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Leya [2.2K]
2 years ago
11

Which of the following could be the equation of a line perpendicular to the line 2x−5y=7?

Mathematics
1 answer:
yuradex [85]2 years ago
3 0

The equation of a line perpendicular to the line 2x − 5y = 7 is y = (-5/2)x + b

<h3>What is an equation?</h3>

An equation is an expression that shows the relationship between two or more variables or numbers.

Two lines are said to be perpendicular if the product of their slopes is equal to -1.

The slope of the line:

2x - 5y = 7

5y = 2x - 7

y = (2/5)x - 7

The slope of the line 2x - 5y = 7 is 2/5. The slope of the line perpendicular is -5/2

Hence:

The equation of a line perpendicular to the line 2x − 5y = 7 is y = (-5/2)x + b

Find out more on equation at: brainly.com/question/2972832

#SPJ1

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3 years ago
You have an account with a principal of $200. it pays 8% at the end of every year. calculate the principal at the end of 3 years
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Simple interest is a method of calculating interest on an amount for n period of time with a rate of interest of r. The principal at the end of 3 years is $248.

<h3>What is simple interest?</h3>

Simple interest is a method of calculating interest on an amount for n period of time with a rate of interest of r. It is calculated with the help of the formula,

SI = (P × R × T)/100

where SI is the simple interest, P is the principal amount, R is the rate of interest, and T is the time period.

The principal at the end of 3 years is,

Principal after 3 years = P + (P × R × T)

= $200 + ($200 × 0.08 × 3)

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= $248

Hence, the principal at the end of 3 years is $248.

Learn more about Simple Interest:

brainly.com/question/2793278

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