Mathematics: The product of two consecutive odd numbers is 899. Find the numbers

The product of two consecutive odd numbers is 899.

Ответ:

kfhayworth4480

18.01.2022

Mathematics

Step-by-step explanation:

x(x+2)=899

x^2+2x-899=0

$x=\frac{-2 \pm\sqrt{4+3596} }{2} \\=\frac{-2 \pm36}{2} \\x=-19,17\\$ $so ~numbers ~are~-19,-17\\or~17,19$

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Ответ:

kklovesfood

02.02.2021

Mathematics

To calculate the speed of the 70 teeth countershaft drive gear, evaluate the surface teeth per minute (STM) of each gear. STM = Speed x number of teeth, which is equivalent for both gears. Thus, 45 teeth * 450 r.p.m. = 70 teeth * 'x' r.p.m. is the governing equation. Rearranging the equation to calculate 'x' as the 70 teeth gear's speed, the answer is 289.3 r.p.m.

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The product of two consecutive odd numbers is 899. Find the numbers

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