 3 + c
- 1 = - 9/2 + c
c = - 1 + 9/2
c = 7/2
The equation becomes
y = - 3x/2 + 7/2
Answer: 6
Explanation:
Order of Operations means multiplication comes before subtraction so 3x3 = 9
And 15-9 is 6.
Answer:
18 (or more)
Step-by-step explanation:
Let's start off by creating an inequality:
Let "r" represent one pet rock
5r > 50 + 2r
Let's cancel out the 2r on the right side of the inequality by subtracting 2r from both sides:
5r > 50 + 2r
3r > 50
Now, to isolate r, we must divide both sides by 3:
3r > 50
r > 16.7
(Since we can't sell 16.7 pet rocks, we round up to 17)
r > 17
That means that Rosa has to sell at more than 17 pet rocks (so 18 or more pet rocks) to make profit.
Answer:
10 hours. please mark me the Brainliest.
Step-by-step explanation: