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Juliette [100K]
3 years ago
6

Is r2+8r+16=0 lenear equation or not​

Mathematics
1 answer:
djverab [1.8K]3 years ago
3 0

Answer:

no it isn't linear equation

A linear equation is any equation that can be written in the form. ax+b=0. where a and b are real numbers and x is a variable. This form is sometimes called the standard form of a linear equation.

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n a car factory, 6 machines can make 6 wheels in 6 minutes. How long will it take 30 machines to make 30 wheels?
vitfil [10]

Answer:

If 6 machines make 6 wheels in 6 minutes, that means each of the machines must make 1  wheel in 6 minutes.  If you now consider 30 machines, and we know each of these 30 machines makes 1 wheel in  6 minutes, that means all 30 machines will make 30 wheels in 6 minutes.

Step-by-step explanation:

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Tresset [83]

Given :   Isaac is purchasing two pairs of shoes—one pair for $37.00 and the second pair for $42.00. The state sales tax applied to Isaac’s bill is 7%.

To Find : How much is Isaac’s total bill?  

b) 25% discount off  before tax

Solution:

one pair for $37.00

second pair for $42.00

Total Bill before taxes = 37 + 42 =  79 $

7 % Sale Tax = (7/100)79 = 5.53 $

Isaac’s total bill = 79 +  5.53  = 84.53  $

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Total Bill before taxes = 79 - 19.75 = 59.25 $

7 % Sale Tax = (7/100)59.25 =4.1475 $

Isaac’s total bill = 59.25  +  4.1475  = 63.3975  $

Please post Question one by one

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