Answer:
18.8 feet, 59.1 feet to the nearest tenth
Step-by-step explanation:
The diameter is the line drawn that divides the circle into two while the circumference is the perimeter of the circle. Both are a measure of the radius of the circle.
The diameter D = 2r where r is the radius of the circle
The circumference = 2Πr = ΠD where Π = 22/7
Given that the circular fountain has a radius of 9.4 feet
Its diameter = 2 × 9.4 feet = 18.8 feet
The circumference = 22/7 × 18.8 feet
=59.09 feet
≈ 59.1 feet to the nearest tenth
Solve the equation x^2 - 8x + 15 = 0.
Answer:
x=5 x=3
Step-by-step explanation:
x^2 - 8x + 15 = 0
Factor
What 2 numbers multiply to 15 and add to -8
-5*-3 = 15
-5-3 = -8
(x-5)(x-3) =0
Using the zero product property
x-5 =0 x-3 =0
x=5 x=3
Answer:
x = -5
Evidence to support reasoning:
speed of the car have to be to complete the trip in 17 hours?
The speed of car must be 60mile/hour, so that the trip will complete in 17 hours.
The rate of change of position of an object in any direction is called speed.
According to the given question
At a speed of 68 miles per hour, the trip will be complete in 15 hours.
⇒ Total distance covered in 15 hours = 68 × 15 = 1,020 miles
( because, distance = speed × time)
Therefore, the speed of car to complete the trip in 17 hours
=
Hence, the speed of car must be 60mile/hour, so that the trip will complete in 17 hours.
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Answer:
x = 60
Step-by-step explanation:
t =
15 = k/68
k=1020
~~~~~~~~~~~
17 = 1020/x
x = 1020/17
x = 60
Answer:
It would be x^2 + 3x - 5.
Step-by-step explanation:
5x2 + 18x − 2
5x2 + 13x + 2
5x2 − 18x − 8
5x2 + 13x + 8
The polynomial expression that represents the area of the rectangle is: C. 5x² - 18x - 8
Area = (length)(width)
Given the dimensions of the rectangle as:
Area of the rectangle = (5x + 2)(x - 4)
5x(x - 4) + 2(x - 4)
5x² - 20x + 2x - 8
Add like terms together
5x² - 18x - 8
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Answer:
Step-by-step explanation: For any triangle, the angles add to 180 degrees
A+B+C = 180
68+46+C = 180
114+C = 180
C+114 = 180
C+114-114 = 180-114
C = 66
Angle C is 66 degrees
Angle C' is 66 degrees
The triangles ABC and A'B'C' are similar, so angle C = angle C'