Answer:
x = -6
Step-by-step explanation:
Solve for x over the real numbers:
2 x^2 + 24 x + 72 = 0
Divide both sides by 2:
x^2 + 12 x + 36 = 0
Write the left hand side as a square:
(x + 6)^2 = 0
Take the square root of both sides:
x + 6 = 0
Subtract 6 from both sides:
Answer: x = -6
Answer: 8 skates
Step-by-step explanation:
Given that:
Skate rental = $3
Let number of skates rented by cotters = x
Hence, amount paid by cotters = 3x
The Moores paid $6 more
Moores amount = 3x + 6
Combined amount paid = 42
3x + 3x + 6 = 42
6x + 6 = 42
6x = 42 - 6
6x = 36
x = 36 / 6
x = 6
Hence, amount spent by the Moore's:
3x + 6
3(6) + 6 = 18 + 6 = $24
Cost per skate rental = $3
Hence x number of skates rented by the Moore's = $24 / 3 = 8 skates
13/400
1/50
Find a common denominator, 400. 400/50=80
13/400
80/400
80>13
2% milk has more milk fat per cup.
The y-intercept of y=4x is (0, 0)
Option B is correct
<h3>Y-intercept of a linear equation</h3>
The slope-intercept of a line is given as:
y = mx + c
where m represents the slope
c represents the y-intercept
The given equation is y = 4x
To find the y-intercept, substitute x = 0 into the equation and solve for y
y = 4(0)
y = 0
Therefore the y-intercept of y=4x is (0, 0)
Learn more on y-intercept of a line here: brainly.com/question/10700419
Answer:
40
Step-by-step explanation:
angle AOB= 2x=80
x=80/2
x=40
