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2 years ago

Write Down a rational number that lies between -9 and -8

Mathematics

1 answer:

madam [21]2 years ago

5 0

A rational number would be 81/10 or 8.1

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2/3x - 1-4x + 5/6x = -20 solve for x

viva [34]

Answer:

x=7 $\frac{3}{5}$

Step-by-step explanation:

$\frac{2x}{3}-1-4x+\frac{5x}{6}=-20$

$\frac{2x-4xtimes3}{3}-1+\frac{5x}{6}=-20$

- $\frac{5x}{2}=-19$

$x=\frac{38}{5}$

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3 years ago

What is the effect of multiplying both sides of an inequality by a negative number? Explain and give an example.

tekilochka [14]

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Step-by-step explanation:

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2 years ago

Simplify 5 + 2{x - 4[3x + 7(2 - x)]}.

spin [16.1K]

the answer is

Remove unnecessary parentheses.5+2x+16x−565+2x+16x-56
Subtract 5656 from 55 to get −51-51.2x+16x−512x+16x-51
Add 2x2x and 16x16x to get 18x18x.18x−51

7 0

3 years ago

Read 2 more answers

The length of a rectangle is 25

Flauer [41]

The width is 35in, the length is 95in

7 0

3 years ago

Can someone please help me

nadya68 [22]

Answer:

Right option is B.

Step-by-step explanation:

$\sf \longrightarrow \frac{ \sec x \sin( - x) + \tan( - x) }{1 + \sec( - x) } \\ \\ \sf \longrightarrow \frac{ \sec x( - \sin x) - \tan x}{1 + \sec x} \\ \\ \sf \longrightarrow \frac{ - \frac{1}{ \cos x } \times \sin x - \tan x }{1 + \sec x} \\ \\ \sf \longrightarrow \frac{ - \tan x - \tan x}{1 + \sec x} \\ \\ \sf \longrightarrow \frac{ - 2 \tan x}{1 + \sec x} \\ \\ \sf \longrightarrow \frac{ \frac{ - 2 \sin x}{ \cos x} }{1 + \frac{1}{ \cos x} } \\ \\ \sf \longrightarrow \frac{ \frac{ - 2 \sin x}{ \cos x} }{ \frac{ \cos x + 1}{ \cos x} } \\ \\ \boxed{ \sf{\longrightarrow \frac{ - 2 \sin x}{ \cos x + 1} }}$

4 0

1 year ago

Write Down a rational number that lies between -9 and -8​

Write Down a rational number that lies between -9 and -8