For #2 it is. #4 it isn’t. #6 it isn’t.
- x/9 - y/7 = 1
multiply through by 63:-
- 7x - 9y = 63 Answer
Answer: 157 ft
Step-by-step explanation: To find the circumference of a circle, start with the formula for the circumference of a circle which is shown below.
Circumference = 2πr
Notice that the circle has a radius of 25 feet. So we can plug in 25 feet for <em>r</em> in the formula. So we have (2)(π)(25 ft) which is equal to 50π ft.
Remember that π is approximately equal to 22/7 or 3.14 so we can estimate the value of the circumference by plugging in 3.14 for π.
So we have (50)(3.14) which is equal to 157.
So the circumference of the circle is approximately equal to 157 ft.
Answer:
Option (E)
Step-by-step explanation:
Expression given in the attachment,
By multiplying with x on both the sides of the given equation,
x² - 15 = 2x
x² - 2x - 15 = 0
x² - 5x + 3x - 15 = 0
x(x - 5) + 3(x - 5) = 0
(x + 3)(x - 5) = 0
(x + 3) = 0
x = -3
And (x - 5) = 0
x = 5
Therefore, x = -3, 5 are the solutions of the given equation.
Option (E) will be the answer.
