Can you please explain how the answer is 24 for this Problem 60÷5(7-5)

Mathematics

1 answer:

irakobra [83]3 years ago

8 0

do order of operations:

60 / 5*(7-5)=

do parenthesis first: 7-5=2

60 / 5*2 =

now do division: 60/5 =12

12*2 =

now multiply: 12 *2 = 24

answer is 24

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Write the equation of a line perpendicular to 5x−9y=−8 that passes through the point (−5,8).

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Answer: y = -(9/5)x - 1

Step-by-step explanation:

Rewrite the equation in standard form: y = (5/9)x+(8/9). [y=mx+b]

A line perpendicular to this would have a slope that is the negative inverse of the original slope (5/9), which would make it -(9/5). The y-intercept would also change, but we don't know the value, yet. For now, we'll use "b" for the y-intercept. This results in a perpendicular line:

y = -(9/5)x + b

We can calculate b, the y-intercept, by using the point (-5,8) and solving for b.

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8 = (9) + b

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3 years ago

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I hope this helps you

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Nathan wants to use coordinate geometry to prove that the opposite sides of a rectangle are congruent. He places parallelogram A

valentina_108 [34]

<h3><u>Answer:</u></h3>

The formula determine the distance from C to D is:

$\sqrt{(0-a)^2+(-b)^2}=\sqrt{a^2}=a$

<h3><u>Step-by-step explanation:</u></h3>

The formula that can be used to determine the distance from point C to point D is:

$\sqrt{(0-a)^2+(-b)^2}=\sqrt{a^2}=a$

We know that distance between two points A(a,b) and B(c,d) is equal to the length of the line segment AB and is calculated by the help of the formula:

$\sqrt{(c-a)^2+(b-d)^2}$