3 years ago

Write a compound inequality to represent all of the numbers between -4 and 6

Mathematics

1 answer:

Neko [114]3 years ago

6 0

-4 ≤ n ≤ 6

Hope this helps! :)))

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Step-by-step explanation:

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Step-by-step explanation:

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3 years ago

Fourteen over twelve equals d over fourtyeight

damaskus [11]

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Just the image below.

nlexa [21]

Answer:

1) 2x^3-2x^2+4x+20

Step-by-step explanation:

line up the equations, having each variable aligned with the similar variable, and distribute the minus sign across the parenthesis

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5 0

3 years ago

B) (1 - cos B)(1 + cos B) =<br> 1/cosec^2(B)

faltersainse [42]

Answer:

Proved

Step-by-step explanation:

$(1-cosB)(1+cosB)=\frac{1}{cosec^2B} \\\\Use\\\\ (a+b)(a-b)=a^2-b^2 ,\\so,\\=(1)^2-(cosB)^2\\=1-cos^2B\\\\Now\ , we\ know\ \\sin^2B+cos^2B=1\\\\so,\\sin^2B=1-cos^2B\\so we just replace,\\\\=1-cos^2B=>sin^2B\\and\ since\ sinB=\frac{1}{cosecB} \\\\=sin^2B=>\frac{1}{cosec^2B}\\$

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4 years ago