3x-6+9+5=25 is the first step
Answer:
the answer is second one 14
Answer: 6.125 hour
Explanation:
Train 1 ===> 1 hour = 90 miles
Train 2 ===> 1 hour = 120 miles
1 hour = 90 + 120 = 210 miles apart
210 miles = 1 hour
735 miles = 735 ÷ 210 = 6.125 hours
Answer:
Step-by-step explanation:
(0, 9) (3, 0)
(0 - 9)/(3 - 0) = -9/3 = -3
y - 9 = -3(x - 0)
y - 9 = -3x + 0
y = -3x + 9
The square footage of the path is 47.1 ft²
The area of a circle is:
A = πr²
Where r is the radius of the circle.
Let us assume that the pool is a circle.
Given that the pool has a radius (r₁) of 7 feet and a path 1 foot wide would go round the pool.
Radius of pool and cement path (r₂) = 7 ft + 1 ft = 8 ft.
The square footage of the path = πr₂² - πr₁² = π*8² - π * 7² = 47.1 ft²
Hence The square footage of the path is 47.1 ft²
Find out more at: brainly.com/question/23328170
