3 years ago

3/ [(5)^(1/2) – (3)^(1/2)] simpfily

Mathematics

1 answer:

love history [14]3 years ago

8 0

Usually the easiest way to solve this is by using a calculator. Of course only if your teacher allows you too.

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For what integer value of x is 3x+5>11 and x-3 <1?

Andre45 [30]

3x + 5 > 11
3x + (5 - 5) > 11 - 5
3x > 6
3x / 3 > 6 / 3
x > 2

x - 3 < 1
x (-3 + 3) < 1 + 3
x < 4

When subtracting / adding values to both sides, the inequality does not change.

When multiplying / dividing by a positive value, the inequality also doesn't change, but when multiplying , dividing with a negative value, the inequality must be flipped.

7 0

3 years ago

6r-2(r+8)=11 Solve equation

pav-90 [236]

$6r-2(r+8)=11\ \ \ \ |\text{use distributive property}\\\\6r-2(r)-2(8)=11\\\\6r-2r-16=11\ \ \ \ \ |+16\\\\4r=27\ \ \ \ \ |:4\\\\r=6.75$