Answer:
I AM NOT ABLE TO GIVE THE ANSWER OF THIS QUESTION
3x²+x-5=0
a = 3, b = 1, c= -5
-> ∆ ( delta ) = b²-4ac = 61 > 0
-> x1 =( -b+√∆ )÷ 2a =...
x2 = (-b-√∆)÷2a =...
p/s: do your teachers teach you how to use ∆ ( delta ) in maths calculation ? i live in europe and our teachers teach us that way. however, it is a rịght and fast way. you should learn it.
Answer:
The length of the pipe = 17 feet
Step-by-step explanation:
length = 15 feet
width = 8 feet
Pythagorean theorem,
(diagonal)² = (length)² +(width)² {all angles of rectangle are 90°}
= 15² + 8²
= 225 + 64 = 289
diagonal = √289 = √ 17 * 17
= 17 feet
Answer:
68.965
Step-by-step explanation: