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Firlakuza [10]
2 years ago
6

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}

8 0
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]

for some questions helps you to solve an unknown number for algebra

cant think of example

Step-by-step explanation:

6 0
2 years ago
Simplify 5 + 2{x - 4[3x + 7(2 - x)]}.
spin [16.1K]

the answer is 

Remove unnecessary parentheses.<span><span>5+2x+16x−56</span><span>5+2x+16x-56</span></span>
Subtract <span>5656</span> from <span>55</span> to get <span><span>−51</span><span>-51</span></span>.<span><span>2x+16x−51</span><span>2x+16x-51</span></span>
Add <span><span>2x</span><span>2x</span></span> and <span><span>16x</span><span>16x</span></span> to get <span><span>18x</span><span>18x</span></span>.<span>18x−<span>51</span></span>
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:

<u>Right</u><u> </u><u>option</u><u> </u><u>is</u><u> </u><u>B</u><u>.</u><u> </u>

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
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